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R salt (2-Naphthol-3,6-Disodium Disulfonate)
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CAS NO.: 148-75-4
Molecular Formula: C10H6O7S2Na2
M.W: 348
Packing: 25kgs net plastic woven bags lined with plastic bags.
Uses: To produce edible pigment and acid-dyes, as well as light-sensitive copying paper after reacting with diazo salt. Structural formula:
60% |
Appearance |
Content(%) |
Purity(HPLC)% |
Schaeffer¡¯s salt(%) |
Free acid(%) |
80% |
Greyish white powder |
¡Ý60 |
¡Ý98 |
¡Ü1.5 |
¡Ü1.5 |
Common |
¡Ý80 |
¡Ý98 |
¡Ü1.0 |
¡Ü1.5 |
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