Naphthol AS-OL

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Naphthol AS-OL
Posting date : Jun 08, 2007
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Free Member Scince Jun 08, 2007
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29-
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Molecular Weight: 293.34 Phsical 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 is sodium hydroxide solution. Specification: Grade A Grade B Appearance Brown to cream-colored uniform powder Brown to cream-colored uniform powder Shade Similar to the standard Similar to the standard I.M.P of dry product 160 159.5 Contact 98% 97% Content of bon acid 0.1% 0.3% Insolubles in alkali solution 0.3% 0.6% Fineness(resdiue on sieve of 60 mesh) 5% 5% Application: For producing insoluble azoic dyestuff and dyeing of cotton fiber and viscose fiber Packing: Woven bag, kraft paper bag, fiber drum or iron drum all package lined with plastic bag net

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