ACETIC ACID E 260

Acetic Acid E 260 is a simple monocarboxylic acid with a characteristic pungent vinegar-like odor and complete miscibility with water.
Acetic Acid E 260 functions as an acidulant, acidity regulator, preservative-supporting ingredient, curing and pickling agent, flavoring agent, solvent, chemical intermediate, and pH-control agent.
Acetic Acid E 260 is widely used in food processing, beverages, sauces, pickles, bakery products, dairy products, meat processing, chemical manufacturing, coatings, adhesives, pharmaceuticals, textiles, cleaning products, and laboratory applications.

CAS Number: 64-19-7
EC Number: 200-580-7
Molecular Formula: C2H4O2
Molecular Weight: 60.05 g/mol

Synonyms: Acetic Acid, Acetic Acid E 260, Acetic Acid E260, E 260, E260, Ethanoic Acid, Glacial Acetic Acid, Acetic Acid Glacial, Vinegar Acid, Acetyl Hydroxide, Ethylic Acid, Methanecarboxylic Acid, Methylformic Acid, Acide Acétique, Acido Acetico, Essigsäure, Ethanoic Acid Monomer, Acetic Acid Anhydrous, Anhydrous Acetic Acid, Concentrated Acetic Acid, Dilute Acetic Acid, Aqueous Acetic Acid, Food-Grade Acetic Acid, Pharmaceutical-Grade Acetic Acid, Technical-Grade Acetic Acid, Industrial Acetic Acid, Synthetic Acetic Acid, Fermentation-Derived Acetic Acid, Natural Acetic Acid, Vinegar Component, Food Acidulant E 260, Food Acidity Regulator E 260, Pickling Acid, Curing Acid, Acetate Precursor, Carboxylic Acid C2, CH3COOH, C2H4O2, FEMA 2006, JECFA 81, UN 2789, UN 2790, NSC 132953

APPLICATIONS

Acetic Acid E 260 is used as an acidulant in food products.
Acetic Acid E 260 is used to provide a clean and recognizable sour taste.
Acetic Acid E 260 is used to balance sweetness, saltiness, and richness in formulated foods.
Acetic Acid E 260 is used to establish product acidity according to sensory and preservation requirements.

Acetic Acid E 260 is used as an acidity regulator.
Acetic Acid E 260 is used to lower the pH of aqueous food systems.
Acetic Acid E 260 is used to maintain a desired acidity range during processing and storage.
Acetic Acid E 260 is used to improve consistency between production batches.

Acetic Acid E 260 is used as a curing and pickling agent.
Acetic Acid E 260 is used in pickling brines for vegetables.
Acetic Acid E 260 is used to provide rapid and uniform acidification of prepared foods.
Acetic Acid E 260 is used to support preservation systems based on acidity, salt, heat, and hygienic processing.

Acetic Acid E 260 is used in pickled cucumbers.
Acetic Acid E 260 is used in pickled onions.
Acetic Acid E 260 is used in mixed vegetable pickles.
Acetic Acid E 260 is used in pickled peppers and similar acidified vegetables.

Acetic Acid E 260 is used in olive-processing brines.
Acetic Acid E 260 is used in marinated vegetable preparations.
Acetic Acid E 260 is used in antipasti and vegetable appetizer products.
Acetic Acid E 260 is used to adjust the final acidity of packed vegetable products.

Acetic Acid E 260 is used in canned vegetables.
Acetic Acid E 260 is used to reduce the pH before thermal processing.
Acetic Acid E 260 is used to support validated thermal preservation processes.
Acetic Acid E 260 is used to improve the uniformity of acidity throughout packed foods.

Acetic Acid E 260 is used in tomato sauces.
Acetic Acid E 260 is used in ketchup and tomato-based condiments.
Acetic Acid E 260 is used in tomato paste preparations requiring acidity adjustment.
Acetic Acid E 260 is used to balance sweetness and cooked tomato flavor.

