Ammonium adipate

Structural formula
General
Surname	Ammonium adipate
other names	Diammonium adipate Ammonium hexanedioate
Molecular formula	C 6 H 16 N 2 O 4
External identifiers / databases
CAS number 3385-41-9 19090-60-9 EC number 222-196-9 ECHA InfoCard 100.020.180 PubChem 167786 ChemSpider 146777 Wikidata Q473446
properties
Molar mass	180.20 g mol −1
Physical state	firmly
solubility	399.7 g l −1 (14 ° C)
safety instructions
GHS hazard labeling no classification available
Toxicological data	10040 mg kg −1 ( LD 50 ,  rat ,  oral )
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

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

Manufacturing

Ammonium adipate can be made by evaporating a solution of adipic acid in excess ammonia .

${\displaystyle \mathrm {(CH_{2})_{4}(COOH)_{2}+2\ NH_{3}\ \longrightarrow \ (CH_{2})_{4}(COO^{-})_{2}(NH_{4}^{+})_{2}} }$

properties

Physical Properties

Ammonium adipate crystallizes without crystal water in shiny flakes in the monoclinic crystal system in the space group P 2 ₁ / c (space group no. 14) with the lattice parameters a = 615.0  pm , b = 889.7 pm, c = 869.0 pm and β = 98.21 °. In the unit cell contains two formula units .

Chemical properties

When heated to 100 ° C, half of the ammonia escapes and ammonium hydrogen adipate is formed. At 120 - 150 ° C the remaining ammonia escapes and the pure acid remains.

use

Ammonium adipate is used as a substitute for table salt . It is registered as a food additive under the number E359.

Individual evidence

1. ↑ ^{a b c d} 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. ↑ Entry at www.guidechem.com
4. ↑ IA Teslya, AI Tursina, LD Iskhakova, LM Avdonina, VV Marugin: "Crystal structure and thermal stability of ammonium adipate (NH ₄ ) ₂ C ₆ H ₈ O ₄ " in Journal of Structural Chemistry 1990 , 31 (6), S 956-960. doi : 10.1007 / BF00752171
5. ^ Entry in Wissenschaft-Online