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| Basic properties | |
|---|---|
| Insoluble in chloroform residue | <0.5 |
| Residue after calcination | <0.2 |
| Heavy metals (Pb2+) | <0.0005 |
| Optical density of the solution 1: 250000 at the maximum spectrum, not less | >0,607 |
| Sensitivity to Lead | 1:20000000 |
| Maximum curve light absorption of solution 1: 250000 | 605 nm |





