Potassium Acetate

Potassium Acetate
Potassium Acetate
Are common
Systematic ; name	Potassium Acetate
Traditional names	potassium acetate
Chem. formula	C 2 H 3 KO 2
Rac formula	CH 3 COOK
Physical properties
condition	solid crystalline
Molar mass	98.15 g / mol
Density	1.57 g / cm³
Hardness	2
Thermal properties
T. melt.	292 ° C
T.	~ 230 ° C
Education enthalpy	-722.6 kJ / mol
Melting enthalpy	22 kJ / mol
Chemical properties
Water solubility (25 ° C)	269.4 g / 100 ml
Solubility in water (80 ° C)	380 g / 100 ml
Solubility in glycerin (20 ° C)	70 g / 100 ml
Classification
Reg. CAS number	127-08-2
Pubchem
Reg. EINECS number
SMILES
Inchi
Codex Alimentarius
CHEBI
Chemspider
Security
LD 50	3250 mg / kg
Toxicity	Dust, getting into the lungs, eyes and staying on the skin for a long time, causes irritation.
R-phrases	R36 / 37/38
NFPA 704	0 one 0

Potassium acetate (potassium acetate, CH ₃ COOK) - potassium salt of acetic acid .

Content

Getting

Can be obtained by the reaction of basic potassium compounds, such as KOH (caustic potash, potassium hydroxide) or potassium carbonate - K ₂ C O ₃ , with acetic acid :

{\mathsf {2CH_{3}COOH+K_{2}CO_{3}\ {\xrightarrow {}}\ 2CH_{3}COOK+CO_{2}\uparrow +H_{2}O}}

{\ displaystyle {\ mathsf {2CH_ {3} COOH + K_ {2} CO_ {3} \ {\ xrightarrow {}} \ 2CH_ {3} COOK + CO_ {2} \ uparrow + H_ {2} O}}}

Storage and precaution

It is recommended to avoid contact of potassium acetate with sources of water, heat, sparks, open fire and with strong oxidizing media.

Scope

Potassium acetate can be used as an anti-icer reagent, replacing chlorides, such as calcium chloride or magnesium chloride . Its advantage lies in the less aggressive impact on the soil composition and it is less corrosive , which is the reason for its use in cleaning the lanes at airports. However, it is more expensive.
Potassium acetate is used in class K fire extinguishing agents (fire extinguisher) - according to the classification of US fire extinguishing agents because of its ability to cool and form a crust over burning fuel (the main use of the classification is to extinguish burning oils).
Potassium acetate is used in replacement therapy for diabetic ketoacidosis because of its ability to decompose into bicarbonate and reduce acidity.
- Diabetic ketoacidosis is a life-threatening complication in patients with untreated diabetes (with chronic high blood sugar). It is more common in patients with type I diabetes, but it can also be in patients with type II diabetes with prolonged stress exposure and / or infections. It is characterized by an acid reaction of the blood (at a pH below 6.7, it is incompatible with life) a high level of ketone bodies in the blood and a high concentration of sugar in the blood. Treatment consists in reducing the osmotic pressure of the blood (a lot of fluid is injected intravenously), replacing the missing electrolytes (the usual complication of hypokalemia is a lack of potassium ions), and insulin injection mixed with glucose to normalize the metabolic processes.

Potassium acetate is used as a preservative and acidity regulator in the food industry. As a dietary supplement , it is indicated by the index E261 (along with potassium diacetate ) ^[1] . Included in the list of food additives approved for use in the Russian Federation ^[2] .
Potassium acetate is used in the composition of preservative solutions, fixers and for mummification. Most museums in the world today use the formaldehyde method recommended by Kaiserling in 1897 for this, and potassium acetate is also used ^[3] . For example, the body of V. I. Lenin was mothballed in a bath of solution, which included potassium acetate ^[4] .

Toxicity

Potassium acetate is low toxic, but when it enters the lungs, it is a very strong irritant to the eyes and the skin.

Links

↑ SanPiN 2.3.2.560-96. Hygienic requirements for the quality and safety of food raw materials and food. Archived September 21, 2016.
↑ Sanitary-epidemiological rules and regulations SanPiN 2.3.2.1293-03 “Hygienic requirements for the use of food additives. Annex 1". - Moscow, 15.06.2003 with changes from 05.26.2008
↑ Dale Ulmer, “Fixation. The Key to Good Tissue Preservation., Journal of the International Society for Plastination, Vol 8 (1): 7-10, 1994 Archived May 16, 2011. (eng.)
↑ Andrew Nagorski, "The Greatest Battle", Simon and Shuster, 2007, page 53. (eng.)