Potassium lactate

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Structural formula
Structural formula of potassium lactate
Structural formula without stereochemistry
General
Surname Potassium lactate
other names

E  326

Molecular formula C 3 H 5 KO 3
External identifiers / databases
CAS number 996-31-6
EC number 213-631-3
ECHA InfoCard 100.012.392
PubChem 23671663
Wikidata Q411342
Drug information
ATC code

B05 XA15

properties
Molar mass 128.17 g mol −1
safety instructions
Please note the exemption from the labeling requirement for drugs, medical devices, cosmetics, food and animal feed
GHS labeling of hazardous substances
no GHS pictograms
H and P phrases H: no H-phrases
P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Potassium lactate is the potassium salt of lactic acid .

history

The connection was first scientifically described in 1847 by H. Engelhardt and R. Maddrell.

Extraction and presentation

Potassium lactate is produced industrially by neutralizing lactic acid with potassium hydroxide .

use

In the world wars, potassium lactate was used as a substitute for glycerine in order to save it for war purposes.

For technical use, it is offered as an aqueous solution.

It has a broad-spectrum antimicrobial effect.

In food technology it is used as a humectant and as an acidity regulator . It is often added to meat and poultry products to extend their shelf life or sellability. Potassium lactate is approved in the EU as a food additive with the number E 326 for all foodstuffs approved for additives - including organic food - without a maximum amount restriction ( quantum satis ).

Individual evidence

  1. ↑ a b SpectrumChemical: Potassium Lactate, 60% , accessed July 1, 2019
  2. ↑ H. Engelhardt, R. Maddrell: About lactic acid and its salts . In: Justus Liebig's Annals of Chemistry . tape 63 , no. 1 , 1847, p. 83-120 , doi : 10.1002 / jlac.18470630104 .
  3. ^ Albert A. Dietz, Ed. F. Degering, HH Schopmeyer: Physical Properties of Sodium, Potassium, and Ammonium Lactate Solutions . In: Industrial & Engineering Chemistry . tape 33 , no. 11 , 1941, pp. 1444-1447 , doi : 10.1021 / ie50383a027 (English).
  4. ↑ Restricted additives , Annex 4 (to § 5 Paragraph 1 and § 7) of the Additive Admissions Ordinance