Acetic Acid E 260 is used in mustard products.
Acetic Acid E 260 is used in horseradish sauces.
Acetic Acid E 260 is used in chutneys and relishes.
Acetic Acid E 260 is used in condiment formulations requiring a sharp acidic flavor.

Acetic Acid E 260 is used in mayonnaise.
Acetic Acid E 260 is used in salad dressings.
Acetic Acid E 260 is used in emulsified sauces.
Acetic Acid E 260 is used to establish a pH compatible with flavor and microbiological stability.

Acetic Acid E 260 is used in barbecue sauces.
Acetic Acid E 260 is used in hot sauces.
Acetic Acid E 260 is used in dipping sauces.
Acetic Acid E 260 is used in savory table sauces requiring controlled acidity.

Acetic Acid E 260 is used in marinades.
Acetic Acid E 260 is used in meat and poultry marinades.
Acetic Acid E 260 is used to develop a tangy flavor in prepared proteins.
Acetic Acid E 260 is used to modify surface pH during marination.

Acetic Acid E 260 is used in processed meat products.
Acetic Acid E 260 is used as an acidity-control ingredient in cured meat formulations.
Acetic Acid E 260 is used in meat products after protein-functionality and sensory testing.
Acetic Acid E 260 is used in conjunction with refrigeration, salt, curing agents, and hygienic processing.

Acetic Acid E 260 is used in sausage formulations.
Acetic Acid E 260 is used in cooked and fermented meat products where permitted.
Acetic Acid E 260 is used in meat snacks and formed meat products.
Acetic Acid E 260 is used to adjust acidity without introducing nonvolatile mineral-acid residues.

Acetic Acid E 260 is used in poultry products.
Acetic Acid E 260 is used in prepared chicken and turkey formulations.
Acetic Acid E 260 is used in poultry brines and surface-treatment systems.
Acetic Acid E 260 is used after evaluating flavor, texture, yield, and regulatory requirements.

Acetic Acid E 260 is used in seafood marinades.
Acetic Acid E 260 is used in pickled fish.
Acetic Acid E 260 is used in prepared shellfish products.
Acetic Acid E 260 is used to regulate acidity in chilled and shelf-stable seafood preparations.

Acetic Acid E 260 is used in bakery products.
Acetic Acid E 260 is used to regulate dough and batter pH.
Acetic Acid E 260 is used to modify flavor development in selected baked goods.
Acetic Acid E 260 is used at controlled levels to avoid undesirable gluten or leavening effects.

Acetic Acid E 260 is used in bread formulations.
Acetic Acid E 260 is used in sour-flavored bakery products.
Acetic Acid E 260 is used in tortillas and flatbreads.
Acetic Acid E 260 is used to support mold-control systems in compatible bakery products.

Acetic Acid E 260 is used in cakes and pastries at formulation-specific concentrations.
Acetic Acid E 260 is used in bakery fillings.
Acetic Acid E 260 is used in fruit preparations for baked products.
Acetic Acid E 260 is used to regulate pectin behavior and filling stability.

Acetic Acid E 260 is used in cheese processing.
Acetic Acid E 260 is used to adjust milk or cheese-system acidity.
Acetic Acid E 260 is used in dairy-product analogues.
Acetic Acid E 260 is used after evaluating protein coagulation, texture, and flavor.

Acetic Acid E 260 is used in fresh cheese and curd production.
Acetic Acid E 260 is used to promote acid precipitation of milk proteins.
Acetic Acid E 260 is used in whey-protein recovery systems.
Acetic Acid E 260 is used where direct acidification is preferred over complete fermentation.

Acetic Acid E 260 is used in plant-based cheese alternatives.
Acetic Acid E 260 is used to acidify soy-, pea-, oat-, and nut-based protein systems.
Acetic Acid E 260 is used to support gelation and flavor development.
Acetic Acid E 260 is used after protein-specific formulation testing.

