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Product Code: 4.0570
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L-Tartaric acid

Formula C4H6O6
Chemical formula HOOCCH(OH)CH(OH)COOH
Density 1.76 g/cm3 (20°C)
Molar mass 150.09 g/mol
Bulk density ~500 kg/m3
CAS number 87-69-4
HS Code 29181200
EC number 201-766-0
Storage Without limitation
SDS available
R phrase R 36
S phrase S 24/25
Odour odourless
Form Solid
Color white
Ignitition temprature 425 °C
p H 1.6 (100g/l 20 °C)
Solubility in water 71390 g/l (20°C)
Solubility in ethanol soluble (20°C)
Flash point 210 °C
Melting point 168 – 170 °C
Vapour pressure low
Thermal decomposition >170 °C
Assay 99.7-100.5 %
Description Conforms
Identification Conforms
Solubility Conforms
Optical rotation +12.0 to +13 °
Loss on drying 0.5 %
Sulfated dsh 0.1 %
Sulfate Conforms
Heavy metals 0.001 %
Resicual soivents Conforms
Limit of Oxalate Conforms

🏭⚗️ Synthesis
Tartaric acid is mainly obtained from natural sources, especially as a by-product of winemaking. It is extracted from potassium bitartrate (cream of tartar). Synthetic production from maleic or fumaric acid exists but is less common.
🧪 Applications
Tartaric acid is widely used in food as an acidulant and leavening agent. It’s also used in pharmaceuticals, cosmetics, and metal cleaning. In chemistry, it helps in metal ion masking and chiral resolution.
⚠️Hazards
It is generally safe in small amounts, but large doses can cause irritation to the skin, eyes, and digestive system. Inhaling its dust may irritate the lungs. Proper handling and protective equipment are recommended.
Environmental Impact
Tartaric acid is biodegradable and has low environmental toxicity. However, excessive use or improper disposal may slightly affect soil or water pH levels.