PEROXYACETIC ACID (PERACETIC ACID)

Peroxyacetic acid (peracetic acid), is an organic chemical compound used in numerous applications, including chemical disinfectant in healthcare, sanitizer in the food industry, and disinfectant during water treatment. 
Peroxyacetic acid (peracetic acid) has also previously been used during the manufacture of chemical intermediates for pharmaceuticals. 
Peroxyacetic acid (peracetic acid) to be versatile and effective, and professionals with environmental responsibilities consider it to be environmentally friendly due to its decomposition products, which include acetic acid, oxygen, and water. 

CAS Number: 79-21-0
Molecular Formula: C2H4O3
Molecular Weight: 76.05
EINECS Number: 201-186-8

Synonyms: PERACETIC ACID, Peroxyacetic acid, Ethaneperoxoic acid, 79-21-0, Estosteril, Acetic peroxide, Peroxoacetic acid, Acetyl hydroperoxide, Monoperacetic acid, Osbon AC, Proxitane 4002, Desoxon 1, Ethaneperoxic acid, Hydroperoxide, acetyl, Acide peracetique, Acido peroxiacetico, Acecide, Proxitane, Caswell No. 644, Peroxy acetic acid, Acide peroxyacetique, Kyselina peroxyoctova, CCRIS 686, HSDB 1106, UNII-I6KPI2E1HD, I6KPI2E1HD, peroxy-acetic acid, EINECS 201-186-8, EPA Pesticide Chemical Code 063201, BRN 1098464, DTXSID1025853, CHEMBL444965, DTXCID805853, CHEBI:42530, EC 201-186-8, 4-02-00-00390 (Beilstein Handbook Reference), NCGC00166305-01, PERACETIC ACID (MART.), PERACETIC ACID [MART.], Oxypel, Perethanoic Acid, Proxitane S, Acide peracetique [French], Proxitane 12A, F50, Acide peroxyacetique [French], Acido peroxiacetico [Spanish], Kyselina peroxyoctova [Czech], Proxitane 1507, LCAP, Aceticperoxide, Ethanperoxsaure, Peressigsaure, Bactipal, Oxymaster, Soproper, acetyldioxidanyl, Dialox, peractic acid, Peroxyessigsaure, Peroxyethansaure, Sekusept steril, Acetic peroxid, per-acetic acid, Acido peracetico, Peroxacetic acid, Acid, Peracetic, Peraflu D, acetic acid oxide, TLCUO Phytoncide, peroxyethanoic acid, PU US Phytoncide, Acid, Peroxyacetic, AcOOH, Acecide (TN), Acid, Peroxyethanoic, GPES, JOYCARE, UNICARE, Wofasteril E 400, CLEAN WORKS, TLCUO LEMON, CARE PLUS, TLCUO PURE, PU US LEMON, PU US PURE, CH3CO2OH, WECLEAN C2 TLCUO, Ethaneperoxoic acid, 9CI, CH3C(O)OOH, BACTERIA ZERO PREMIUM, PERACETIC ACID [MI], PERACETIC ACID [HSDB], PERACETIC ACID [WHO-DD], DTXSID40957943, peroxyacetic acid (peracetic acid), BLOWHALE DEODORANT SENITIZER, Tox21_112402, BDBM50266095, Peroxyacetic acid, >43% and with >6% hydrogen peroxide [Forbidden], AKOS015837803, DB14556, CAS-79-21-0, USEPA/OPP Pesticide Code: 063201, NS00001663, D03467, EN300-173399, Dr.Vir Germ Peroxyacetic acid Multi-disinfectant, Q375140, Peroxyacetic acid, >43% and with >6% hydrogen peroxide.

Peroxyacetic acid (peracetic acid), is a strong oxidizing agent and disinfectant. 
Peroxyacetic acid (peracetic acid) is a colorless liquid with a pungent odor and is highly reactive due to its peroxide and carboxylic acid functional groups. 
Peroxyacetic acid (peracetic acid) is formed by the reaction of acetic acid and hydrogen peroxide in the presence of sulfuric acid or a strong acid catalyst.

Produced by reacting acetic acid and hydrogen peroxide with an acid catalyst, peracetic acid is always sold in stabilized solutions containing acetic acid, hydrogen peroxide, and water. 
For the food and healthcare industries, peracetic acid is typically sold in concentrates of 1 to 5 percent and is diluted before use.
However, industrial hygienists recognize that it is also highly corrosive and a strong oxidizer, and exposure to peracetic acid can severely irritate the eyes, skin, and respiratory system.

Since the early 1900s, chlorine has been used as a water disinfectant. 
Peroxyacetic acid (peracetic acid) was favored by water and wastewater industries for disinfection until several harmful disinfection by-products were discovered in chlorinated water. 
Peroxyacetic acid (peracetic acid) is a chemical product belonging to peroxide compounds such as hydrogen peroxide. 

However, unlike hydrogen peroxide, it is a more potent antimicrobial agent. 
Peroxyacetic acid (peracetic acid) has high germicidal efficiency and sterilizing capability, and its degradation residuals are not dangerous to the environment or toxic to human health. 
Until 1960, Peroxyacetic acid (peracetic acid) was of special interest to the food processing industry and actually was considered the only agent able to replace glutaraldehyde in the sterilization of surgical, medical, and odontoiatry instruments. 

The actual core medical applications of Peroxyacetic acid (peracetic acid) are its potent antimicrobial action, also at low temperatures, and the total absence of toxic residuals
Peroxyacetic acid (peracetic acid) is a peroxy acid that is acetic acid in which the OH group is substituted by a hydroperoxy group. 
It is a versatile oxidising agent that is used as a disinfectant. 

Peroxyacetic acid (peracetic acid) has a role as an oxidising agent and a disinfectant. 
Peroxyacetic acid (peracetic acid) is functionally related to an acetic acid.
Peroxyacetic acid (peracetic acid) is a mixture of acetic acid (CH3COOH) and hydrogen peroxide (H2O2) in an aqueous solution. 

It is a very strong oxidizing agent and has stronger oxidation potential than chlorine or chlorine dioxide. 
Liquid, clear, and colorless with no foaming capability. 
Peroxyacetic acid (peracetic acid) has a strong pungent acetic acid odor, and the pH is acid. 

Peroxyacetic acid (peracetic acid) is produced by reacting acetic acid and hydrogen peroxide. 
The reaction is allowed to continue for up to 10 days in order to achieve high yields of product. 
Additional methods of preparation involve the oxidation of acetaldehyde or alternatively as an end product of the reaction of acetic anhydride, hydrogen peroxide, and sulfuric acid. 

