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Naphthol AS/OL C.I Naphthol 20(37530)
Azoic Dyes
strutural formula:
Molecular Formula: C18H15O3N
Molecular weight: 293.34
Physical and chemical properties:
The appearance is buff brown uniform powder. Initial melting point is 167℃. Insoluble in water. Soluble in alcohol. It is yellow transparent solution in sodium hydroxide solution.
Specification:
Appearance: Brown to cream-colored uniform powder
Shade: Similar to the standard
I,M.P of dry product: ≥160℃
Content: ≥98%
Content of Bon acid: ≤0.1%
Insolubles in alkali solution: ≤0.3%
Fineness: ≤5%(residue through 60 mesh)
Application: For producing insoluble azoic dystuff and dyeing of cotton fibre and viscose fibre.
Packing: In 25kgs woven bags, paper bags, polywood drums and iron drums all lined with plastic bag. {BACK} |
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