One of the Main Organic Wines——Tartaric Acid
ãEUREURãEUREURWe know that wine is very delicious, but you know what constitutes its main organic acids.
ãEUREURãEUREURTartaric acid, (CAS 133-37-9), 2, 3 - dihydroxy succinic sour, is a kind of carboxylic sour, exists in various plants, such as grapes, and tamarind, is also one of the main organic acids in wine.As food add antioxidant, can make the food has a sour taste.Tartaric sour is the purpose of the largest beverage agent.Also for raw material medicine industry.In the mirrors industry,sour is an important auxiliary agent and reducing agent, can control the formation of silver mirror speed and get very uniform coating.
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ãEUREURãEUREURIsomer and performance: tartaric acid molecule has two asymmetric carbon atoms, so there are three kinds of optical isomers, namely left-handed sour, D - sour or a right-handed tartaric acid or L - sour, meso sour.The same amount of sinistral sour and right-handed sour mixture of racemic sour or DL - tartaric sour.Natural tartaric acid is right handed sour.Industrial production is the largest is the racemic sour.Type D sour is colorless transparent crystals or white crystalline powder, odourless, taste very sour, relative density 1.7598.The melting point of 168 ~ 170 â,,?.Soluble in water, soluble in methanol, ethanol, slightly soluble in ether, insoluble in chloroform.Type DL sour to colorless transparent fine crystal, no odor, very acid, relative density 1.697.Melting point of 204 ~ 206 â,,?, 204 â,,? decomposition.Soluble in water and ethanol, slightly soluble in ether, insoluble in toluene.Tartrate stability in the air.
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ãEUREURãEUREURL - tartaric sour widely exist in fruits, especially grapes.Is the cheapest light active tartaric acid, and is often referred to as the "natural sour.Industry, the main or even the only source is still L - sour natural products.Wine brewing industry produce by-products tartar, L - sour by acidizing can be obtained.Italy is L - tartaric acid in the world's largest producer, this was related with the country to build the size of the wine.D - tartaric acid in the natural products are rare, but at a higher content of exists in a plant in Mali.Racemic tartaric sour in industry by hydrogen peroxide and maleic anhydride hydrolysis was prepared, after South Africa is a major producer.
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ãEUREURãEUREURTartaric acid is the biggest use of feed additives.And then the drug industrial raw materials.Is very important in contemporary organic synthesis of chiral ligands and chiron, can be used for the preparation of chiral catalysts for many famous, as well as chiral source to the synthesis of complex natural product molecules.Tartaric acid (CAS NO.133-37-9)is a kind of antioxidant, has been employed in the food industry.Biochemical tests can use it as deoxidizer.
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ãEUREURãEUREUROk.Let's end here. I will pull out more about chemical raw materials later.Thanks!
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ãEUREURãEUREURTartaric acid, (CAS 133-37-9), 2, 3 - dihydroxy succinic sour, is a kind of carboxylic sour, exists in various plants, such as grapes, and tamarind, is also one of the main organic acids in wine.As food add antioxidant, can make the food has a sour taste.Tartaric sour is the purpose of the largest beverage agent.Also for raw material medicine industry.In the mirrors industry,sour is an important auxiliary agent and reducing agent, can control the formation of silver mirror speed and get very uniform coating.
ãEUREURãEUREUR
ãEUREURãEUREURIsomer and performance: tartaric acid molecule has two asymmetric carbon atoms, so there are three kinds of optical isomers, namely left-handed sour, D - sour or a right-handed tartaric acid or L - sour, meso sour.The same amount of sinistral sour and right-handed sour mixture of racemic sour or DL - tartaric sour.Natural tartaric acid is right handed sour.Industrial production is the largest is the racemic sour.Type D sour is colorless transparent crystals or white crystalline powder, odourless, taste very sour, relative density 1.7598.The melting point of 168 ~ 170 â,,?.Soluble in water, soluble in methanol, ethanol, slightly soluble in ether, insoluble in chloroform.Type DL sour to colorless transparent fine crystal, no odor, very acid, relative density 1.697.Melting point of 204 ~ 206 â,,?, 204 â,,? decomposition.Soluble in water and ethanol, slightly soluble in ether, insoluble in toluene.Tartrate stability in the air.
ãEUREURãEUREUR
ãEUREURãEUREURL - tartaric sour widely exist in fruits, especially grapes.Is the cheapest light active tartaric acid, and is often referred to as the "natural sour.Industry, the main or even the only source is still L - sour natural products.Wine brewing industry produce by-products tartar, L - sour by acidizing can be obtained.Italy is L - tartaric acid in the world's largest producer, this was related with the country to build the size of the wine.D - tartaric acid in the natural products are rare, but at a higher content of exists in a plant in Mali.Racemic tartaric sour in industry by hydrogen peroxide and maleic anhydride hydrolysis was prepared, after South Africa is a major producer.
ãEUREURãEUREUR
ãEUREURãEUREURTartaric acid is the biggest use of feed additives.And then the drug industrial raw materials.Is very important in contemporary organic synthesis of chiral ligands and chiron, can be used for the preparation of chiral catalysts for many famous, as well as chiral source to the synthesis of complex natural product molecules.Tartaric acid (CAS NO.133-37-9)is a kind of antioxidant, has been employed in the food industry.Biochemical tests can use it as deoxidizer.
ãEUREURãEUREUR
ãEUREURãEUREUROk.Let's end here. I will pull out more about chemical raw materials later.Thanks!
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