Another method involves the reaction of tetraacetylethylenediamine (TAED) in the presence of an alkaline hydrogen peroxide solution.
Peroxyacetic acid (peracetic acid) colorless liquid with a strong, pungent acrid odor.
Peroxyacetic acid (peracetic acid) is used as a bactericide and fungicide, especially in food processing; as a reagent in making caprolactam and glycerol; as an oxidant for preparing epoxy compounds; as a bleaching agent; a sterilizing agent; and as a polymerization catalyst for polyester resins.

Peroxyacetic acid (peracetic acid) is an organic peroxide based, colorless liquid with a low pH and a strong, pungent, vinegar-like odor. 
In the concentrated form it is highly corrosive and unstable. 
Peroxyacetic acid (peracetic acid) is formed from the reaction of acetic acid and hydrogen peroxide. 

Commercial Peroxyacetic acid (peracetic acid) products contain all three chemicals in an aqueous solution often with stabilizers added. 
The concentration of Peroxyacetic acid (peracetic acid) as the active ingredient, as well as the mixture of the other ingredients, can vary widely. 
Peroxyacetic acid (peracetic acid) is used in food and beverage industries as well as hospitals, health care and pharmaceutical facilities as an antimicrobial agent, surface cleaner and sanitizer. 

In many meat and poultry establishments Peroxyacetic acid (peracetic acid) is used on carcasses, parts, trim and organs to reduce bacterial contamination and foot spoilage. 
Peroxyacetic acid (peracetic acid) can be applied by a variety of methods including spray cabinet, dip tank, hand spray pump and chiller. 
Peroxyacetic acid (peracetic acid) is an organic compound with the formula CH3CO3H. 

This peroxy acid is a colorless liquid with a characteristic acrid odor reminiscent of acetic acid. 
Peroxyacetic acid (peracetic acid) can be highly corrosive.
Peroxyacetic acid (peracetic acid) is a weaker acid than the parent acetic acid, with a pKa of 8.2.

Peroxyacetic acid (peracetic acid) is produced industrially by the autoxidation of acetaldehyde: O2 + CH3CHO → CH3CO3H
In the presence of a strong acid catalyst, such as sulfuric acid, acetic acid and hydrogen peroxide produce peracetic acid: H2O2 + CH3CO2H ⇌ CH3CO3H + H2O
However, in concentrations (3-6%) of vinegar and hydrogen peroxide marketed for household use, mixing without a strong acid catalyst will not form peracetic acid.

As an alternative, Peroxyacetic acid (peracetic acid) and acetic anhydride can be used to generate a solution of the acid with lower water content.
Peroxyacetic acid (peracetic acid) is generated in situ by some laundry detergents. 
This is achieved by the action of bleach activators, such as tetraacetylethylenediamine and sodium nonanoyloxybenzenesulfonate, upon hydrogen peroxide formed from sodium percarbonate in water. 

The peracetic acid is a more effective bleaching agent than hydrogen peroxide itself.
Peroxyacetic acid (peracetic acid) is also formed naturally in the environment through a series of photochemical reactions involving formaldehyde and photo-oxidant radicals.
Peroxyacetic acid (peracetic acid) is always sold in solution as a mixture with acetic acid and hydrogen peroxide to maintain its stability. 

The concentration of the acid as the active ingredient can vary.
Although less active than more acidic peracids (e.g., m-CPBA), Peroxyacetic acid (peracetic acid) in various forms is used for the epoxidation of various alkenes (Prilezhaev reaction). 
Useful applications are for unsaturated fats, synthetic and natural rubbers, and some natural products such as pinene. 

A variety of factors affect the amount of free acid or sulfuric acid (used to prepare the peracid).
Peroxyacetic acid (peracetic acid) is a combination of two important and versatile compounds: hydrogen peroxide and acetic acid. 
The two chemicals combine to form a new compound, Peroxyacetic acid (peracetic acid). 

This is an equilibrium reaction where over a period of hours, Peroxyacetic acid (peracetic acid) is formed in situ by assuming elements of both reagents to form the new compound.
Peroxyacetic acid (peracetic acid) is a sanitizing agent widely used in the food and brewing industries and increasingly in the wine industry for its ability to efficiently kill microbes and sanitize surfaces “on contact”. 

Despite its killing power against microbes, tank rinsing following sanitation is not required as the diluted concentrations (2.5-15%) at which it is used leaves low residual Peroxyacetic acid (peracetic acid), found harmless to human consumption, and breaks down to form acetic acid, oxygen, and water. 
The mechanism of microbicide is through the formation of hydroxyl radicals, which rapidly oxidize a variety of organic materials, including lipids, ionic protein bonds, sulfhydryl groups, and cysteine disulfide bonds (disrupting protein structure), killing cells with ruthless efficiency even at low concentrations; this is the same oxidative antimicrobial mechanism exhibited by hydrogen peroxide, but Peroxyacetic acid (peracetic acid) has a much higher oxidative capacity at much lower concentrations. 

As such, it displays efficient killing capacity against gram-positive and gram-negative bacteria, yeasts, molds, and algae at a broad temperature (≥ 34˚F) and pH range (≤ pH 8.5) (Heritage Systems). 
Peroxyacetic acid (peracetic acid) diminishes these populations within one minute of contact, but is less effective at depleting bacterial biofilms on contact without prior cleaning. 
Claims are made both ways as to whether acetic acid formed by the breakdown of Peroxyacetic acid (peracetic acid) is at concentrations significant to influence the acetate concentration of wine contacting unrinsed surfaces sterilized with Peroxyacetic acid (peracetic acid).

Peroxyacetic acid (peracetic acid), which is also known as peracetic acid or PAA, is a commonly used sanitizer in the produce industry. 
Peroxyacetic acid (peracetic acid) goes by many trade names, such as Sanidate 5.0, VigorOx 15 F&V, BioSide HS-15%, and Tsunami 100, all of which are a mixture of PAA, water, hydrogen peroxide and acetic acid. 
Once dissolved in water, the breakdown products of Peroxyacetic acid (peracetic acid)s are carbon dioxide, oxygen and water. 

Peroxyacetic acid (peracetic acid) is produced from the reaction between hydrogen peroxide and acetic acid. 
Peroxyacetic acid (peracetic acid) is an effective disinfectant and decomposes rapidly, leaving no harmful residues. 
These qualities make it ideal for use in many industries such as food and beverage, health care, water treatment, pulp and paper bleaching, and agriculture. 

