Potassium propionate

Structural formula
General
Surname	Potassium propionate
other names	Potassium propanoate; E 283;
Molecular formula	C 3 H 5 KO 2
Brief description	colorless, crystalline platelets
External identifiers / databases
EC number	206-323-5
ECHA InfoCard	100.005.749
PubChem	23663619
Wikidata	Q416435
properties
Molar mass	112.17 g mol −1
Physical state	firmly
Melting point	> 300 ° C
solubility	1780 g l −1 (16 ° C); soluble in ethanol ;
safety instructions
GHS labeling of hazardous substances	no GHS pictograms
	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 propionate is the potassium salt of propionic acid . The chemical compound is used in the food industry as a preservative under the number E 283 , especially in sliced bread and baked goods . The hygroscopic salt crystallizes from aqueous solutions as a monohydrate (C ₂ H ₅ COOK · H ₂ O).

properties

Potassium propionate crystallizes as a monohydrate, which gives off its water of crystallization at 120 ° C.

safety instructions

With prolonged administration of propionic acid and propionates in the feed of rats in doses between 0.6 and 5%, these cause changes in the forestomach ( thickening and inflammation). However, this is classified as a species-specific reaction for rats, since no such effects were observed in other animal species such as mice and rabbits.

Situation in Germany

The use of propionic acid or its sodium , potassium or calcium salt in food was banned in the Federal Republic of Germany from January 1, 1988, as no longer a need for use was seen. In the EU, however, its use is permitted again.

Individual evidence

↑ ^a ^b ^c ^d J. IG Cadogan, J. Buckingham, F. MacDonald: Dictionary of Organic Compounds: First Supplement. CRC Press, 1996, ISBN 978-0-412-54110-0 .
↑ ^a ^b ^c A. Renard: "Sur les propionates métalliques" in Comptes rend. hebd. 1887 , 104 , pp. 913-917 ( full text ).
↑ Template: CL Inventory / not harmonized There is not yet a harmonized classification for this substance . A labeling of potassium propionate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), retrieved on July 28, 2019, is reproduced from a self-classification by the distributor .
^ W. Baltes: Food chemistry . 3rd ed., Springer, Berlin et al., 1992. pp. 160-161.
↑ ^a ^b H.-G. Classen, PS Elias, WP Hammes, M. Winter: Toxicological-hygienic assessment of food ingredients and additives. Behr's Verlag, 2001, ISBN 978-3-86022-806-7

[Cadogan-1] J. IG Cadogan, J. Buckingham, F. MacDonald: Dictionary of Organic Compounds: First Supplement. CRC Press, 1996, ISBN 978-0-412-54110-0 .

[Renard-2] A. Renard: "Sur les propionates métalliques" in Comptes rend. hebd. 1887 , 104 , pp. 913-917 ( full text ).

[3] Template: CL Inventory / not harmonized There is not yet a harmonized classification for this substance . A labeling of potassium propionate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), retrieved on July 28, 2019, is reproduced from a self-classification by the distributor .

[4] W. Baltes: Food chemistry . 3rd ed., Springer, Berlin et al., 1992. pp. 160-161.

[classen-5] H.-G. Classen, PS Elias, WP Hammes, M. Winter: Toxicological-hygienic assessment of food ingredients and additives. Behr's Verlag, 2001, ISBN 978-3-86022-806-7