Potassium lactate
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Structural formula without stereochemistry | ||||||||||||||||
General | ||||||||||||||||
Surname | Potassium lactate | |||||||||||||||
other names |
E 326 |
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Molecular formula | C 3 H 5 KO 3 | |||||||||||||||
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properties | ||||||||||||||||
Molar mass | 128.17 g mol −1 | |||||||||||||||
safety instructions | ||||||||||||||||
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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
- ↑ a b SpectrumChemical: Potassium Lactate, 60% , accessed July 1, 2019
- ↑ 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 .
- ^ 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).
- ↑ Restricted additives , Annex 4 (to § 5 Paragraph 1 and § 7) of the Additive Admissions Ordinance