Barium adipate

Structural formula
General
Surname	Barium adipate
other names	Barium hexanedioate
Molecular formula	C 6 H 8 BaO 4
External identifiers / databases
CAS number 60178-85-0 Wikidata Q808213
properties
Molar mass	281.45 g mol −1
Physical state	firmly
solubility	120.4 g l −1 (12 ° C)
safety instructions
GHS hazard labeling no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Barium adipate is a chemical compound from the group of carboxylic acid salts and the barium salt of adipic acid .

Manufacturing

Barium adipate can be made by precipitating a hot barium chloride solution with sodium adipate .

${\displaystyle \mathrm {(CH_{2})_{4}(COO^{-})_{2}(Na^{+})_{2}+BaCl_{2}\ \longrightarrow \ 2\ NaCl+(CH_{2})_{4}(COO)_{2}Ba\downarrow } }$

The neutralization of a barium hydroxide solution with adipic acid also provides barium adipate.

${\displaystyle \mathrm {(CH_{2})_{4}(COOH)_{2}+Ba(OH)_{2}\ \longrightarrow \ (CH_{2})_{4}(COO)_{2}Ba+2\ H_{2}O} }$

properties

Barium adipate crystallizes without crystal water. It is much more soluble in cold water than in hot water - at 12 ° C 120.4 g dissolve in 1 liter of water, at 100 ° C only 74.7 g.

The pyrolysis of barium adipate at 350 ° C yields cyclopentanone and barium carbonate .

Individual evidence

1. ↑ ^{a b c d e} W. Dieterle, C. Hell: "To the knowledge of adipic acid" in Ber. d. German chem. Ges. 1884 , 17 , pp. 2221-2228. Full text
2. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
3. ↑ ^{a b} J. Bigeleisen, AA Bothner-By, L. Friedman: ". Fractionation of the Carbon Isotopes in decarboxylation Reactions V. The Mechanism of the Pyrolysis of barium adipates," in J. Am. Chem. Soc. 1953 , 75 (12), pp. 2908-2910. doi : 10.1021 / ja01108a035