Trisodium citrate has the chemical formula of Na3C6H5O7. It is sometimes referred to simply as sodium citrate, though sodium citrate can refer to any of the three sodium salts of citric acid.
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Trisodium citrate has the chemical formula of Na3C6H5O7. It is sometimes referred to simply as sodium citrate, though sodium citrate can refer to any of the three sodium salts of citric acid.
| Product Name | SODIUM CITRATE IP/BP/EP/USP |
| Synonym | TRISODIUM CITRATE DIHYDRATE IP/BP/EP/USP |
| Product Code | SODI38 |
| Chemical Formula | Na3C6H5O7•2H2O |
| Molecular Weight | 294.11 g/mol-1 |
| CAS No. | 6132-04-3 |
| Standard Pack Size | 25 KG |
| Storage | Store in cool and dry place. |
| Retest Period | 1 YEAR |
| Application |
| Sr. No. | Test | Specifications | Reference |
| 1. | Description | White, granular crystals or a white, crystalline powder; odourless; slightly deliquescent in moist air. | IP/BP/EP/USP |
| 2. | Solubility | Freely soluble in water, practically insoluble in ethanol (95 %) and in ether. | IP/BP/EP/USP |
| 3. | Identification | (A) The reactions of ‘Sodium salts’. (B) The reaction A of ‘Citrates’. (C) Upon ignition, it yields an alkaline residue which effervescences when treated with 3 N hydrochloric acid. | (A) & (B) IP/BP/EP/USP (C) USP |
| 4. | Appearance of Solution | Solution A is clear and colourless. | IP/BP/EP |
| 5. | Acidity or Alkalinity | (A) Not more than 0.5 ml of 0.05 M sulphuric acid or 0.1 M sodium hydroxide is required. (B) No pink color is produced. | IP/BP/EP |
| 6. | Arsenic | Not more than 2 ppm. | IP |
| 7. | Heavy Metals | Not more than 10 ppm. | IP/BP/EP |
| 8. | Chlorides | Not more than 50 ppm. | IP/BP/EP |
| 9. | Oxalate | Not more than 300 ppm. | IP/BP/EP |
| 10. | Sulphates | Not more than 150 ppm. | IP/BP/EP |
| 11. | Tartrates | No crystalline precipitate is formed. | IP/USP |
| 12. | Readily Carbonisable Substances | The solution is not more intensely coloured than reference solution YS2 or GYS2. | IP/BP/EP |
| 13. | Water | (A) Between 11.0% w/w to 13.0% w/w. (B) Between 10.0% w/w to 13.0% w/w. | (A) IP/BP/EP (B) USP |
| 14. | Assay (By Titrimetry) | (A) Not less than 99.0% w/w and not more than 101.0% w/w of C6H5Na3O7, on anhydrous basis. (B) Not less than 99.0% w/w and not more than 100.5% w/w of C6H5Na3O7, on anhydrous basis. | (A) IP/BP/EP (B) USP |
| 15. | Bulk Density | Between 0.9 g/ml to 1.1 g/ml | IHS |
| 16. | Tap Density | Between 1.1 g/ml to 1.3 g/ml | IHS |
| 17. | Sieve Analysis (A) (-) 20# (B) (-) 30# (C) (-) 40# (D) (-) 60# | (A) 100.00%w/w (B) NLT 90.00%w/w (C) NLT 80.00%w/w (D) NLT 20.00%w/w | IHS |