| Description |
Colorless crystals, or white, crystalline powder
|
Solubility |
Hydrous form very soluble in boiling water. Freely soluble in water; insoluble in alcohol.
|
| Identification |
-
|
Identification 'A' |
Sodium : Passes the general test for sodium
|
| Identification 'B' |
Citrate : Passes the general test for citrate
|
Identification 'C' |
Upon ignition, it should yields an alkaline residue that effervesces when treated with 3 N hydrochloric acid
|
| Assay |
99.0% - 100.5% (on anhydrous basis)
|
Tartrates |
No crystalline precipitate should be formed
|
| Specific tests |
-
|
Alkalinity |
No pink colour should be produced by 1 drop pf phenolphthalein TS
|
| Loss on drying (180°C; 18 hrs) |
10.0 to 13.0 %
|