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2 Metric Ton |
Negotiable |
sodium 4-hydroxynaphthalene-1-sulphonate 1-Naphthol-4-sulfonic acid sodium salt 6099-57-6
Product name: 1-Naphthol-4-Sulfonic Acid sodium salt Molecular formula: C10H8O4S Molecular weight: 224.17
Product name: 1-Naphthol-4-Sulfonic Acid sodium salt
Molecular formula: C10H8O4S
Molecular weight: 224.17
Nature and use:
White or pale yellow ointmentWet product,Light yellow powderyDry product,It
is apt to dissolve it in water. This product from 1-Naphthylamine-4-Sulfonate sodium
hydrolysis etc. and react and make . Use as the intermedia of the azo dyes mainly
Quality Index
Name of index
|
Index
|
|
Wet product
|
Dry product
|
|
Appearance
|
white or pale yellow ointment
|
Light yellow powdery
|
1-Naphthol-4-Sulfonic Acid %
|
≥ 40.0
|
≥ 65
|
1-Naphthylamine-4-Sulfonic Acid %
|
≤ 1.20
|
≤ 1.20
|
SO2 %
|
≤ 0.30
|
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