Hydroquinone
CAS No.: 123-31-9
Product Name: Hydroquinone
CAS#123-31-9
Spec: Photographic grade
Package: 25kg/bag
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Yes, 9
Country of origin: China
CAS#123-31-9
Spec: Photographic grade
Package: 25kg/bag
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Yes, 9
Country of origin: China
Description
Spec of Hydroquinone :
| Items | Specification | Results |
| Appearance | White to off-white needle form crystal orfreely flowable crystalline powder | Off white needle form crystal |
| Assay | 99.5%min | 99.84% |
| Melting point | 171~175℃ | 172.8~173.4℃ |
| Residual on ignition | 0.05%max | 0.02% |
| Fe | 0.002%max | 0.0005% |
| Pb | 0.002%max | <0.001% |
| Solubility | Transparent, no insoluble matter | Complies |
