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EC / List no.: 686-264-3 - 204-822-2
CAS no.: 127-08-2
Mol. formula: C2H4O2.K
Potassium Acetate (CH3COOK) is the potassium salt of acetic acid.
Potassium Acetate is a hygroscopic solid under room temperature.
Preparation
Potassium Acetate can be prepared by treating a potassium-containing base such as potassium hydroxide or potassium carbonate with acetic acid:
CH3COOH + KOH → CH3COOK + H2O
This sort of reaction is known as an acid-base neutralization reaction.
The sesquihydrate in water solution (CH3COOK·1½H2O) begins to form semihydrate at 41.3 °C.
Applications
Deicing
Potassium acetate (as a substitute for calcium chloride or magnesium chloride) can be used as a deicer to remove ice and prevent its formation.
Potassium Acetate offers the advantage of being less aggressive on soils and much less corrosive: for this reason, it is preferred for airport runways although it is more expensive.
Fire extinguishing
Potassium acetate is the extinguishing agent used in Class K fire extinguishers because of its ability to cool and form a crust over burning oils.
Food additive
Potassium acetate is used in processed foods as a preservative and acidity regulator.
In the European Union, it is labeled by the E number E261; it is also approved for usage in the USA, Australia, and New Zealand.
Potassium hydrogen diacetate (CAS #4251-29-0 ) with formula KH(OOCCH3)2 is a related food additive with the same E number as potassium acetate.
Medicine and biochemistry
In medicine, potassium acetate is used as part of electrolyte replacement protocols in the treatment of diabetic ketoacidosis because of its ability to break down to bicarbonate to help neutralize the acidotic state.
In molecular biology, potassium acetate is used to precipitate dodecyl sulfate (DS) and DS-bound proteins to extract ethanol from DNA.
Potassium acetate is used in mixtures applied for tissue preservation, fixation, and mummification.
Most museums today use aformaldehyde-based method recommended by Kaiserling in 1897 which contains potassium acetate.[8] This process was used to soak Lenin's corpse.
Use in executions
Potassium acetate was almost incorrectly used in place of potassium chloride when putting a prisoner to death in Oklahoma in January 2015.
In August 2017, the U.S. state of Florida executed Mark James Asay using a combination of etomidate, rocuronium bromide, and potassium acetate.
Industry
Potassium acetate is used as a catalyst in the production of polyurethanes.
Description
Potassium acetate is the potassium salt of acetic acid.
Potassium Acetate is manufactured through the reaction between a potassium base such as potassium hydroxide or potassium carbonate with acetic acid.
Potassium Acetate is an important macromineral with many physiological functions and is required for nerve conduction, cardiac, skeletal and smooth muscle contraction, energy generation, nucleic acid synthesis as well as mainlining the blood pressure and normal renal function.
Potassium Acetate can be taken as a nutritional supplement with antihypertensive effects and prevention effects against hypokalemia.
Potassium Acetate has several other common applications:
(1) as a deicer;
(2) as a food additive;
(3) molecular biology applications such as DNA purification, tissue preservation, fixation and mummification;
(4) Death penalty
(5) as the catalyst during the production of polyurethanes.
Description
Potassium acetate (CH3CO2K) is the potassium salt of acetic acid.
Chemical Properties
Potassium acetate, KC2H302, is a white, deliquescent solid, soluble in water and alcohol, insoluble in ether, that melts at 292°C.
Potassium Acetate is used as an analytical reagent, dehydrating agent, in medicine, and in crystal glass manufacture.
Chemical Properties
Pure potassium acetate is odorless or has a faint acetic odor and a saline taste.
Uses:
1) Potassium acetate, crystalline powder, USP is, as its name suggests, the potassium salt of acetic acid and is used as a catalyst for producing polyurethanes.
2) In the food industry it is used as a food additive, an acidity regulator and a preservative.
Used as buffers.
Potassium acetate is used in the manufacture of glass; as a softening agent for papers and textiles; as a dehydrating agent; and as a buffer.
In medicine it is used as an expectorant and diuretic.
Potassium acetate was originally used in the preparation of Cadet's fuming liquid, the first organometallic compound produced.
Potassium Acetate is used as diuretic and urinary alkaliser, and acts by changing the physical properties of the body fluids and by functioning as an alkali after absortion.