As a result, the use of Peroxyacetic acid (peracetic acid) is increasing rapidly. 
Peroxyacetic acid (peracetic acid) is corrosive and can irritate the eyes, skin, and respiratory tract of people exposed in the workplace. 
Inhaling Peroxyacetic acid (peracetic acid) can cause coughing, shortness of breath, and pulmonary edema.

Peroxyacetic acid (peracetic acid), is a organic compound with the formula CH3CO3H. 
This organic peroxide is a colorless liquid with a characteristic acrid odor reminiscent of acetic acid. 
Peroxyacetic acid (peracetic acid) can be highly corrosive.

Peroxyacetic acid (peracetic acid) has been widely used in food, medical, and synthetic chemical fields for the past several decades. 
Recently, peroxyacetic acid has gradually become an effective alternative disinfectant in wastewater disinfection and has strong redox capacity for removing micro-pollutants from drinking water. 
Peroxyacetic acid (peracetic acid) is a much weaker acid than the parent acetic acid, with a pKa of 8.2.

Peroxyacetic acid (peracetic acid) as it is commonly known, is a strong oxidising agent with excellent disinfectant properties. 
Peroxyacetic acid (peracetic acid) is an organic acid with an acrid odour, represented by the formula CH3CO3H.
Peroxyacetic acid (peracetic acid) is a powerful sanitiser effective against bacteria and their spores, yeasts, moulds, fungi, and their spores, and viruses.

Peroxyacetic acid (peracetic acid)’s sanitising action is rapid even at ambient temperatures.
Peroxyacetic acid (peracetic acid) is of particular use for sanitising in breweries, cordial manufacturing plant and milk handling equipment as it is non-foaming, passivates stainless steel, may be used under a carbon dioxide head, and breaks down to acetic acid and oxygen.
Peroxyacetic acid (peracetic acid) functions as an oxidiser and is mainly used as a carcass wash in commercial beef processing plants. 

Peroxyacetic acid (peracetic acid) requires proper handling such as storage in a cool, well-ventilated area. 
The approximate cost per beef or pig carcass is indicated in Peroxyacetic acid (peracetic acid) is approved by FSIS for use on beef carcasses. 
In the US, the Peroxyacetic acid (peracetic acid)-based process is approved for washing, rinsing, cooling, or otherwise processing fresh beef carcases. 

The compound mixture must be no more than 0.022% Peroxyacetic acid (peracetic acid) and 0.0075% hydrogen peroxide delivered at a maximum pressure of 1724 kPa and maximum temperature of 50°C. 
However, Peroxyacetic acid (peracetic acid) is not permitted under EU regulations.
Peroxyacetic acid (peracetic acid) is recorded under the formula CH3CO3H, which is produced by the reaction of acetic acid with hydrogen peroxide and is known by the acronym PAA. 

Peroxyacetic acid (peracetic acid)s main use is in the food industry as a disinfectant, as part of food and drink cleaning protocols.
Peroxyacetic acid (peracetic acid) is an acid with an oxidising capacity, which makes it very effective as a biocide. 
This is why it is commonly used in food factories. 

Peroxyacetic acid (peracetic acid) is used to keep aerobic and anaerobic bacteria and their spores at bay, against yeasts and moulds and also against various viruses.
Peroxyacetic acid (peracetic acid) is used at different levels as a disinfectant. 
To begin with, it is used to disinfect tanks, pipes or mixers through which food passes. 

Peroxyacetic acid (peracetic acid) is also present in the packaging process, to sanitize containers and sealing systems where food is stored for its later distribution.
Peroxyacetic acid (peracetic acid), is used in numerous applications, including as a chemical disinfectant in healthcare, sanitizer in the food industry, and purifier during water treatment. 
Peroxyacetic acid (peracetic acid)’s an often preferred cleaning agent because it leaves no toxic residue and it is no-rinse.

Given Peroxyacetic acid (peracetic acid)’s increasing popularity and use throughout multiple industries, more attention is now being focused on health hazards and associated risks when Peroxyacetic acid (peracetic acid) is used in the workplace.
Moreover, peracetic acid’s ability to become airborne, the varying concentrations that may be used, and the relatively low occupational exposure limits (OELs) mean that if are going to use Peroxyacetic acid (peracetic acid), there is an increased need to review company risk assessment procedures and personal protective equipment (PPE) choices for various applications of this substance.

Peroxyacetic acid (peracetic acid) is an effective disinfectant and sterilizing agent against a broad spectrum of microorganisms, including bacteria, viruses, fungi, and spores. 
Peroxyacetic acid (peracetic acid) is commonly used in healthcare facilities, pharmaceutical manufacturing, food processing, and water treatment to sanitize equipment, surfaces, and wastewater.
Peroxyacetic acid (peracetic acid) is approved by regulatory agencies, such as the U.S. Food and Drug Administration (FDA) and the European Food Safety Authority (EFSA), for use as a disinfectant in food processing and packaging facilities. 

Peroxyacetic acid (peracetic acid) helps to control microbial contamination on food contact surfaces, equipment, and food products, ensuring food safety and extending shelf life.
In the poultry and meat processing industry, Peroxyacetic acid (peracetic acid) is used to disinfect and sanitize equipment, conveyor belts, packaging materials, and processing areas to prevent cross-contamination and reduce the risk of foodborne illnesses caused by pathogens such as Salmonella and E. coli.

Peroxyacetic acid (peracetic acid) is employed in municipal water treatment plants and industrial wastewater treatment facilities as a disinfectant and oxidizing agent. 
Peroxyacetic acid (peracetic acid) helps to deactivate pathogens, neutralize odors, and control algae and biofilm formation in water distribution systems, swimming pools, and cooling towers.
Peroxyacetic acid (peracetic acid) is used for sterilizing medical devices, surgical instruments, and laboratory equipment in healthcare settings. 

Peroxyacetic acid (peracetic acid) provides rapid sterilization without leaving toxic residues or requiring heat, making it suitable for heat-sensitive medical devices and equipment.
In agriculture, peracetic acid is used as a biocide and fungicide for crop protection and post-harvest treatment. 
Peroxyacetic acid (peracetic acid) helps to control fungal diseases, bacterial pathogens, and mold growth on fruits, vegetables, and agricultural commodities, improving crop yield and quality.

Peroxyacetic acid (peracetic acid) is employed in veterinary medicine for disinfecting animal housing, equipment, and surgical instruments in veterinary clinics, animal shelters, and livestock facilities. 
Peroxyacetic acid (peracetic acid) helps to prevent the spread of infectious diseases and maintain animal health.
Peroxyacetic acid (peracetic acid), is an organic chemical compound (CH3CO3H) that is created by a chemical equilibrium reaction with acetic acid and hydrogen peroxide in water. 