Acetic Acid E 260 is used in fats and oils where permitted.
Acetic Acid E 260 is used to adjust acidity in emulsified fat products.
Acetic Acid E 260 is used in specialty spreads and oil-based sauces.
Acetic Acid E 260 is used after evaluating oxidation, emulsion stability, and sensory properties.

Acetic Acid E 260 is used in gravies.
Acetic Acid E 260 is used in cooking sauces.
Acetic Acid E 260 is used in prepared meal sauces.
Acetic Acid E 260 is used to enhance flavor and regulate finished-product pH.

Acetic Acid E 260 is used in chewing gum.
Acetic Acid E 260 is used as a flavoring and acidity-modifying ingredient.
Acetic Acid E 260 is used in sour-flavored confectionery systems.
Acetic Acid E 260 is used at controlled concentrations to avoid excessive volatility and irritation.

Acetic Acid E 260 is used in confectionery products.
Acetic Acid E 260 is used in hard candy and soft candy formulations.
Acetic Acid E 260 is used in sour coatings and fillings.
Acetic Acid E 260 is used where a volatile acidic flavor profile is desired.

Acetic Acid E 260 is used in beverages.
Acetic Acid E 260 is used to adjust the acidity of flavored drinks.
Acetic Acid E 260 is used in vegetable- and fruit-based beverages.
Acetic Acid E 260 is used to provide a vinegar-like or savory acidic note.

Acetic Acid E 260 is used in drinking-vinegar products.
Acetic Acid E 260 is used in shrub-style beverage formulations.
Acetic Acid E 260 is used in savory beverage concentrates.
Acetic Acid E 260 is used after flavor, dilution, and regulatory evaluation.

Acetic Acid E 260 is used in beverage syrups.
Acetic Acid E 260 is used in concentrated flavor preparations.
Acetic Acid E 260 is used in powdered or liquid beverage bases.
Acetic Acid E 260 is used to adjust acidity before final dilution.

Acetic Acid E 260 is used as a flavoring agent.
Acetic Acid E 260 is used as a flavoring adjuvant.
Acetic Acid E 260 is used to reproduce vinegar-like sensory characteristics.
Acetic Acid E 260 is used to enhance savory, fermented, and pickled flavor profiles.

Acetic Acid E 260 is used as a flavor enhancer.
Acetic Acid E 260 is used to increase the perception of saltiness and brightness in suitable foods.
Acetic Acid E 260 is used to reduce flavor flatness in shelf-stable formulations.
Acetic Acid E 260 is used after sensory testing determines an acceptable concentration.

Acetic Acid E 260 is used as a solvent and vehicle in permitted food-processing applications.
Acetic Acid E 260 is used to dissolve or carry compatible flavoring ingredients.
Acetic Acid E 260 is used in aqueous flavor concentrates.
Acetic Acid E 260 is used only when its acidity is compatible with the carried ingredient.

Acetic Acid E 260 is used in food-processing boiler-water additives under applicable requirements.
Acetic Acid E 260 is used to adjust boiler-water treatment chemistry in authorized applications.
Acetic Acid E 260 is used at levels consistent with good manufacturing practice.
Acetic Acid E 260 is used only where food-contact steam requirements are satisfied.

Acetic Acid E 260 is used in food-equipment descaling products formulated for professional use.
Acetic Acid E 260 is used to dissolve carbonate mineral deposits.
Acetic Acid E 260 is used to remove alkaline residues from compatible processing equipment.
Acetic Acid E 260 is used only after confirming equipment-material compatibility and complete rinsing.

Acetic Acid E 260 is used to prepare acetate salts.
Acetic Acid E 260 is used in the manufacture of sodium acetate.
Acetic Acid E 260 is used in the manufacture of potassium acetate.
Acetic Acid E 260 is used in the manufacture of calcium, magnesium, ammonium, and metal acetates.