Potassium acetate is used as a catalyst in the production of polyurethanes.
Potassium acetate can be used as a deicer instead of chloride salts such as calcium chloride or magnesium chloride.
Potassium Acetate offers the advantage of being less aggressive on soils and much less corrosive, and for this reason is preferred for airport runways.
Potassium Acetate is, however, more expensive. Potassium acetate is also the extinguishing agent used in class K fire extinguishers because of its ability to cool and form a crust over burning oils.
Food additive
Potassium acetate is used as a food additive as a preservative and acidity regulator.
In the European Union, Potassium Acetate is labeled by the E number E261 ;
Potassium Acetate is also approved for usage in the USA and Australia and New Zealand.
Potassium diacetate (CAS # 4251-29-0) with formula KH(O2CCH3)2 is a related food additive with the same E number as potassium acetate.
Medicine and biochemistry
In medicine, potassium acetate is used as part of replacement protocols in the treatment of diabetic ketoacidosis because of its ability to break down into bicarbonate and help neutralize the acidotic state.
In molecular biology, potassium acetate is used to precipitate dodecyl sulfate (DS) and DS-bound proteins, allowing the removal of proteins from DNA.
Potassium Acetate is also used as a salt for the ethanol precipitation of DNA.
Preparation
Potassium Acetate can be prepared by treating a potassium-containing base such as potassium hydroxide or potassium carbonate with acetic acid:
2 CH3COOH + K2CO3→ 2 CH3CO2K + CO2 + H2O
This sort of reaction is known as an acid-base neutralization reaction.
Potassium acetate is the salt that forms along with water as acetic acid and potassium hydroxide are neutralized together.
Conditions/substances to avoid are: moisture, heat, flames, ignition sources, and strong oxidizing agents.
Preparation
Potassium acetate is prepared by addition of potassium carbonate in a small volume of water to acetic acid solution, followed by evaporation and crystallization:
K2CO3+ 2CH3COOH →2CH3COOK + H2O
Definition
ChEBI: A potassium salt comprising equal numbers of potassium and acetate ions
General Description
Potassium acetate is generally used as an acidity regulator, buffer, preservative and firming agent.
Potassium Acetate is the acetate salt form of potassium, an essential macromineral.
Potassium maintains intracellular tonicity, is required for nerve conduction, cardiac, skeletal and smooth muscle contraction, production of energy, the synthesis of nucleic acids, maintenance of blood pressure and normal renal function.
This agent has potential antihypertensive effects and when taken as a nutritional supplement may prevent hypokalemia.
Potassium acetate is a potassium salt comprising equal numbers of potassium and acetate ions.
Potassium Acetate has a role as a food acidity regulator.
Potassium Acetate contains an acetate.
Industry Uses
Agricultural chemicals (non-pesticidal)
De-icer
Flame retardants
Functional fluids (open systems)
Internal Feedstock
Laboratory chemicals
Lubricants and lubricant additives
PU Catalyst
Plating agents and surface treating agents
Potassium Acetate is used in fire extinguishers. In oil fires, it cools the surface and it forms a coating over the oil and extinguishes the fire
Processing aids, not otherwise listed
Processing aids, specific to petroleum production
Consumer Uses
Agricultural products (non-pesticidal)
Anti-freeze and de-icing products
Building/construction materials not covered elsewhere
Electrical and electronic products
Fire suppression
Fire suppression chemical
Internal feedstock
Lawn and garden care products
Lubricants and greases
Metal products not covered elsewhere
Non-TSCA use
Plastic and rubber products not covered elsewhere
General Manufacturing Information
Industry Processing Sectors
All other basic organic chemical manufacturing
All other chemical product and preparation manufacturing
Construction
Deicer
Electrical equipment, appliance, and component manufacturing
Fabricated metal product manufacturing
Food, beverage, and tobacco product manufacturing
Mining (except oil and gas) and support activities
Miscellaneous manufacturing
Oil and gas drilling, extraction, and support activities
Pesticide, fertilizer, and other agricultural chemical manufacturing
Pharmaceutical and medicine manufacturing
Soap, cleaning compound, and toilet preparation manufacturing
Textiles, apparel, and leather manufacturing
Wholesale and retail trade
MAIN USES:
Potassium Acetate Solution is a clear, near colourless liquid manufactured by reacting Potassium Hydroxide and Glacial Acetic Acid to produce strengths of 52% or 57%.