Peroxyacetic acid (peracetic acid) is a colorless liquid that has a strong vinegar like odor that can be experienced at very low levels. 
Peroxyacetic acid (peracetic acid) is a strong oxidant and is highly reactive. 
However, it breaks down to acetic acid (vinegar) and water leaving no harmful residue, which makes it the chemical of choice when looking for an environmentally safe antimicrobial product.

Peroxyacetic acid (peracetic acid), is a weak acid. 
It belongs to the family of oxidants and is used in the pharmaceutical industry and in the medical field as an oxidant, as a disinfectant biocide or as a cold sterilant for certain medical devices.
Peroxyacetic acid (peracetic acid) is a powerful antimicrobial agent but also a bactericide, virucide and fungicide. 

Peroxyacetic acid (peracetic acid) is also used as a bleaching agent for textile fibres and paper pulp.
In the chemical industry, Peroxyacetic acid (peracetic acid) is a polymerisation initiator and cross-linking agent, for example in the manufacture of epoxy resins.
Peroxyacetic acid (peracetic acid) does not exist in a pure state, it is an unstable compound present as a colourless liquid with a pungent and unpleasant odour.

Its disinfectant and antioxidant properties have been known since 1902 and its use developed in the 1950s/1960s in the food and medical sectors thanks, among other things, to the marketing of the 98% hydrogen peroxide necessary for its production.
Highly soluble in water, alcohol and ether, peracetic acid is most often produced by reacting mixed boroacetic anhydride with hydrogen peroxide.
Under conventional conditions, peracetic acid degrades to non-toxic by-products (acetic acid, oxygen and water).

Peroxyacetic acid (peracetic acid) is permitted in some countries in slaughterhouses to disinfect poultry meat despite its corrosive properties to steel and other metals.
In addition to its use in food processing, Peroxyacetic acid (peracetic acid) is utilized in the beverage industry for sanitizing equipment and containers used in the production of beverages such as beer, wine, and soft drinks. 
Peroxyacetic acid (peracetic acid) helps to maintain hygienic conditions and prevent contamination during brewing, bottling, and packaging operations.

Peroxyacetic acid (peracetic acid) is applied in dairy processing facilities for cleaning and sanitizing milk processing equipment, storage tanks, and pipelines. 
Peroxyacetic acid (peracetic acid) helps to eliminate bacteria, molds, and yeast that can spoil milk and dairy products, ensuring product quality and safety.
Cooling towers used in HVAC systems and industrial processes are susceptible to microbial growth, biofilm formation, and Legionella contamination. 

Peroxyacetic acid (peracetic acid) is used for disinfecting cooling water and preventing the spread of pathogens, improving the efficiency and safety of cooling tower operations.
Peroxyacetic acid (peracetic acid) solutions are used for wound care and antiseptic purposes. 
Dilute solutions of peracetic acid can be applied topically to disinfect wounds, ulcers, and surgical incisions, helping to prevent infections and promote wound healing.

Dental instruments and equipment require thorough sterilization to prevent the transmission of infectious diseases between patients. 
Peroxyacetic acid (peracetic acid)-based sterilization systems are used in dental clinics and laboratories for the rapid sterilization of dental instruments, ensuring patient safety and infection control.
Peroxyacetic acid (peracetic acid) is employed in the pulp and paper industry for bleaching wood pulp and deinking recycled paper. 

Peroxyacetic acid (peracetic acid) helps to remove lignin, ink, and other impurities from pulp fibers, resulting in high-quality paper products with bright white appearance and improved printability.
Public spaces such as hospitals, schools, public transportation, and recreational facilities require regular disinfection to minimize the spread of infectious diseases. 
Peroxyacetic acid (peracetic acid) fogging or misting systems are used to disinfect large indoor areas quickly and effectively, reducing the risk of illness transmission.

Heating, ventilation, and air conditioning (HVAC) systems can harbor microbial contaminants, allergens, and odors, which can affect indoor air quality. 
Peroxyacetic acid (peracetic acid)-based disinfectants are applied to HVAC components to kill bacteria, mold, and fungi, improving indoor air quality and occupant comfort.
In veterinary medicine, Peroxyacetic acid (peracetic acid) solutions are used for disinfecting animal premises, kennels, cages, and equipment. 

They help to control the spread of infectious diseases among animals and maintain hygienic conditions in veterinary clinics, animal shelters, and farms.
Peroxyacetic acid (peracetic acid) is utilized for environmental decontamination and remediation of contaminated soil, water, and air. 
Peroxyacetic acid (peracetic acid) can degrade organic pollutants, neutralize hazardous chemicals, and mitigate environmental pollution in industrial sites, brownfields, and wastewater treatment plants.

Melting point: -44 °C
Boiling point: 105 °C
Density: 1.19 g/mL at 20 °C
vapor pressure: Low
refractive index: n20/D 1.391
Flash point: 41 °C
storage temp.: 2-8°C
pka: 8.2(at 25℃)
color: Colorless liquid
Odor: Acrid odor
Water Solubility: soluble, >=10 g/100 mL at 19 ºC
Merck: 13,7229
BRN: 1098464
Stability: Unstable - may explode on heating. May react violently with organic materials. Incompatible with strong oxidizing agents, acetic anhydride, alkenes, organics.
LogP: -0.26 at 20℃
Substances Added to Food (formerly EAFUS): PERACETIC ACID
FDA 21 CFR: 173.315
CAS DataBase Reference: 79-21-0(CAS DataBase Reference)
EWG's Food Scores: 4

Peroxyacetic acid (peracetic acid)s should be handled only in small quantities and with extreme care when pure or very concentrated. 
Peroxyacetic acid (peracetic acid), are so unstable that they may explode during distillation, even under reduced pressure
Peroxyacetic acid (peracetic acid) explodes when heated to 110 °C, and the pure compound is extremely shock sensitive. 

Virtually all peracids are strong oxidizing agents and decompose explosively on heating. 
Moreover, most peracids are highly flammable and can accelerate the combustion of other flammable materials if present in a fire. 
Fires involving Peroxyacetic acid (peracetic acid) can be fought with water, dry chemical, or halon extinguishers. 

Containers of peracetic acid heated in a fire may explode.
Reactions involving large quantities of peracids should be carried out behind a safety shield. 
Peroxyacetic acid (peracetic acid) should be used only in areas free of ignition sources and should be stored in tightly sealed containers in areas separate from oxidizable compounds and flammable substances. 

