|
Dihydroxy-R-salt (2,3-Dihydroxynaphthalene-6-sulfonate)
M.W.:262
Structure
Formula:
Quality standard
specification
| Fe:
|
10PPM
20PPM 40PPM |
| Content: |
99%
98% 97% 90% 85% |
| Aqueous
solution: |
Light
yellow transparent liquid |
| PH
vlaue: |
3-6 |
| Organic
impurity: |
 1% |
| Packing:
|
Plastic
bag containing 25kg 50kg
501b of product within the
knit bag for export. |
| Appearance:
|
White
powder or crystal |
| Storage:
|
Stored
in dark dry place for two
year |
Use:
It is mainly used as coupler
for diazo photosensitive paper.
It also used as additive. 
|
