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Sodium Naphthionate

Specification Sheet
Products name: Sodium Naphthionate     4-Amino-1-naphthalenesulfonic acid
 
Molecular Formula: C10H8NNaO3S.H2O
Cas No: 6035-47-8
Molecular Weight: 263.24
Cas no: 130-13-2
Appearance: Grey White Crystal
Melting point:

280 °C

Strength: 74.6%-75.8%
Water insolubles:

0.06%max

1-Naphthylamine: 0.04%max
Descriptions: 1-Amino-4-naphthalene sulfonic acid sodium salt is a greyish-white crystal. The sodium salt of industrial products contains two or four crystal water. It changes slowly into a rose colour in air. It is easily soluble in water and soluble in 95% of alcohol. Its chief use is employed in organic pigments or the sythesis of intermediates of azo-dyes.
Packages: 25kgs or 50kgs  iron drums, cartons and woven bags.
Storage & transportation: The product must be stored in shade, dry & well-ventilated warehouse. Avoid to be contacted with oxidizing chemicals and combustible organic substances. Keep it away from direct sunlight, heat, sparks and open flames. Carefully handle the product and avoid damaging the package.


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