Ammonium tartrate

Structural formula
L - (+) - diammonium tartrate
General
Surname	Ammonium tartrate
other names	Diammonium tartrate L - (+) - diammonium tartrate
Molecular formula	C 4 H 12 N 2 O 6
Brief description	colorless to white crystalline odorless solid
External identifiers / databases
CAS number 3164-29-2 EC number 221-618-9 ECHA InfoCard 100.019.654 PubChem 2724224 ChemSpider 17459 Wikidata Q18663386
properties
Molar mass	184.15 g mol −1
Physical state	firmly
density	1.60 g cm −3 (20 ° C)
Melting point	215-260 ° C (dec.)
solubility	Easily soluble in water (439 g l −1 at 20 ° C)
safety instructions
GHS labeling of hazardous substances 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 .

Ammonium tartrate , (NH ₄ ) ₂ C ₄ H ₄ O ₆ , is the diammonium salt of L -tartaric acid . It is a colorless to white crystalline, odorless solid and is easily soluble in water.

Physical Properties

Ammonium tartrate crystallizes in a monoclinic crystal system with the space group P 2 ₁ (space group no. 4) with the lattice parameters a = 708 pm, b = 612 pm, c = 880 pm, β = 92.42 ° and Z = 2.

literature

• RF Weinland, W. Stille: About the addition of crystalline hydrogen fluoride to oxalates and ammonium tartrate . In: Justus Liebig's Annals of Chemistry . Volume 28, No. 2, 1903, pp. 149-153, doi: 10.1002 / jlac . 190332 80205 .

Individual evidence

1. ↑ ^{a b c d e f} Entry on ammonium tartrate in the GESTIS substance database of the IFA , accessed on March 11, 2020(JavaScript required) .
2. ^ VS Yadava, VM Padmanabhan: The crystal structure of ammonium tartrate. In: Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry. 29, pp. 493-498, doi: 10.1107 / S0567740873002803 .