Factory Price Powder Trisodium Citrate Dihydrate CAS 6858-44-2 citric acid Sodium citrateAlso known as citrate, trisodium citrate. This product is white cubic crystal system crystallization or granular powder, odorless, cool, salty and slightly spicy. In 1.5ml water, 1g (25ºC) can be dissolved, insoluble in ethanol, stable in air, Na3C6H5O7·5H2O (pentahydrate) loses crystal water at 1450ºC and becomes anhydrous, and decompounds when it is hotter. No melting point, no boiling point. The rats were intraperitoneally injected with LD501549mg/kg. It can be used as acidity regulator, buffer, emulsifier and stabilizer.
Sodium citrate is commonly found in two kinds of hydrates: sodium citrate in dihydrate and sodium citrate in pentahydrate. The basic properties of the two sodium citrate hydrates are shown below.
Name | Trisodium citrate dihydrate | trisodium citrate pentahydrate |
Molecular weight | 294.1 | 348 |
CAS | 6132−04−3 | 6858−44−2 |
Density | 1.79 g/cm3 | 1.62 g/cm3 |
Storage method | Normal temperature preservation | Room temperature sealed storage |
Item | Standard |
Appearance | Colorless or white crystals or powder, odorless and tastes sour. |
Assay (%) | 99.5-100.5 |
Light Transmittance (%) | ≥ 95.0 |
Moisture (%) | 7.5-9.0 |
Readily Carbonisablle Substance | ≤ 1.0 |
Sulphated Ash (%) | ≤ 0.05 |
Chloride (%) | ≤ 0.005 |
Sulphate (%) | ≤ 0.015 |
Oxalate (%) | ≤ 0.01 |
Calcium (%) | ≤ 0.02 |
Iron (mg/kg) | ≤ 5 |
Arsenic (mg/kg) | ≤ 1 |
Lead | ≤ 0.5 |
Water Insoluble Substances | Filtration time not more than 1 min; Filter membrane basically doesn't change color; Visual mottled particles not more than 3. |
Packing | 25kg/bag |
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