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16 janvier 2014

what is Sodium Tartrate?

Sodium Tartrate

 

Solubility: soluble in 9 times of cold water, 1.8 times of boiling water, not soluble in ethanol, ethyl ether.

Stability: stable under atmospheric pressure, avoid oxide contact. Heated to 100 ℃ dehydration generated anhydride, heated to 234 ℃ is decomposed in the dry air. Method of storage: keep containers sealed and store in a cool, dry place.

The synthetic methods

1. DL - tartaric acid dissolved in water, heating with sodium carbonate or sodium hydroxide crystallization and after neutralization, concentration, or its crystallization precipitation with ethanol.

2. Such as tartaric acid and molar volume of NaOH dissolves in water, the mixture of aqueous solution, cooling, or in the join in the solution of sodium tartrate molar volume of tartaric acid, such as the solution to cool. Adding ethanol when necessary, can get monohydrate sodium tartrate.

3. The tartaric acid soluble in water, heating, filtering ten hydrated sodium carbonate neutralization. Cooling filtrate concentration, stirring. After the suction filter crystallization, washing with water, dry place at room temperature, can be single product sodium tartrate.

use

Chelating agent; Acidity adjusting agent. Buffer; Emulsifying salts; Antioxidants. The antioxidant synergist.

Cool and refreshing beverage, wine, etc (adjustable) of taste. Share can make the soft sour of tartaric acid and tartaric acid. Also used in oil, jam, jelly, margarine, meats and sausages. Used for candy, jam, jelly, sparkling wine. Biochemical research. Analysis of the determination of vanadium, calibration Karl fischer reagent.

Toxicology data

Acute toxicity: mouth the LD50 in mice: 3686 mg/kg; Mouth the LD50 of rats: 7500 mg/kg

Ecology data

Is somewhat harmful to water, don't let the noise of undiluted or a large number of product contact groundwater, the waterway or sewage system, without permission, do not put the material into the surrounding environment

 

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