Apearance colorless crystal or white crystalline powder, with sourness, stable in the air
Chemical name (+)-Dihydroxy succinic acid; L(+)-2,3-dihydroxy butanedioic acid
[Molecular Weigh]150.09 [CAS Number]133-37-9 [Character]Colorless crystals or white powder, without odor, with sour taste, stable in air, compound of equal quantity of dextrorotatory and levorotatory tartaric acid, containing one or two molecule crystalline water and losting water when heated to 100°C, specific gravity 1.697. Its solubility in water is 20.6%,in ether is about 1% and 5.01% in ethanol.
Melting point: °C
heavy metals(as Pb)
Arsenic (as As)
rediduce on drying
redicue on ignition
readily oxidizable substance
Main function and purpose
This product is widely used in trades such as foodstuff,medicine,chemical industry and light industry etc. ,and is chiefly used to make the tartaric acid salts , like antimony potassium tartrate, potassium sodium tartrate . Served as beer vesicant and foodstuff sourness agent and flavoring etc at the foodstuff trade and its sourness is the citric acid 1.3 times , and especially is suitable to do the sourness agent of the grape juice. This article is appraised as the excellent food additive by the FAO/WHO experts committee . It also has the very important effect in tannage, photograph , glass, enamel and telecommunication equipment etc..