| Synonyms | Tricalcium citrate
Tribasic calcium citrate
|
| Definition | |
| Chemical name | Tricalcium citrate |
| Tricalcium salt of 2-hydroxy-1,2,3-propanetricarboxylic acid |
| Tetrahydrated tricalcium salt of citric acid |
| Einecs | 212-391-7 |
| Chemical formula | (C6H6O7)2Ca3·4H2O |
| Molecular weight | 570,51 |
| Assay | Not less than 97,5 % on the anhydrous basis |
| Description | Fine white powder |
| Identification | |
A.Positive tests for citrate and for calcium | |
| Purity | |
| Loss on drying | Not more than 14,0 % determined by drying at 180 oC for four hours |
| Oxalates | Not more than 100 mg/kg expressed as oxalic acid, after drying |
| Fluoride | Not more than 30 mg/kg (expressed as fluorine) |
| Arsenic | Not more than 1 mg/kg |
| Lead | Not more than 1 mg/kg |
| Mercury | Not more than 1 mg/kg |
| Heavy metals (as Pb) | Not more than 5 mg/kg |
| Carbonates | Dissolving 1 g of calcium citrate in 10 ml 2 N hydrochloric acid must not liberate more than a few isolated bubbles |