Other commonly available peracids, such as perbenzoic acid and m-chloroperbenzoic acid (MCPBA), are less toxic, less volatile, and more easily handled than Peroxyacetic acid (peracetic acid).
Peroxyacetic acid (peracetic acid) kills microorganisms by oxidation and subsequent disruption of their cell membrane via the hydroxyl radical. 
Because diffusion is slower than the half-life of the radical, it will react with any oxidizable compound in its vicinity. 

Peroxyacetic acid (peracetic acid), also, is not deactivated by catalase and peroxidase enzymes produced by microorganisms. 
Therefore, it can damage virtually all types of macromolecules associated with a microorganism, such as carbohydrates, nucleic acids, lipids, and amino acids. 
The mechanism of oxidation is the transfer of electrons; therefore, the stronger the oxidizer will produce faster and ultimately leads to cell lyse and true microbial death.

Peroxyacetic acid (peracetic acid)s such as peracetic acid are strong oxidizing agents and react exothermically with easily oxidized substrates. 
In some cases the heat of reaction can be sufficient to induce ignition, at which point combustion is accelerated by the presence of the peracid. 
Violent reactions may potentially occur, for example, with ethers, metal chloride solutions, olefins, and some alcohols and ketones. 

Shock-sensitive peroxides may be generated by the action of peracids on these substances as well as on carboxylic anhydrides. 
Some metal ions, including iron, copper, cobalt, chromium, and manganese, may cause runaway peroxide decomposition. 
Peroxyacetic acid (peracetic acid) is also reportedly sensitive to light.

Peroxyacetic acid (peracetic acid) is a mixture of acetic acid (CH3COOH) and hydrogen peroxide (H2O2) in an aqueous solution.
Peroxyacetic acid (peracetic acid) is the principle component of vinegar. 
Hydrogen peroxide has been previously recommended by the NOSB for the National List in processing (synthetic, allowed at Austin, 1995). 

Peroxyacetic acid (peracetic acid) is a common disinfection widely used in the food and beverage market and in the healthcare industry. 
A more powerful oxidizing agent than its chlorine counterparts, Peroxyacetic acid (peracetic acid) has become increasingly popular since it was first registered as an antimicrobial substance in 1985.
As with all disinfectants, monitoring of residuals and dosing is important to ensure that levels are not too high or low. 

However, unlike other common sanitizers, Peroxyacetic acid (peracetic acid) is effective at weakly acidic pH levels and its efficacy is not greatly impacted by temperature.
Peroxyacetic acid (peracetic acid) is described as an efficient “broad spectrum biocidal agent”. 
This means that it will effectively kill the majority of bacteria, including E. coli, Listeria and Salmonella which all cause food poisoning/gastrointestinal illnesses, and pseudomonas which can cause chest and blood infections.

Peroxyacetic acid (peracetic acid) is produced by continuously feeding acetic acid and hydrogen peroxide into an aqueous reaction medium containing a sulfuric acid catalyst. 
The reaction is allowed to continue for up to ten days in order to achieve high yields of product according to the following equation.
Peroxyacetic acid (peracetic acid) is always sold in solution with acetic acid and hydrogen peroxide to maintain the stability of the chemical. 
The concentration of the acid as the active ingredient can vary, and usually depends on its application. 

Additional methods of preparation involve the oxidation of acetaldehyde or alternatively as an end product of the reaction of acetic anhydride, hydrogen peroxide, and sulfuric acid. 
Another method involves the reaction of tetraacetylethylenediamine (TAED) in the presence of an alkaline hydrogen peroxide solution.
Peroxyacetic acid (peracetic acid) is also formed naturally in the environment through a series of photochemical reactions involving formaldehyde and photo-oxidant radicals.

Peroxyacetic acid (peracetic acid), process and production were issued a US and UK patent to FMC Corporation on March 11, 1969. 
The process utilized a reactor tube vessel to blend Acetic anhydride, Hydrogen peroxide, and an Ammonia catalyst to carefully control and create an equilibrium mixture that had unique oxidative biocide properties. 
The Peroxyacetic acid molecule is the one that imparts the microbiocidal activity to the mixture, and its actual concentration is the one that is diluted down for a variety of sanitizer, disinfectant, and sterilant applications in various markets.

To this day, all commercial versions of liquid Peracetic acid concentrates are an equilibrium mixture of these 3 molecules, many times including a stabilizer (ex. Sulfuric acid). 
Peroxyacetic acid (peracetic acid) mixtures can contain from roughly 5% PAA up to 35% PAA with each PAA concentration having a variety of Acetic acid and Peroxide concentrations.
Peroxyacetic acid (peracetic acid), is an organic compound. 

Peroxyacetic acid (peracetic acid) is a colorless liquid with a characteristic pungent odor reminiscent of household vinegar. 
Commercially available Peroxyacetic acid (peracetic acid) products contain an equilibrium of PAA, hydrogen peroxide, acetic acid, and water.
Peroxyacetic acid (peracetic acid) is a powerful antimicrobial agent due to its high oxidizing potential. 

Peroxyacetic acid (peracetic acid) is highly effective against a broad range of microorganisms and can be sporicidal. 
In addition, Peroxyacetic acid (peracetic acid) breaks down in food to safe and environmentally friendly residues (acetic acid and hydrogen peroxide), and, therefore, can be used in non-rinse food contact surface applications. 
Some Peroxyacetic acid (peracetic acid) products are effective against C. difficile spores. 

Peroxyacetic acid (peracetic acid) is generally used only when necessary, due to its strong odor and potential damage to some surfaces.
Peroxyacetic acid (peracetic acid) is a colorless liquid with a strong, pungent acrid odor. 
Used as a bactericide and fungicide, especially in food pr reagent in making caprolactam and glycerol; as an oxidant for preparing epoxy compounds; as a bleaching agent; a sterilizing polymerization catalyst for polyester resins. 

Peroxyacetic acid (peracetic acid) is a liquid that functions as a strong oxidizing agent. 
Peroxyacetic acid (peracetic acid) has an acrid odor and is used as a disinfec Bleaching agent for food starch. 
Peroxyacetic acid (peracetic acid) is a component of antimicrobial washes for poultry carcasses and fruit. 

Peracet known as peroxyacetic acid, or PAA), is a organic compound with the formula CH3CO3H. 
This organic peroxide is a colorless liq characteristic acrid odor reminiscent of acetic acid.
Peroxyacetic acid (peracetic acid) can be highly corrosive. 