The product is typically supplied in bulk tankers, 200 litre drums or 1000 litre IBC’s for use within the pharmaceutical, oilfield and specialised de-icer industries.
Potassium Acetate Crystal is a fine, white crystalline powder produced by reacting Potassium Hydroxide and Glacial Acetic Acid.
The product is typically supplied in 25 kg sacks and is sold within the pharmaceutical, oilfield and specialised de-icer industries.
Product data and typical properties
Formula: KCOOCH3
Molecular weight: 98.15
Specific Gravity (20°C): 1.29 (typical)
Crystallisation temperature: Less than -10°C
Appearance: near clear liquid
Assay: % KCOOCH3 52.0 ± 1.0
pH (20°C, neat): 11.0 ± 0.2
Description:
Potassium Acetate Solution has a buffering range from pH 3.8 - 5.8.
Potassium Acetate is used in the purification and precipitation of nucleic acids.
The Buffer is also used to precipitate dodecyl sulfate (DS) and DS-bound proteins allowing the removal of proteins from DNA.
Potassium Acetate is a potassium salt employed to replenish electrolytes, for restoration of water-electrolyte balance, as well as a urinary and systemic alkalizer.
Potassium Acetate can be administered orally or by intravenous infusion.
Formerly, Potassium Acetate was employed in diuretics and expectorants. Potassium Acetate is hygroscopic and insoluble in ether.
Potassium acetate is used as deicer to remove snow and ice from the surface and considered as a replacement for calcium chloride or magnesium chloride.
Potassium Acetate is used as a food additive, as a buffer in biological research, as an extinguishing agent used in class K fire extinguishers and as a catalyst to produce polyurethane polymers.
Potassium Acetate is utilized for the precipitation of dodecyl sulfate bound proteins, thereby removal of proteins from DNA.
Potassium Acetate plays an important role in preserving tissues, fixation and mummification.
Potassium Acetate is a moderately water soluble crystalline Potassium source that decomposes to Potassium oxide on heating.
Potassium Acetate is generally immediately available in most volumes.
All metallic acetates are inorganic salts containing a metal cation and the acetate anion, a univalent (-1 charge) polyatomic ion composed of two carbon atoms ionically bound to three hydrogen and two oxygen atoms (Symbol: CH3COO) for a total formula weight of 59.05.
Acetates are excellent precursors for production of ultra high purity compounds, catalysts, and nanoscale materials.
About Potassium Acetate
Helpful information
Potassium Acetate is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 10 000 to < 100 000 tonnes per annum.
Potassium Acetate is used by consumers, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.
Consumer Uses
Potassium Acetate is used in the following products: washing & cleaning products, fertilisers, pH regulators and water treatment products, cosmetics and personal care products and anti-freeze products. Other release to the environment of Potassium Acetate is likely to occur from: indoor use as processing aid and outdoor use.
Article service life
Release to the environment of Potassium Acetate can occur from industrial use: manufacturing of the substance and formulation of mixtures.
Other release to the environment of Potassium Acetate is likely to occur from: indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment), outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials), indoor use in long-life materials with high release rate (e.g. release from fabrics, textiles during washing, removal of indoor paints) and outdoor use in long-life materials with high release rate (e.g. tyres, treated wooden products, treated textile and fabric, brake pads in trucks or cars, sanding of buildings (bridges, facades) or vehicles (ships)).
Potassium Acetate can be found in complex articles, with no release intended: vehicles and machinery, mechanical appliances and electrical/electronic products (e.g. computers, cameras, lamps, refrigerators, washing machines).
Potassium Acetate can be found in products with material based on: plastic (e.g. food packaging and storage, toys, mobile phones).
Widespread uses by professional workers
Potassium Acetate is used in the following products: laboratory chemicals, fertilisers, pH regulators and water treatment products and washing & cleaning products.
Potassium Acetate is used in the following areas: agriculture, forestry and fishing, mining, health services, printing and recorded media reproduction, building & construction work and municipal supply (e.g. electricity, steam, gas, water) and sewage treatment.
