| Specifications |
| Orthoboric acid |
|
| Confirms to IP specification |
|
| Assay (by acidimetry) |
99.5 - 100.5% |
| Appearance of solution |
Passes test |
| Substances insoluble in alcohol |
Passes test |
| pH
(3.3%, water) |
3.8 - 4.8 |
| Sulphate (SO4) |
Max 0.04% |
| Heavy metals (as Pb) |
Max 0.0015% |
| Arsenic (As) |
Max 0.001% |
| Organic Impurities |
Passes test |
| Loss on drying (5 hrs.over silica
gel) |
Max 0.5% | |
|