Peroxyacetic acid (peracetic acid) can be used as a blea especially for Kraft pulp. 
Peroxyacetic acid (peracetic acid) is used at weakly acidic pH and relatively low temperature. 
Peroxyacetic acid (peracetic acid) is a relative efficient and seagent, and it is often used as an alternative to chlorine dioxide and elemental chlorine in totally chlorine free bleaching sequen Peroxyacetic acid (peracetic acid) is however relatively expensive, and is difficult to store due to its high reactivity.

Peracet weaker acid than the parent acetic acid, with a pKa of 8. 2. 
Peroxyacetic acid (peracetic acid) is an ideal antimicrobial agent due to its high oxidizin Peroxyacetic acid (peracetic acid) is broadly effective against microorganisms and is not deactivated by catalase and peroxidase, the enzymes that hydrogen peroxide. 
Peroxyacetic acid (peracetic acid) also breaks down in food to safe and environmentally friendly residues (acetic acid and hyd and therefore can be used in non-rinse applications. 

Peroxyacetic acid (peracetic acid) can be used over a wide temperature range (0-40 ¬∞C), wide pH range clean-in-place (CIP) processes, in hard water conditions, and is not affected by protein residues. 
Peroxyacetic acid (peracetic acid) has been shown spectic function (PMID: 6180573). 
Peroxyacetic acid (peracetic acid) belongs to the family of Organic Hydroperoxides. 

These are organic compoun hydroperoxide functional group, with the general formula [OaO]2-.
Peroxyacetic acid (peracetic acid) is used mainly in the food industry, where it is applied as a cleanser and as a disinfectant. 
Since the early 1950`s applied for bacteria and fungi removal from fruits and vegetables. 

Peroxyacetic acid (peracetic acid) was also used for the disinfection of recicled rinsing wate Nowadays peracetic acid is applied for the disinfection of medical supplies and to prevent bio film formation in pulp industries during water purification as a disinfectant and for plumming disinfection.
Peroxyacetic acid (peracetic acid) is suitable for cooling tower water disinfection; it affectively prevents bio film formation and controls Legionella

Peroxyacetic acid (peracetic acid) as a disinfectant oxidizes the outer cell membranes of microorganisms. 
The oxidation mechanism consists of el When a stronger oxidant is used, the electrons are transferred to the microorganism much faster, causing the microorganism rapidly.
Peroxyacetic acid (peracetic acid) can be applied for the deactivation of a large variety of pathogenic microorganisms. 

Peroxyacetic acid (peracetic acid) also deactivates viruses a Peracetic acid activity is hardly influenced by organic compounds that are present in the water. However, pH and temperature peractetic acid activity. 
Peroxyacetic acid (peracetic acid) is more effective when the pH value is 7 than at a pH range between 8 and 9. 

At a tempe and a pH value of 7, five times more Peroxyacetic acid (peracetic acid) is required to affectively deactivate pathogens than at a pH value of 7 and a 35 °C.
When cooling tower water is tapped from a river or lake, and must be discharged into the same water body after it has been u certain discharge demands. Aditionally, the water temperature may not be too high, because warm water has a low oxygen copromotes algal growth. 

This can cause fish mortality and a decrease in water biodiversity.
Peroxyacetic acid (peracetic acid) has outstanding disinfectant properties. 
Peroxyacetic acid (peracetic acid) is effective against bacteria, yeasts, molds and virus. 

The reason for trapid antimicrobial effects of Peroxyacetic acid (peracetic acid) is the specific capability to penetrate through the cell membrane. 
In the cell, peracirreversibly disrupts the enzyme system, which in turn leads to destruction of the microorganism. 
Peroxyacetic acid (peracetic acid) is used in food retail establishments such as supermarkets and grocery stores for disinfecting food contact surfaces, display cases, and food processing equipment. 

Peroxyacetic acid (peracetic acid) helps to prevent cross-contamination and ensure the safety and quality of perishable foods.
During emergency situations such as natural disasters or water contamination events, Peroxyacetic acid (peracetic acid) can be used for emergency water disinfection. 
Peroxyacetic acid (peracetic acid) effectively kills pathogens in drinking water sources, providing a rapid and reliable method for ensuring safe drinking water supplies in crisis situations.

Laboratories in various fields, including chemistry, biology, and medical research, utilize Peroxyacetic acid (peracetic acid) for the sterilization of laboratory glassware, equipment, and instruments. 
Its broad-spectrum antimicrobial activity and compatibility with heat-sensitive materials make it a valuable sterilization agent in laboratory settings.
Pharmaceutical manufacturing facilities utilize peracetic acid for disinfecting cleanrooms, production equipment, and packaging materials. 

Peroxyacetic acid (peracetic acid) helps to maintain aseptic conditions during drug manufacturing processes, ensuring product quality and compliance with regulatory standards.
Peroxyacetic acid (peracetic acid) is commonly used in breweries and beverage production facilities for disinfecting brewing equipment, fermentation tanks, and beer kegs. 
Peroxyacetic acid (peracetic acid) helps to prevent contamination by spoilage organisms and ensures the quality and stability of brewed beverages.

Cosmetic manufacturing facilities use Peroxyacetic acid (peracetic acid) for disinfecting production equipment, mixing vessels, and packaging materials. 
Peroxyacetic acid (peracetic acid) helps to maintain hygienic conditions during the production of cosmetics, skincare products, and personal care items.
Peroxyacetic acid (peracetic acid) is employed in animal production facilities such as poultry farms, swine operations, and aquaculture facilities for biosecurity and disease control. 

Peroxyacetic acid (peracetic acid) helps to disinfect animal housing, equipment, and transportation vehicles, reducing the risk of disease transmission and improving animal health.
Peroxyacetic acid (peracetic acid)-based hand sanitizers provide an alternative to traditional alcohol-based hand sanitizers, especially in settings where water is not readily available. 
These sanitizers effectively kill germs on the hands and are used in healthcare facilities, food service establishments, and public settings.

Peroxyacetic acid (peracetic acid) solutions are used for preserving fresh produce during storage and transportation. 
They help to inhibit the growth of spoilage microorganisms and extend the shelf life of fruits, vegetables, and cut flowers, reducing food waste and ensuring product quality.
Hotels, restaurants, and catering services utilize peracetic acid for disinfecting kitchen surfaces, utensils, and food preparation areas. 

Peroxyacetic acid (peracetic acid) helps to maintain cleanliness and hygiene in food service establishments, preventing foodborne illnesses and ensuring guest satisfaction.
Peroxyacetic acid (peracetic acid)-based disinfectants are used for disinfecting cruise ship cabins, aircraft cabins, and other confined spaces where passengers and crew members congregate. 
They help to control the spread of infectious diseases and maintain a healthy environment for travelers.