Potassium Acetate is used for the manufacture of: chemicals, textile, leather or fur, food products, plastic products and mineral products (e.g. plasters, cement).
Other release to the environment of Potassium Acetate 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 outdoor use.
Formulation or re-packing
Potassium Acetate is used in the following products: anti-freeze products, pH regulators and water treatment products, washing & cleaning products, fertilisers and polymers.
Release to the environment of Potassium Acetate can occur from industrial use: formulation of mixtures and formulation in materials.
Other release to the environment of Potassium Acetate 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).
Uses at industrial sites
Potassium Acetate is used in the following products: anti-freeze products, polymers, laboratory chemicals, pH regulators and water treatment products, washing & cleaning products and coating products.
Potassium Acetate is used in the following areas: mining, printing and recorded media reproduction and municipal supply (e.g. electricity, steam, gas, water) and sewage treatment.
Potassium Acetate is used for the manufacture of: chemicals, plastic products, textile, leather or fur, food products and mineral products (e.g. plasters, cement).
Release to the environment of Potassium Acetate can occur from industrial use: in processing aids at industrial sites, as an intermediate step in further manufacturing of another substance (use of intermediates), as processing aid, in the production of articles and for thermoplastic manufacture.
Manufacture
Release to the environment of Potassium Acetate can occur from industrial use: manufacturing of the substance and formulation of mixtures.
Other release to the environment of Potassium Acetate 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).
IUPAC NAMES:
Cryotech E-36
Octan draselný
Potassium Acetat
POTASSIUM ACETATE
Potassium Acetate
Potassium acetate
potassium acetate
Potassium Acetate
Potassium acetate
potassium acetate
potassium;acetate
SYNONYMS:
Potassium acetate 99.98% trace metals basis, ~100 ppm Rb, <50 ppm Cs
Potassium acetate ACS reagent, >=99.0%
Potassium acetate anhydrous, free-flowing, Redi-Dri(TM), ACS reagent, >=99.0%
Potassium acetate puriss. p.a., >=99% (perchloric acid titration)
Potassium acetate puriss., meets analytical specification of Ph. Eur., BP, E261, 99-101%
Potassium acetate ReagentPlus(R), >=99.0%
Potassium acetate Vetec(TM) reagent grade, 99%
EPA608-PERFORMANCE CHECK SOLUTION
LINOLEIC ACID ULTRA PURE GRADE
EPA608-PESTICIDE MIX 2
KARL FISCHER REAGENT COMBINORM 5K
Macasirool
Mirfat
Octan draselny
octandraselny
Odemase
Oedemex
Pltassiumacetate
potassiumethanoate
Profemin
Rosemide
Rusyde
Sal diureticum
Trofurit
ACETIC ACID, POTASSIUM SALT
Potassium acetate anhydrous, free-flowing, Redi-Dri, ACS reagent, >=99.0%
POTASSIUM ACETATE, FOR MOLECULAR BIO
POTASSIUM ACETATE, MOLECULAR BIOLOGY
FEMA 2920
POTASSIUM ACETATE
POTASSIUM ACETATE TS
PRECIPITATION SOLUTION
POTASSIUM ACETATE MOLECULAR BIOLOGY GRADE
Acetic acid/Potassium acetate/Potassium acetate
Potassium acetate, ACS, 99% min
Potassium Acetate, Granular
POLYVINYLPYROLLIDONE pure
POTASSIUM ACETATE extrapure AR
Potassium Acetate, crystal
Potassium acetate hydrate, Puratronic, 99.997% (metals basis)
Potassiumacetate,99+%(ACS)
k(acac)
POTASSIUMACETATE,BIOTECHGRADE
POTASSIUMACETATE,CRYSTAL,REAGENT,ACS
POTASSIUMACETATE,GRANULAR,USP
POTASSIUMACETATE,TECHNICAL
POTASSIUMDIACETATE
Kaliumacetat
catacyst LB
Potassium Acetate, Crystal, Reagent
Acetic acid, potassium salt, 97%, anhydrous, pure
Acetic acid, potassium salt, 99+%, for analysis
Acetic acid, potassium salt, 99+%, anhydrous, pure
Acetic acid, potassium salt, for analysis
Acetic acid, potassium salt, for analysis ACS
Acetic acid potassium
POTASSIUM ACETATE XTL
Kac
