| Specifications |
| Citric acid trisodium salt dihydrate |
|
| Confirms to BP, USP |
|
| Assay (HClO2 titration) |
99 - 100.5% |
| Identity |
Passes test |
| Appearance of solution (100g/l) |
Clear and colorless |
| Insoluble matter |
Max 0.005% |
| Acidity or alkalinity |
Passes test |
| pH (50gm/l water 25 degC) |
7.5 - 9.0 |
| Chloride (Cl) |
Max 0.001% |
| Sulphate (SO4) |
Max 0.004% |
| Phosphate (PO4) |
Max 0.002% |
| Total nitrogen (N) |
Max 0.001% |
| Heavy metals (as Pb) |
Max 0.0005% |
| Iron (Fe) |
Max 0.0005% |
| Oxalate (C2H2O4) |
Max 0.002% |
| Tartarate (C4H6) |
Passes test |
| Readily carbonisable substances |
Passes test |
| Ammonium (NH4) |
Max 0.003% |
| Calcium (Ca) |
Max 0.005% |
| Arsenic (As) |
Max 0.0001% |
| Mercury (Hg) |
Max 0.0001% |
| Lead (Pb) |
Max 0.0001% |
| Water (by KF) |
11 - 13% |
| Loss on drying (180 deg C, 18 hrs) |
10 - 13% |
|
|