Acetic Acid E 260 is used as a major chemical intermediate.
Acetic Acid E 260 is used to introduce acetyl and acetate functionality into chemical products.
Acetic Acid E 260 is used in esterification and neutralization reactions.
Acetic Acid E 260 is used in industrial synthesis under controlled corrosion and ventilation conditions.

Acetic Acid E 260 is used in the manufacture of vinyl acetate monomer.
Acetic Acid E 260 is used with ethylene and oxygen in catalytic vinyl acetate production.
Acetic Acid E 260 is used to manufacture polyvinyl acetate raw materials indirectly.
Acetic Acid E 260 is used in supply chains serving adhesives, coatings, paper, and polymer emulsions.

Acetic Acid E 260 is used in the manufacture of acetic anhydride.
Acetic Acid E 260 is used as a feedstock in acetylating-agent production.
Acetic Acid E 260 is used in chemical processes serving cellulose acetate and pharmaceutical manufacture.
Acetic Acid E 260 is used under closed industrial processing conditions.

Acetic Acid E 260 is used to manufacture ethyl acetate.
Acetic Acid E 260 is used to manufacture butyl acetate.
Acetic Acid E 260 is used to manufacture propyl and isopropyl acetates.
Acetic Acid E 260 is used in ester products serving coatings, inks, adhesives, and cleaning formulations.

Acetic Acid E 260 is used to manufacture cellulose acetate raw materials indirectly.
Acetic Acid E 260 is used in acetylation-related chemical processes.
Acetic Acid E 260 is used in supply chains for fibers, films, filters, and plastics.
Acetic Acid E 260 is used after appropriate recovery and purification within industrial systems.

Acetic Acid E 260 is used as a solvent in purified terephthalic acid production.
Acetic Acid E 260 is used as a reaction medium in selected oxidation processes.
Acetic Acid E 260 is used in systems containing controlled catalyst and promoter packages.
Acetic Acid E 260 is used with industrial solvent-recovery operations.

Acetic Acid E 260 is used in coating manufacture.
Acetic Acid E 260 is used to adjust acidity in selected resin and additive systems.
Acetic Acid E 260 is used as a precursor for coating solvents and polymers.
Acetic Acid E 260 is used after evaluating corrosion, odor, and formulation compatibility.

Acetic Acid E 260 is used in adhesive manufacturing.
Acetic Acid E 260 is used in polyvinyl-acetate-related chemical supply chains.
Acetic Acid E 260 is used for pH adjustment in compatible water-based adhesive systems.
Acetic Acid E 260 is used at concentrations that do not destabilize the polymer dispersion.

Acetic Acid E 260 is used in printing-ink manufacture.
Acetic Acid E 260 is used as a pH-adjusting component in selected ink formulations.
Acetic Acid E 260 is used as a precursor for acetate solvents.
Acetic Acid E 260 is used after evaluating drying, odor, corrosion, and print performance.

Acetic Acid E 260 is used in textile processing.
Acetic Acid E 260 is used to neutralize alkaline textile-treatment baths.
Acetic Acid E 260 is used to control pH during dyeing and finishing.
Acetic Acid E 260 is used after evaluating fiber, dye, and equipment compatibility.

Acetic Acid E 260 is used in wool and synthetic-fiber dyeing.
Acetic Acid E 260 is used to create acidic dye-bath conditions.
Acetic Acid E 260 is used to improve control of dye exhaustion.
Acetic Acid E 260 is used under monitored pH and temperature conditions.

Acetic Acid E 260 is used in leather processing.
Acetic Acid E 260 is used to regulate acidity in selected tanning and finishing operations.
Acetic Acid E 260 is used to neutralize residual alkalinity.
Acetic Acid E 260 is used after evaluating leather color, feel, and structural properties.

Acetic Acid E 260 is used in rubber and latex processing.
Acetic Acid E 260 is used to coagulate natural rubber latex.
Acetic Acid E 260 is used to regulate pH in compatible elastomer-processing systems.
Acetic Acid E 260 is used after evaluating residual acidity and final rubber properties.

