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Item Index
Content 99.5% Min
Specific Rotation [α]D25℃ -12°~-12.8°
Drying loss 0.3% Max
Sulfate 0.05% Max
Heavy Metal(as Pb) 0.001% Max
Ignition residue 0.1% Max
Optical purity 99.7% Max

Packing & Storage

Packingin 25kg bag
Storage20℃, 2 years.
ShippingRoom temperature in China; may vary elsewhere

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Tel: 0086-25-52397805
E-mail: info@tartaric-acid-china.com

General Information

Frequently Asked Questions

Chemical Properties
Tartaric acid exists in three stereoisomers: tartaric acid, l-tartaric acid, and meso-tartaric acid. The optical activity of the mixture of equal amounts of D-isomer and L-isomer cancels each other out, which is called racemic tartaric acid. The meso body does not exist in nature and can be synthesized chemically. All tartaric acids are colourless crystals that are readily soluble in water.

Tartaric acid is widely used as an acidulant in beverages and other foods, similar to citric acid. Tartaric acid is used in combination with tannins as a mordant for acid dyes and is also used in some developing and fixing operations in the photographic industry. Its iron salts are photosensitizing, so they can be used to make blueprints. Tartaric acid can be complex with various metal ions and can be used as a cleaning and polishing agent for metal surfaces. Potassium sodium tartrate (Rochelle’s salt) can be used to prepare Fehling’s reagent. It can also be used in medicine as a laxative, diuretic, and intermediate of Cincofen. Its crystal has piezoelectric properties and can be used in the electronics industry.

It is mainly used as a sour agent, biochemical reagent, racemate resolving agent and pharmaceutical resolving agent in beverages, candy, bread and gelatin. It is also used in photography, canning, printing and dyeing, pottery, and preparation of other resolving agents, salts, esters, etc. and as a pharmaceutical resolving agent, food additive, biochemical reagent, etc.