CALCIUM TARTRATE

CAS NO.：3164-34-9
Empirical Formula: C4H8CaO6
Molecular Weight: 192.18
MDL number: MFCD00068402
EINECS: 221-621-5
SAFETY DATA SHEET (SDS)
Update Date: 2026-01-18 19:20:56

What is CALCIUM TARTRATE?

Description

Calcium tartrate is a by product of the wine industry, prepared from wine fermentation dregs. It is the calcium salt of tartaric acid, an acid most commonly found in ripe grapes. Its solubility decreases with colder temperature, which results in the forming of whitish (in red wine often reddish) crystalline clusters as it precipitates. It finds use as a food preservative and acidity regulator. Like tartaric acid, calcium tartrate has two asymmetric carbons, hence it has two chiral isomers and a non-chiral isomer (meso-form). Most calcium tartrate of biological origin is the chiral levorotatory (–) isomer.

Chemical properties

rhomb; white crystal(s); uses: food preservative, antacid [HAW93] [CRC10]

Definition

ChEBI: Calcium tartrate is an organic calcium salt and a tartrate salt.

Flammability and Explosibility

Not classified

Properties of CALCIUM TARTRATE

Melting point:	decomposes [CRC10]
alpha	[α]D20 +5.0～+8.0゜ (c=5, dil. HCl)
Density	1.878[at 20℃]
vapor pressure	0Pa at 25℃
solubility	soluble in dilute acid solutions; slightly soluble in ethanol
form	powder
color	white
Water Solubility	g/100g H2O: 0.026 (0°C), 0.034 (20°C), 0.130 (80°C) [LAN05]; soluble dilute HCl, HNO3 [MER06]
Merck	13,1714
CAS DataBase Reference	3164-34-9(CAS DataBase Reference)
EPA Substance Registry System	Butanedioic acid, 2,3-dihydroxy- (2R,3R)-, calcium salt (1:1) (3164-34-9)