Acetic Acid E 260 is used in pharmaceutical manufacturing.
Acetic Acid E 260 is used as a pH-adjusting agent in suitable pharmaceutical processes.
Acetic Acid E 260 is used as a chemical intermediate for active ingredients and excipients.
Acetic Acid E 260 is used only in grades and concentrations meeting pharmaceutical requirements.

Acetic Acid E 260 is used in laboratory buffer preparation.
Acetic Acid E 260 is used with acetate salts to prepare acetate buffers.
Acetic Acid E 260 is used to maintain moderately acidic analytical conditions.
Acetic Acid E 260 is used in biochemical, pharmaceutical, and chemical testing.

Acetic Acid E 260 is used in chromatography.
Acetic Acid E 260 is used as a mobile-phase modifier in compatible methods.
Acetic Acid E 260 is used to adjust pH in liquid-chromatography separations.
Acetic Acid E 260 is used in analytical grades matched to instrument and method requirements.

Acetic Acid E 260 is used in histology and biological laboratories.
Acetic Acid E 260 is used in selected fixing, staining, and differentiation solutions.
Acetic Acid E 260 is used to prepare laboratory reagents.
Acetic Acid E 260 is used under method-specific safety and quality controls.

Acetic Acid E 260 is used in household and institutional cleaning formulations.
Acetic Acid E 260 is used to remove carbonate scale and alkaline residues.
Acetic Acid E 260 is used in bathroom, kitchen, and hard-surface cleaners.
Acetic Acid E 260 is used only after testing compatibility with metals, stone, grout, and coatings.

Acetic Acid E 260 is used in industrial descaling.
Acetic Acid E 260 is used to dissolve mineral deposits from compatible equipment.
Acetic Acid E 260 is used in heat exchangers, tanks, and process lines after engineering assessment.
Acetic Acid E 260 is used with corrosion control, ventilation, and neutralization procedures.

Acetic Acid E 260 is used in water-treatment formulations.
Acetic Acid E 260 is used to adjust the pH of alkaline process water.
Acetic Acid E 260 is used in wastewater neutralization.
Acetic Acid E 260 is used under automated dosing and pH-monitoring conditions.

Acetic Acid E 260 is used as a carbon source in selected biological wastewater-treatment processes.
Acetic Acid E 260 is used to support denitrifying microorganisms.
Acetic Acid E 260 is used in treatment plants after nutrient-demand calculations.
Acetic Acid E 260 is used with controlled storage, metering, and worker-protection systems.

Acetic Acid E 260 is used in oilfield and petroleum-processing applications.
Acetic Acid E 260 is used in selected well-treatment and stimulation fluids.
Acetic Acid E 260 is used to dissolve or control alkaline mineral deposits.
Acetic Acid E 260 is used after corrosion, formation, and process compatibility evaluation.

Acetic Acid E 260 is used in chemical research.
Acetic Acid E 260 is used as a reagent in acid-catalyzed and neutralization reactions.
Acetic Acid E 260 is used as a solvent or cosolvent in compatible laboratory processes.
Acetic Acid E 260 is used at a purity selected for the intended analytical or synthetic work.

Acetic Acid E 260 is used in commercial food and industrial products after concentration verification.
Acetic Acid E 260 is used according to the distinction between dilute, concentrated, and glacial grades.
Acetic Acid E 260 is used after compatibility with equipment, packaging, and other ingredients has been confirmed.
Acetic Acid E 260 is used according to current technical, safety, food, and regulatory documentation.

DESCRIPTION

Acetic Acid E 260 is the simplest carboxylic acid after formic acid.
Acetic Acid E 260 contains one methyl group and one carboxylic-acid group.
Acetic Acid E 260 is chemically identified by the IUPAC name ethanoic acid.
Acetic Acid E 260 has the condensed structural formula CH3COOH.

