Hydroquinone, Photo GradeCAS# 123-31-9 |
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| Property | Unit: | Specification: |
|---|---|---|
| Apperance | White or off-white powdery crystal | |
| Content | % (m/m) | 99.0 - 101.0 |
| Melting Point | °C | 171-175 |
| Solubility | Up to Standard | |
| Pb | % | 0.002 Maximum |
| Fe | % | 0.002 Maximum |
| Residue after Ignition | % | 0.05 Maximum |
