Tartaric Acid

EP, USP (Tested for Endotoxin & Microbes)

CAS #:


Molecular Formula:



2,3-Dihydroxybutanedioic acid, Malic acid, 3-hydroxy-, Succinic acid, 2,3-dihydroxy

Molecular Weight:

150.09 g/mol


Tartaric Acid, Granular is used as an antioxidant, acidifier, flavour enhancer, stabilizer and sequestering agent. It is a white crystalline, diprotic sugar acid that occurs in many plants in a natural form and acts as a leavening agent when mixed with baking soda. Used as an antioxidant, it is one of the principal acids that are found in wine and is used in the industrial sector as a chelating agent.

Characters Unit Specification
Appearance white or almost white, crystalline powder
Assay % 99,7 -100,5
Identification complies
Loss on drying (105) ° C max. 0,2
Specific optical rotation (dried substance) +12 to +12,8
Oxalat ppm complies
Sulphate ppm max. 150 (USP)
Chloride ppm max. 100
Calcium ppm max. 200
Heavy metals ppm max.10
Residue on ignition / Sulphated ash ppm max. 0,1
Total aerobic microbial count IU/g max. 100
Total yeasts and moulds count cfu/g max. 50
E.coli cfu/g absent in 1g
Pseudomonas aeruginosa cfu/g absent in 1g
Staphylococcus aureus cfu/g absent in 1g absent
Salmonella cfu/g absent in 25g absent
Bacterial endotoxine IU/g max. 10

Shelf Life/Retest Date: Tartaric Acid can be kept for at least 2 years if stored under recommended conditions.

Storage/Shipping Conditions:

  • Hygroscopic. Protect from moisture.
  • Store at room temperature in the original container.
  • Store away from incompatible materials.
  • Keep container tightly closed in a dry and well-ventilated place.

Pack Sizes: 5 Kg

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