Acetic Acid E 260 has the molecular formula C2H4O2.
Acetic Acid E 260 has a molecular weight of approximately 60.05 g/mol.
Acetic Acid E 260 has CAS number 64-19-7.
Acetic Acid E 260 has EC number 200-580-7.

Acetic Acid E 260 is generally supplied as a clear and colorless liquid.
Acetic Acid E 260 has a strong, pungent, sour, vinegar-like odor.
Acetic Acid E 260 is normally supplied as concentrated acid or as an aqueous solution.
Acetic Acid E 260 food-grade and industrial products differ in assay and impurity specifications.

Acetic Acid E 260 is called glacial acetic acid when it is essentially anhydrous.
Acetic Acid E 260 pure material freezes at approximately 16.6°C.
Acetic Acid E 260 can therefore solidify in cool storage conditions.
Acetic Acid E 260 frozen material should be thawed through controlled indirect warming.

Acetic Acid E 260 boils at approximately 118°C under normal atmospheric pressure.
Acetic Acid E 260 has a density near 1.049 g/mL for concentrated material.
Acetic Acid E 260 has a vapor pressure near 11 mmHg at approximately 20°C.
Acetic Acid E 260 produces significant irritating vapor when concentrated material is exposed to air.

Acetic Acid E 260 is completely miscible with water.
Acetic Acid E 260 is miscible with ethanol.
Acetic Acid E 260 is miscible with glycerol.
Acetic Acid E 260 is compatible with many polar organic liquids.

Acetic Acid E 260 releases heat when mixed with water.
Acetic Acid E 260 concentrated material should be added slowly to water during dilution.
Acetic Acid E 260 water should not be poured rapidly into a large quantity of concentrated acid.
Acetic Acid E 260 dilution requires agitation, cooling, and splash control where necessary.

Acetic Acid E 260 is a weak acid with a pKa near 4.76.
Acetic Acid E 260 partially dissociates into hydrogen ions and acetate ions in water.
Acetic Acid E 260 solution pH depends on acid concentration and buffering capacity.
Acetic Acid E 260 forms acetate salts when neutralized with bases.

Acetic Acid E 260 reacts with alcohols to form acetate esters.
Acetic Acid E 260 reacts with bases to form acetate salts and water.
Acetic Acid E 260 reacts with carbonates and bicarbonates to release carbon dioxide.
Acetic Acid E 260 reacts with certain metals and may release flammable hydrogen.

Acetic Acid E 260 occurs naturally in plant and animal tissues.
Acetic Acid E 260 is produced biologically during acetic-acid fermentation.
Acetic Acid E 260 can be manufactured by oxidation of ethanol or acetaldehyde.
Acetic Acid E 260 is produced industrially on a large scale through methanol carbonylation.

Acetic Acid E 260 fermentation-derived material may be marketed for natural-positioned applications.
Acetic Acid E 260 synthetic and fermentation-derived products contain the same principal molecule.
Acetic Acid E 260 source and processing claims require supplier documentation.
Acetic Acid E 260 food suitability depends on purity and compliance rather than source alone.

Acetic Acid E 260 food-grade material is subject to purity specifications.
Acetic Acid E 260 concentrated JECFA flavouring-grade material has a minimum referenced assay of 99.5%.
Acetic Acid E 260 specifications may control nonvolatile residue and readily oxidizable substances.
Acetic Acid E 260 specifications may also control heavy metals, water, color, and identification.

Acetic Acid E 260 functions as a food acidifier because it lowers product pH.
Acetic Acid E 260 contributes a characteristic volatile acidic flavor.
Acetic Acid E 260 may support microbial control when used as part of a validated preservation system.
Acetic Acid E 260 does not replace hygienic manufacture or required heat treatment.

Acetic Acid E 260 antimicrobial effectiveness depends on total concentration.
Acetic Acid E 260 antimicrobial effectiveness depends strongly on finished-product pH.
Acetic Acid E 260 undissociated molecules contribute significantly to antimicrobial action.
Acetic Acid E 260 preservation performance must be confirmed in the complete food formulation.