Uses Of Peroxyacetic acid (peracetic acid)
This microprocessor-controlled, low-temperature sterilization agent is a strong oxidizing disinfectant against a wide spectrum of antimicrobial activity. 
Peroxyacetic acid (peracetic acid) is active against many microorganisms, such as gram-positive and -negative bacteria, fungi, spores, and yeast. 
This ideal antimicrobial agent is primarily used in food processing and handling as a sanitizer for food contact surfaces.

Peroxyacetic acid (peracetic acid) is also used to disinfect medical supplies and prevent biofilm formation in pulp industries. 
Peroxyacetic acid (peracetic acid) can be applied during water purification as a disinfectant and for plumbing disinfection. 
Peroxyacetic acid (peracetic acid) is suitable for disinfecting cooling tower water and effectively prevents biofilm formation and controls Legionella bacteria.

Environmentally friendly biocide; disinfectant in the food and beverage industry; bleaching agent for textiles and paper. Oxidizing agent in organic synthesis.
Fungicide, Herbicide, Nematicide, Rodenticide, Microbiocide: Peroxyacetic acid (peracetic acid) is used as bactericide and fungicide, especially in food processing, a reagent in making caprolactam and glycerol; an oxidant for preparing epoxy compounds; a bleaching agent; a sterilizing agent; and a polymerization catalyst for polyester resins. 

Not approved for use in EU countries. 
Registered for use in the U.S. and Canada.
The United States Environmental Protection Agency first registered Peroxyacetic acid (peracetic acid) as an antimicrobial in 1986 for indoor use on hard surfaces.

Use sites include agricultural premises, food establishments, medical facilities, and home bathrooms. 
Peroxyacetic acid (peracetic acid) is also registered for use in dairy and cheese processing plants, on food processing equipment, and in pasteurizers in breweries, wineries, and beverage plants.
Peroxyacetic acid (peracetic acid) is also applied for the disinfection of medical supplies, to prevent biofilm formation in pulp industries, and as a water purifier and disinfectant. 

Peroxyacetic acid (peracetic acid) can be used as a cooling tower water disinfectant, where it prevents biofilm formation and effectively controls Legionella bacteria. 
Nu-Cidex is the trade name for a brand of antimicrobial Peroxyacetic acid (peracetic acid).
In the European Union, Peroxyacetic acid (peracetic acid) was reported by the EFSA after submission in 2013 by the US Department of Agriculture.

Decontamination kits for cleaning fentanyl analogues from surfaces (as used by many police forces, amongst others) often contain solid peracetyl borate, which mixes with water to produce peracetic acid.
The organic Peroxyacetic acid (peracetic acid) is used as a sustainable biocide for aseptic packaging of food and beverages, in cosmetics and for hair bleaching, for environmentally friendly water and wastewater treatment, for smart sustainable aquaculture solutions, for disinfection in agriculture, for chemical synthesis, for sterilization in hospital hygiene or for cleaning and disinfection of laundry and textiles.

Using solutions containing Peroxyacetic acid (peracetic acid) to reduce contamination from pathogens on poultry carcasses and meat would not pose toxicity concerns, EFSA’s experts say. 
Some treatment applications are more effective than others, for example dipping in baths is more effective than spraying. 
EFSA’s experts also conclude that it is unlikely that the use of Peroxyacetic acid (peracetic acid) would lead to the emergence of resistance to antimicrobials and reduced susceptibility to biocides. 

There are no concerns for environmental risks of all the components of the solution except for HEDP. 
Its release from a poultry plant into the environment is not always considered safe.
Peroxyacetic acid (peracetic acid) is used in the following products: washing & cleaning products, biocides (e.g. disinfectants, pest control products) and laboratory chemicals.

Peroxyacetic acid (peracetic acid) is used in the following areas: health services and scientific research and development.
Peroxyacetic acid (peracetic acid) is used for the manufacture of: textile, leather or fur.
Other release to the environment of Peroxyacetic acid (peracetic acid) is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters).

Peroxyacetic acid (peracetic acid) is used in the following products: washing & cleaning products, textile treatment products and dyes, biocides (e.g. disinfectants, pest control products), paper chemicals and dyes and water treatment chemicals.
Release to the environment of Peroxyacetic acid (peracetic acid) can occur from industrial use: formulation of mixtures.
Peroxyacetic acid (peracetic acid) is used in the following products: washing & cleaning products, paper chemicals and dyes, textile treatment products and dyes and perfumes and fragrances.

Peroxyacetic acid (peracetic acid) has an industrial use resulting in manufacture of another substance (use of intermediates).
Peroxyacetic acid (peracetic acid) is used in the following areas: scientific research and development and health services.
Peroxyacetic acid (peracetic acid) is used for the manufacture of: textile, leather or fur, chemicals, pulp, paper and paper products and food products.

Release to the environment of Peroxyacetic acid (peracetic acid) can occur from industrial use: as processing aid and in processing aids at industrial sites.
Peroxyacetic acid (peracetic acid) is a peroxy acid that is commonly used as an excellent oxidizing agent in organic synthesis. 
Peroxyacetic acid (peracetic acid) is also used as a bleaching and sterilizing agent.

Peroxyacetic acid (peracetic acid) can be used as an oxidant for the selective epoxidation of aliphatic terminal alkenes in the presence of manganese(II) perchlorate as the catalyst at ambient temperature. 
Peroxyacetic acid (peracetic acid) is also used to oxidize sulfides, selenides, and amines.
Initially, Peroxyacetic acid (peracetic acid) was utilized in bleaching applications for paper pulp.  

While it can still be utilized for this application, it is now currently utilized for ware wash bleaching applications. 
In fact, Peroxyacetic acid (peracetic acid) can be generated in situ in some laundry detergents, in ware wash, and other generator applications without the above process originally patented by FMC Corp years ago.
Peroxyacetic acid (peracetic acid) is widely used to sterilize medical, surgical, and dental equipment. 

The disinfectant has been the top choice for medical equipment sterilization after an automated sterilizing machine was introduced in 1988.
Eco-friendly yet reliable to kill microbiomes, Peroxyacetic acid (peracetic acid) is one of the most popular general-purpose hard surface disinfectants. 
Food processing equipment can be washed with Peroxyacetic acid (peracetic acid), which is proven for its efficacy as a no-rinse sanitizer. 

Peroxyacetic acid (peracetic acid) clears bacteria and slim deposits in water treatment plants, pulp factories, and food-grade liquid processing centers.
Decontamination processes at breweries, hatcheries, animal shelters, and veterinary hospitals use Peroxyacetic acid (peracetic acid) to eliminate any chance of infection. 
With increasing coronavirus cases, the acid is used to disinfect surfaces in multiple areas to keep the risk of infection at bay.

