Barium propionate

Structural formula
General
Surname	Barium propionate
other names	Barium propanoate
Molecular formula	C 6 H 10 BaO 4
Brief description	colorless voluminous prisms
External identifiers / databases
CAS number 5908-77-0 EC number 227-612-2 ECHA InfoCard 100.025.102 PubChem 6096929 Wikidata Q808223
properties
Molar mass	283.47 g · mol -1
Physical state	firmly
boiling point	300 ° C (decomposition)
pK s value	4.88
solubility	541 g l −1 at 12 ° C almost insoluble in ethanol
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 302-332 P: ?
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Barium propionate is the barium salt of propionic acid .

Manufacturing

Barium propionate can be prepared by reaction of barium hydroxide are shown with propionic acid.

${\displaystyle \mathrm {Ba(OH)_{2}+2\ C_{2}H_{5}COOH\ \longrightarrow \ (C_{2}H_{5}COO)_{2}Ba+2\ H_{2}O} }$

properties

Barium propionate forms different hydrates: a monohydrate, which gives off its water of crystallization at 110 ° C, a tri- and a hexahydrate.

When heated dry to 460 ° C, barium propionate decomposes into 3-pentanone and barium carbonate .

Web links

• Entry on barium propionate (IR spectrum). In: P. J. Linstrom, W. G. Mallard (Eds.): NIST Chemistry WebBook, NIST Standard Reference Database Number 69 . National Institute of Standards and Technology , Gaithersburg MD

Individual evidence

1. ↑ ^{a b c d e} A. Renard: "Sur les propionates métalliques" in Comptes rend. hebd. 1887 , 104 , pp. 913-917. Full text
2. ↑ WLF Armarego, Christina Li Lin Chai: "Purification of laboratory chemicals," Butterworth-Heinemann, 2003, ISBN 9780750675710 , p 399. ( limited preview in Google Book Search)
3. ^ HJ Wing, TJ Thompson: "The solubility of Barium propionate" in J. Am. Chem. Soc 1926 , 48 (1), pp. 104-106, doi : 10.1021 / ja01412a014 .
4. ↑ There is not yet a harmonized classification for this substance . A labeling of barium dipropionate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), which was accessed on December 28, 2019, is reproduced from a self-classification by the distributor .
5. ↑ U. Hasenkox, S. Hoffmann, R. Waser: "Influence of Precursor Chemistry on the Formation of MTiO3 (M = Ba, Sr) Ceramic Thin Films" in Journal of Sol-Gel Science and Technology 1998 , 12 (2), Pp. 67-79. doi : 10.1023 / A: 1026480027046
6. ^ AT Johns: "The Mechanism of Propionic Acid Formation by Veillonella gazogenes" in J. gen. Microbiol. 1951 , 5 , pp. 326-336. doi : 10.1099 / 00221287-5-2-326 , PMID 14832421 .