| Specifications |
| Assay (Cl) |
Min 99% |
| pH
(0.5M in water, 20 deg C) |
3.5 - 5.0 |
| Loss on drying (at 110 deg C) |
Max 0.2% |
| Residue on ignition (SO4, at 900 deg
C) |
Max 0.2% |
| Solubility (0.5 M in water,at 20 deg
C) |
Complete and colourless |
| Insoluble matter |
Passes filter test |
| Absorption max (0.5 M in water): |
|
| At
260 nm |
Max 0.015 |
| At
280 nm |
Max 0.010 | |
|