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L-Tartaric Acid
L(+) -tartaric acid is one of three chemical isomers of tartaric acid. It is a natural configuration, also known as d-tartaric acid, which widely exists in many plants, such as grapes and tamarind fruits. The unltrafine grade of L+Tartaric acid is wlways used into coment or gypsum mortar, plaster to provide retarding properties.
Chemical Molecular Formula:C4H6O6
Molecular weight:150.09
CAS No.: 87-69-4
Specification
Items
Index
Appearance
Ultrafine white powder
Purity
95.0% Min.
Arsenic
0.0002% Max.
Heavy metals as Pb.
2 mg/KG Max.
Mesh ＜63Micro
97% Min.
Loss on drying
0.5% Max.
Residue on ignition
0.1% Max.
Specific rotation[a]D25℃
12°-13°
Anti-caking content
4.5-5.5%