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Potassium Acetate

CAS No.
127-08-2
Chemical Name:
Potassium Acetate
Synonyms
KOAc;Kac;pharm;Disal;Rusyde;Diural;Frusid;Fulsix;Katlex;LB-502
CBNumber:
CB8690168
Molecular Formula:
C2H3KO2
Molecular Weight:
98.14
MDL Number:
MFCD00012458
MOL File:
127-08-2.mol
MSDS File:
SDS
Last updated:2024-04-25 13:42:50

Potassium Acetate Properties

Melting point 292 °C
Density 1.57 g/cm3 at 25 °C (lit.)
FEMA 2920 | POTASSIUM ACETATE
refractive index n20/D 1.370
Flash point >250℃
storage temp. room temp
solubility H2O: 1 M at 20 °C, clear, colorless
pka 4.756[at 20 ℃]
form Solid
Specific Gravity 1.57
color White to light brown
Odor Odorless
PH Range 7 - 9 at 98.2 g/l at 25 °C
PH 7.87(1 mM solution);8.33(10 mM solution);8.75(100 mM solution);9.06(1000 mM solution)
Water Solubility 2694 g/L (25 ºC)
Sensitive Hygroscopic
Hydrolytic Sensitivity 0: forms stable aqueous solutions
λmax λ: 260 nm Amax: 0.04
λ: 280 nm Amax: 0.02
Merck 14,7605
BRN 3595449
Stability Deliquescent. Stable. Incompatible with strong oxidizing agents.
InChIKey SCVFZCLFOSHCOH-UHFFFAOYSA-M
LogP -3.72
Substances Added to Food (formerly EAFUS) POTASSIUM ACETATE
FDA 21 CFR 172.515; 310.545
CAS DataBase Reference 127-08-2(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII M911911U02
ATC code B05XA17
NIST Chemistry Reference Potassium acetate(127-08-2)
EPA Substance Registry System Potassium acetate (127-08-2)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H303
Precautionary statements  P270-P301+P312-P403+P233-P501c
Hazard Codes  Xi,T
Risk Statements  36/37/38-25-23/24/25-21
Safety Statements  26-36-24/25-45-36/37/39
WGK Germany  1
RTECS  AJ3325000
Hazard Note  Hygroscopic
TSCA  Yes
HS Code  29159000
Toxicity LD50 orally in rats: 3.25 g/kg, H. F. Smyth et al., Am. Ind. Hyg. Assoc. J. 30, 470 (1969)
NFPA 704
1
1 1

Potassium Acetate price More Price(93)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 95843 Potassium acetate solution BioUltra, for molecular biology, 5?M in H2O 127-08-2 100mL $118 2024-03-01 Buy
Sigma-Aldrich 95843 Potassium acetate solution BioUltra, for molecular biology, 5?M in H2O 127-08-2 250ML $265 2024-03-01 Buy
Sigma-Aldrich 529543 Potassium Acetate, Molecular Biology Grade - CAS 127-08-2 - Calbiochem 127-08-2 250g $82.2 2024-03-01 Buy
Sigma-Aldrich 236497 Potassium acetate ACS reagent, ≥99.0% 127-08-2 2.5kg $363 2024-03-01 Buy
Sigma-Aldrich 1.04820 Potassium acetate extra pure, Emprove? Essential, Ph. Eur., BP, JPE, E 261 127-08-2 1kg $88 2024-03-01 Buy
Product number Packaging Price Buy
95843 100mL $118 Buy
95843 250ML $265 Buy
529543 250g $82.2 Buy
236497 2.5kg $363 Buy
1.04820 1kg $88 Buy

Potassium Acetate Chemical Properties,Uses,Production

Description

Potassium acetate is the potassium salt of acetic acid. It is manufactured through the reaction between a potassium base such as potassium hydroxide or potassium carbonate with acetic acid. It 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. It can be taken as a nutritional supplement with antihypertensive effects and prevention effects against hypokalemia. It 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.

References

https://pubchem.ncbi.nlm.nih.gov/compound/Potassium_acetate#section=Top
https://en.wikipedia.org/wiki/Potassium_acetate

Description

Potassium acetate (CH3CO2K) is the potassium salt of acetic acid.

Chemical Properties

Pure potassium acetate is odorless or has a faint acetic odor and a saline taste.

Chemical Properties

Potassium acetate, KC2H302, is a white, deliquescent solid, soluble in water and alcohol, insoluble in ether, that melts at 292°C. It is used as an analytical reagent, dehydrating agent, in medicine, and in crystal glass manufacture.

Uses

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.

Uses

Used as buffers.

Uses

Potassium acetate was originally used in the preparation of Cadet's fuming liquid, the first organometallic compound produced. It 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.

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 polyurethanes2) In the food industry it is used as a food additive, an acidity regulator and a preservative

Definition

ChEBI: A potassium salt comprising equal numbers of potassium and acetate ions

Application

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. It offers the advantage of being less aggressive on soils and much less corrosive, and for this reason is preferred for airport runways. It 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.
3 – 1 - Food additive
Potassium acetate is used as a food additive 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 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.
3 – 2 - 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. It 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

General Description

Potassium acetate is generally used as an acidity regulator, buffer, preservative and firming agent.

Flammability and Explosibility

Non flammable

540-88-5
10519-96-7
127-08-2
Synthesis of Potassium Acetate from tert-Butyl acetate and Potassium trimethylsilanolate
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View Lastest Price from Potassium Acetate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Potassium acetate pictures 2024-04-25 Potassium acetate
127-08-2
US $1.00 / KG 1KG 99.91% 200000 Ouhuang Engineering Materials (Hubei) Co., Ltd
Potassium Acetate pictures 2024-04-19 Potassium Acetate
127-08-2
US $50.00 / kg 1kg 99.10% 5000kg Ouhuang Engineering Materials (Hubei) Co., Ltd
Potassium Acetate pictures 2023-12-25 Potassium Acetate
127-08-2
US $5.00 / kg 1kg 99% 200000000 Hebei Jingbo New Material Technology Co., Ltd
  • Potassium acetate pictures
  • Potassium acetate
    127-08-2
  • US $1.00 / KG
  • 99.91%
  • Ouhuang Engineering Materials (Hubei) Co., Ltd
  • Potassium Acetate pictures
  • Potassium Acetate
    127-08-2
  • US $50.00 / kg
  • 99.10%
  • Ouhuang Engineering Materials (Hubei) Co., Ltd
  • Potassium Acetate pictures
  • Potassium Acetate
    127-08-2
  • US $5.00 / kg
  • 99%
  • Hebei Jingbo New Material Technology Co., Ltd
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