Assay: 98%
Appearance: Gray powder
Capacity: 1MT/month
Packaging: 25kg/Fibur drum
Sample: available



Assay: 98%
Appearance: Gray powder
Capacity: 1MT/month
Packaging: 25kg/Fibur drum
Sample: available
Chemical Name:Disodium 3,6-dihydroxynaphthalene-2,7-disulphonate
CAS No: 7153-21-1
Molecular Formula: Ci0H6Na2〇8S
Chemical Structure:
Molecular weight: 364.26
Appearance: Gray powder
Assay:97.17%
Disodium 3,6-dihydroxynaphthalene-2,7-disulphonate Typical Properties
| Item | Results |
| Appearance | Gray powder |
| Boiling point | 398°C(lit.) |
| Melting point | 47 r |
| purity | 97.17% |
| Water | 0.6% |
| Iron | 9ppm |
1.Used as a sunning coupling component
2.Dye intermediate
Packing:25kg/drum
Delivery: 3-5 days after receipt the payment