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Potassium Acetate

Product Name:
Potassium Acetate
CAS No.
127-08-2
Chemical Name:
Potassium Acetate
CBNumber:
CB8690168
Molecular Formula:
C2H3KO2
Formula Weight:
98.14
MOL File:
127-08-2.mol
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Potassium Acetate Property

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. 
Store at RT.
solubility 
H2O: 1 M at 20 °C, clear, colorless
form 
Solid
Specific Gravity
1.57
color 
White to light brown
Odor
Odorless
PH
7.5-8.5 (50g/l, H2O, 20℃)
PH Range
7 - 9 at 98.2 g/l at 25 °C
Water Solubility 
2694 g/L (25 ºC)
λmax
λ: 260 nm Amax: 0.04
λ: 280 nm Amax: 0.02
Sensitive 
Hygroscopic
Hydrolytic Sensitivity
0: forms stable aqueous solutions
Merck 
14,7605
BRN 
3595449
Stability:
Stability Deliquescent. Stable. Incompatible with strong oxidizing agents.
InChIKey
SCVFZCLFOSHCOH-UHFFFAOYSA-M
CAS DataBase Reference
127-08-2(CAS DataBase Reference)
NIST Chemistry Reference
Potassium acetate(127-08-2)
EPA Substance Registry System
Potassium acetate (127-08-2)
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Safety

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)
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N-Bromosuccinimide Price More Price(57)

Sigma-Aldrich Gold
Product number:
1549807
Product name :
Potassium acetate
Purity:
United States Pharmacopeia (USP) Reference Standard
Packaging:
500mg
Price:
$338.1
Updated:
2019/12/02
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Sigma-Aldrich Gold
Product number:
236497
Product name :
Potassium acetate
Purity:
ACS reagent, ≥99.0%
Packaging:
2.5kg
Price:
$284
Updated:
2019/12/02
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Alfa Aesar Gold
Product number:
013449
Product name :
Potassium acetate, ACS, 99% min
Packaging:
*5x2kg
Price:
$495
Updated:
2020/06/24
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Alfa Aesar Gold
Product number:
013449
Product name :
Potassium acetate, ACS, 99% min
Packaging:
2kg
Price:
$142
Updated:
2020/06/24
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Strem Chemicals Gold
Product number:
93-1901
Product name :
Potassium acetate, 99+% (ACS)
Packaging:
2kg
Price:
$206
Updated:
2020/06/24
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Potassium Acetate Chemical Properties,Usage,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

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.

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

Uses

Used as buffers.

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

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.

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

Definition

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

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Potassium Acetate Suppliers

Global(396)Suppliers
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127-08-2, Potassium AcetateRelated Search:

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Description References