Sr. No. | Test | Specifications | Reference |
1. | Description | Colorless crystal or white, crystalline powder. | USP |
2. | Solubility | Hydrous form freely soluble in water and very soluble in boiling water. Insoluble in alcohol. | USP |
3. | Identification | (A) Comply with Test for ‘Sodium’.
(B) Comply with the Test for ‘Citrate’.
(C) Upon ignition, it yields an alkaline residue which effervescences when treated with 3 N hydrochloric acid. | USP |
4. | Alkalinity | No pink color is produced. | USP |
5. | Water | Not more than 1.0 % at 180° C for 18 hours | USP |
6. | Tartrate | No crystalline precipitate is formed. | USP |
7. | Assay (By Titrimetry) | Not less than 99.0% w/w and not more than 100.5% w/w of C6H5Na3O7, on anhydrous basis. | USP |