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| Coupling Agent 236 |
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| 2,3-Dihydroxynaphthalene-6-sulfonate (Dihydroxy-R-salt) |
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| It's mainly used as coupler for diazo photosensitive paper. It's also used as additive of food. |
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Content: 99% 98% 97% 90% 85%
M.W: 262
Fe: 10PPM 20PPM 40PPM
Aqueous solution: Light yellow transparent liquid
PH value: 3-6
Organic impurity:1%
Storage: Stored in dark and dry place for two years.
Appearance: White powder or crystal.
http://www.diazonium.com |
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