It is used as a relatively strong sequestrant. It is used to prevent platelet clumping in blood samples, thus used as an anticoagulant in donated blood.
Technical Details | |
CAS No | 18996-35-5 |
Mol. Formul | C6H7NaO7 |
Mol. Weigh | 214.11 |
Category | Buffering agent, Sequestrant |
Specification | |
Description | White, granular crystals or a white, crystalline powder |
Solubility | Free soluble in water; practically insoluble in ethanol (95%) |
Appearance of Solution | 10 % w/v solution is clear and colourless |
Identification | 10 % w/v solution gives reactions of citrates and sodium salts |
pH of 10 % solution | 3.4 to 3.8 |
Chloride | Not more than 50 PPM |
Sulphates | Not more than 150 PPM |
Oxalate | Not more than 300 PPM |
Heavy metals | Not more than 10 PPM |
Readily carbonisable substances | Should passes the test |
Arsenic | Not more than 0.4 % |
Loss on drying | Not more than 0.5 % w/w |
Assay (on dry basis) | Between 99.0 and 101.0 % w/w |
Standard Packing: 25 KG Polywooven craft bag with double inner polyethylene bag.