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Tartaric Acid

Tartaric acid Information: Tartaric acid (tartaric acid), 2, 3- two hydroxybutyrate, is a kind of carboxylic acid. It is found in many plants, such as grape and tamarind, and is also one of the main organic acids in wine. Due to the presence of two asymmetric carbon atoms in the molecular...

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Tartaric acid

Information:

Tartaric acid (tartaric acid), 2, 3- two hydroxybutyrate, is a kind of carboxylic acid. It is found in many plants, such as grape and tamarind, and is also one of the main organic acids in wine. Due to the presence of two asymmetric carbon atoms in the molecular structure, there are left-handed (L-tartaric acid) and right-handed (D-tartaric acid), meso-form (MESO-tartaric acid) and racemic (DL-tartaric acid). ).


Feature

Tartaric acid is a colorless crystalline or white crystalline powder, odorless, sour and stable in air. It often contains one or two crystal waters, and it will lose crystal water when heated to 100 °C. The density is 1.697g/cm3, the water solubility is 20.6%, the solubility in ether is about 1%, and the solubility in ethanol is 5.01%.

 

Application:

Tartaric acid is widely used in food, medicine, chemical, light industry and other industries。

1.In the chemical industry, mainly used in the manufacture of tartrate salts, such as potassium bismuth tartrate, sodium potassium tartrate and so on.

2.In the food industry, used as a beer foaming agent, food sour agent, flavoring agent, etc. Its acidity is 1.3 times that of citric acid, and it is especially suitable as a sour agent for grape juice. This product has been identified as an excellent food additive by the FAO/WHO Expert Committee.

3.In the pharmaceutical industry, tartaric acid can be used as a pharmaceutical intermediate and as a highly effective resolving agent.

4.In the textile industry, tartaric acid and tannin can be used as a dyeing agent for acid dyes.

5.It also plays a very important role in tanning, photography, glass, enamel, telecommunications equipment and other industries.

 

Specification

Index name

Monohydrate

Anhydrous

tartaric acid mass fraction /%≥

99.5

99.5

Melting point range /%

200~206

200~206

Sulphate /%≤

0.04

0.04

Pb%≤

0.001

0.001

As%≤

0.0002

0.0002

Heating reduction /%≤

11.5

0.5

Burning residue /%≤

0.10

0.10

 

Note

Tartaric acid can irritate to eyes, respiratory system and skin. So, we must pay attention to the following:

1.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

2.Wear suitable gloves.

3.Wear eye / face protection.

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