Acetic Acid E 260 is flammable or combustible in concentrated form.
Acetic Acid E 260 has a closed-cup flash point near 39–40°C.
Acetic Acid E 260 has a lower explosive limit near 4% by volume in air.
Acetic Acid E 260 has an upper explosive limit reported near 19.9% at elevated temperature.

Acetic Acid E 260 vapor is heavier than air.
Acetic Acid E 260 vapor may travel through poorly ventilated low areas.
Acetic Acid E 260 ignition risk increases when concentrated acid is heated.
Acetic Acid E 260 requires control of sparks, flames, hot surfaces, and static discharge.

Acetic Acid E 260 concentrated material is corrosive to skin and eyes.
Acetic Acid E 260 can cause severe chemical burns.
Acetic Acid E 260 vapor can strongly irritate the nose, throat, and respiratory tract.
Acetic Acid E 260 hazard severity decreases with dilution but remains concentration dependent.

Acetic Acid E 260 repeated vapor exposure may affect the respiratory system and teeth.
Acetic Acid E 260 occupational exposure should be controlled through enclosure and ventilation.
Acetic Acid E 260 has a NIOSH recommended eight-hour exposure limit of 10 ppm.
Acetic Acid E 260 has a NIOSH recommended short-term exposure limit of 15 ppm.

Acetic Acid E 260 has a NIOSH immediately dangerous to life or health concentration of 50 ppm.
Acetic Acid E 260 concentrated spills can rapidly create irritating airborne concentrations.
Acetic Acid E 260 emergency response requires acid-resistant protective equipment.
Acetic Acid E 260 entry into confined or contaminated areas requires appropriate respiratory protection.

Acetic Acid E 260 should be kept away from strong oxidizing agents.
Acetic Acid E 260 should be kept away from strong bases.
Acetic Acid E 260 should be separated from reactive metals and incompatible organic chemicals.
Acetic Acid E 260 should not be mixed with hypochlorite cleaners because hazardous chlorine-containing gases may form.

Acetic Acid E 260 can corrode carbon steel and various common metals.
Acetic Acid E 260 equipment compatibility depends on concentration, temperature, and water content.
Acetic Acid E 260 storage equipment may use suitable stainless steel, lined steel, glass, or compatible polymers.
Acetic Acid E 260 gaskets, pumps, seals, and piping must be selected for the actual concentration.

Acetic Acid E 260 should be stored in tightly closed compatible containers.
Acetic Acid E 260 should be stored in a cool and well-ventilated area.
Acetic Acid E 260 concentrated material should be stored in a designated corrosive and flammable-liquid area.
Acetic Acid E 260 should be protected from heat, ignition, contamination, and incompatible substances.

Acetic Acid E 260 is available as glacial, concentrated, diluted, food, pharmaceutical, reagent, and technical grades.
Acetic Acid E 260 grades differ in assay, water content, color, residue, metals, and organic impurities.
Acetic Acid E 260 food-grade material should not be replaced with technical-grade acid.
Acetic Acid E 260 should be selected according to the current certificate of analysis and intended application.

