Customization: | Available |
---|---|
CAS No.: | 6132-04-3 |
Packaging Material: | Paper |
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Specifications | BP93, BP98, USP30, E331 |
CAS NO | [6132-04-3] [68-04-2] |
Formula | C6H5Na3O7· 2H2O |
Formula wt | Dihydrate 294.10 |
CAS | Dihydrate [6132-04-3] |
Specificity | Colorless or white crystalline granule or crystalline powder odorless; Taste salty and cold, soluble in water, difficulty in ethanol; Slightly deliquescence in moist air, pH7.5-9 in 5% aqueous solution, when heated to 150° C, it may lose crystal water. |
Packing | 25kg net paper bag or 1mt big bag with PE liner. |
Name of index | BP98 | E-331(iii) |
Description |
Crystalline white powder or colourless crystals |
|
Content |
99.0-101.0% |
≥99.0%( anhydrous basis) |
Acidity and Alkalinity | Accord with the test |
-- |
Sulphate,≤% |
0.015 |
-- |
Heavy metals(As Pb), ≤% |
0.001 |
0.0005 |
Oxalate(As H2C2O4), ≤% |
0.03 |
0.01 |
Easy carbonify substance |
Accord with the test |
-- |
Chloride, ≤% |
0.005 |
-- |
Loss on drying, |
11.0-13.0% |
≤13.5% |
pH value(5% aqueous solution) |
-- |
7.5-9 |
Arsenic(As),≤ppm |
-- |
1 |
Lead(Pb),≤ppm |
-- |
1 |
Mercury(Hg),≤ppm |
-- |
1 |