Sodium citrate

Sodium citrate formula C6H5Na3O7 · 2H2O Molecular Weight 294.10 CAS No. 6132-04-3 nature: the white crystalline powder or granules. The relative density of 1.857. Lose crystal water at 150 ℃, continue heating break. Dissolved in water, insoluble in alcohol, pH of the aqueous solution of about 8. Odorless, cold salty. Stability in the air. Preparation: citrate by sodium hydroxide or sodium bicarbonate derived. Sodium bicarbonate was heated under stirring to dissolve in water, citric acid was added, continue to heat up to 85-90 ℃, adjusted to pH 6.8. Plus active carbon, filtered hot. The filtrate was concentrated under reduced pressure, crystallized after cooling. Filtering, washing, drying, sodium citrate. Uses: This product is used for flavoring food processing, stabilizers, nontoxic electroplating industry for buffers and vice complexing agent, the pharmaceutical industry as an anticoagulant, expectorant and diuretic drugs, also used in brewing, injection submitted shadow medicines.