PROPERTIES

Chemical Name: Acetic Acid
Food-Additive Name: Acetic Acid E 260
E Number: E 260
INS Number: 260
IUPAC Name: Ethanoic Acid
CAS Number: 64-19-7
EC Number: 200-580-7
PubChem CID: 176
FEMA Number: 2006
JECFA Number: 81
UN Number for More Than 80% Acid: UN 2789
UN Number for 10–80% Acid Solution: UN 2790
Chemical Family: Monocarboxylic acids
Chemical Type: Volatile C2 organic acid
Molecular Formula: C2H4O2
Condensed Formula: CH3COOH
Molecular Weight: 60.05 g/mol
Physical Form: Liquid or crystals below its freezing point
Appearance: Clear and colorless liquid
Odor: Strong, pungent, sour, vinegar-like odor
Taste: Strongly acidic
Food-Grade Assay: Grade dependent; not less than 99.5% in the referenced JECFA concentrated specification
Freezing Point: Approximately 16.6°C
Boiling Point: Approximately 118°C
Specific Gravity: Approximately 1.049 for concentrated food-grade material
Density: Approximately 1.05 g/mL
Water Solubility: Completely miscible
Ethanol Solubility: Miscible
Glycerol Solubility: Miscible
pKa: Approximately 4.76
Vapor Pressure at Approximately 20°C: Approximately 11 mmHg
Vapor Density: Approximately 2.1 relative to air
Flash Point: Approximately 39–40°C, closed cup
Lower Explosive Limit: Approximately 4.0% by volume
Upper Explosive Limit: Approximately 19.9% by volume at elevated temperature
Combustibility: Flammable or combustible concentrated liquid and vapor
Primary Food Functions: Acidifier, acidity regulator, curing agent, pickling agent, flavor enhancer, flavoring agent, adjuvant, solvent, vehicle, and pH-control agent
Primary Food Uses: Pickles, condiments, sauces, relishes, bakery products, cheese, dairy analogues, meat products, fats, oils, chewing gum, beverages, and prepared foods
Primary Industrial Uses: Vinyl acetate, acetic anhydride, acetate esters, cellulose acetate, terephthalic-acid production, coatings, adhesives, inks, textiles, pharmaceuticals, cleaning, and water treatment
NIOSH REL-TWA: 10 ppm or 25 mg/m³
NIOSH REL-STEL: 15 ppm or 37 mg/m³
OSHA PEL-TWA: 10 ppm or 25 mg/m³
NIOSH IDLH: 50 ppm
Primary Concentrated-Acid Hazards: Flammability, corrosivity, severe skin burns, serious eye damage, and respiratory irritation
Storage Conditions: Cool, dry, well-ventilated storage in tightly closed compatible containers
Storage Segregation: Separate from oxidizers, strong bases, hypochlorites, reactive metals, heat, and ignition sources
Shelf Life: Grade, concentration, packaging, and manufacturer dependent
Regulatory Suitability: Food category, concentration, grade, region, and intended application dependent

FIRST AID

Inhalation:
Move the affected person to fresh air immediately and provide respiratory support if needed.
Obtain urgent medical attention after significant concentrated-vapor exposure.

Skin Contact:
Remove contaminated clothing and flush the skin immediately with water for at least 15 minutes.
Obtain medical treatment for concentrated-acid exposure or chemical burns.

Eye Contact:
Rinse immediately with clean water for at least 15 minutes while holding the eyelids open.
Remove contact lenses if easy to do and obtain emergency ophthalmic treatment.

Ingestion:
Rinse the mouth and do not induce vomiting.
Contact a poison center or emergency physician immediately after concentrated-acid ingestion.

Note to Physicians:
Treat symptomatically and provide supportive care.
Consider corrosive injury to the eyes, skin, airway, and gastrointestinal tract.

HANDLING AND STORAGE

Handling:
Wear acid-resistant gloves, protective clothing, chemical goggles, and face protection when handling concentrated material.
Add concentrated acid slowly to water during dilution while providing agitation and cooling.

Ventilation:
Provide effective local exhaust at transfer, dilution, filling, and heated-processing points.
Use appropriate respiratory protection when vapor exposure cannot be adequately controlled.

Storage:
Store in tightly sealed compatible containers in a cool, well-ventilated corrosive-material area.
Keep concentrated material away from heat, flames, oxidizers, bases, hypochlorites, and reactive metals.

Spill and Leak Procedures:
Evacuate the affected area, eliminate ignition sources, and contain the liquid with compatible inert material.
Prevent entry into drains and neutralize or recover the spill only under an approved response procedure.

Handling Precautions:
Provide immediate access to an eyewash and safety shower.
Follow the concentration-specific technical data sheet, safety data sheet, food regulations, and transport requirements.