Peroxyacetic acid (peracetic acid) is widely used as a disinfectant and sterilizing agent in healthcare facilities, laboratories, pharmaceutical manufacturing, and food processing industries. 
Peroxyacetic acid (peracetic acid) effectively kills a broad spectrum of microorganisms, including bacteria, viruses, fungi, and spores, making it essential for maintaining hygienic conditions and preventing the spread of infections.
In the food and beverage industry, peracetic acid is utilized for sanitizing food contact surfaces, equipment, and packaging materials. 

Peroxyacetic acid (peracetic acid) helps to control microbial contamination and extend the shelf life of perishable foods, ensuring food safety and quality throughout the production, processing, and packaging stages.
Peroxyacetic acid (peracetic acid) is used in municipal water treatment plants, swimming pools, and recreational water facilities as a disinfectant and oxidizing agent. 
Peroxyacetic acid (peracetic acid) helps to eliminate pathogens, algae, and organic contaminants in water systems, ensuring safe and clean water for drinking, recreational activities, and industrial processes.

Veterinary clinics, animal shelters, and livestock facilities use peracetic acid for disinfecting animal premises, equipment, and transportation vehicles. 
It helps to control the spread of infectious diseases among animals and maintain biosecurity in agricultural settings, improving animal health and productivity.
Peroxyacetic acid (peracetic acid)-based sterilization systems are employed in dental clinics and laboratories for the rapid sterilization of dental instruments and equipment. 

They provide an effective and reliable method for ensuring patient safety and infection control in dental practice settings.
Peroxyacetic acid (peracetic acid) solutions are used for washing fruits and vegetables in food processing facilities and commercial kitchens. 
They help to remove pesticides, waxes, and microbial contaminants from produce, enhancing food safety and meeting regulatory standards for food hygiene.

In the pulp and paper industry, Peroxyacetic acid (peracetic acid) is utilized for bleaching wood pulp and deinking recycled paper. 
Peroxyacetic acid (peracetic acid) helps to remove lignin, ink, and other impurities from pulp fibers, resulting in high-quality paper products with bright white appearance and improved printability.
Peroxyacetic acid (peracetic acid)-based cleaning agents are used for industrial cleaning and sanitization in manufacturing plants, breweries, wineries, and dairy processing facilities. 

They help to remove soils, residues, and microbial contaminants from surfaces and equipment, ensuring compliance with hygiene standards and regulatory requirements.
During emergency situations such as natural disasters or water contamination events, peracetic acid can be used for emergency water disinfection. 
Peroxyacetic acid (peracetic acid) provides a rapid and effective method for purifying drinking water sources and preventing the spread of waterborne diseases in crisis situations.

Peroxyacetic acid (peracetic acid) is employed for environmental decontamination and remediation of contaminated soil, groundwater, and air. 
Peroxyacetic acid (peracetic acid) helps to degrade organic pollutants, neutralize hazardous chemicals, and mitigate environmental pollution in industrial sites, brownfields, and wastewater treatment plants.

Safety Profile Of Peroxyacetic acid (peracetic acid):
Poison by ingestion. 
Moderately toxic by inhalation and skin contact. 
Peroxyacetic acid (peracetic acid) a corrosive eye, sktn, and mucous membrane irritant. 

Questionable carcinogen with experimental tumorigenic data by skin contact. 
Severe explosion hazard when exposed to heat or by spontaneous chemical reaction. 
Explodes violently at 1 10°C. 

A powerful oxidizing agent. 
Explosive reaction with acetic anhydride, 5-p-chlorophenyl-2,2-dimethyl-3hexanone. 
Violent reaction with ether solvents (e.g., tetrahydrofuran, diethyl ether), metal chloride solutions (e.g., calcium chloride, potassium chloride, sodium chloride), olefins, organic matter. 

Dangerous; keep away from combustible materials. 
When heated to decomposition it emits acrid smoke and irritating fumes. 

To fight fire, use water, foam, CO2. 
Peroxyacetic acid (peracetic acid) is used as a polymerization initiator, curing agent, and cross-linhng agent. 

Health Hazard Of Peroxyacetic acid (peracetic acid):
Peroxyacetic acid (peracetic acid) is a severe irritant to theskin and eyes. 
It can cause severe acid burns.
Irritation from 1 mg was severe on rabbits’eyes. 

Its toxicity is low. 
The toxicologicalroutes of entry to the body are inhalation,ingestion, and skin contact. 
The toxicity dataare as follows (NIOSH 1986):LC50 inhalation (rats): 450 mg/m3

Its toxicity in humans should be very low,and a health hazard may arise only fromits severe irritant action. 
Studies on miceshowed that it caused skin tumors at the siteof application. 
Its carcinogenicity on humansis not reported. 
No exposure limit is set forperoxyacetic acid in air.

The acute toxicity of peracetic acid is low. 
However, peracids are extremely irritating to the skin, eyes, and respiratory tract. 
Skin or eye contact with the 40% solution in acetic acid can cause serious burns. 

Inhalation of high concentrations of mists of peracetic acid solutions can lead to burning sensations, coughing, wheezing, and shortness of breath.
Peroxyacetic acid (peracetic acid) has not been found to be carcinogenic or to show reproductive or developmental toxicity in humans. 
There is some evidence that this compound is a weak carcinogen from animal studies (mice).

Data on other peracids suggest Peroxyacetic acid (peracetic acid) may show the worst chronic and acute toxicity of this class of compounds. 
Other commonly available peracids, such as Peroxyacetic acid (peracetic acid) and m-chloroperbenzoic acid (MCPBA) are less toxic, less volatile, and more easily handled than the parent substance.

Fire Hazard Of Peroxyacetic acid (peracetic acid):
Peroxyacetic acid (peracetic acid) explodes when heated to 110 °C, and the pure compound is extremely shock sensitive. 
Virtually all peracids are strong oxidizing agents and decompose explosively on heating. 
Moreover, most peracids are highly flammable and can accelerate the combustion of other flammable materials if present in a fire. 

Fires involving Peroxyacetic acid (peracetic acid) can be fought with water, dry chemical, or halon extinguishers. 
Containers of Peroxyacetic acid (peracetic acid) heated in a fire may explode.
Decomposes violently at 230F. 

When heated to decomposition, Peroxyacetic acid (peracetic acid) emits acrid smoke and fumes. 
Runoff to sewer may create a fire or explosion hazard. 
Isolate from other stored material, particularly accelerators, oxidizers, and organic or flammable materials.