Naphthol AS
Detailed Product Description
Molecular formula: C17H13O4N2
Molecular weight: 261.31
Physical and chemical properties:
Appearance is light cream-colored uniform powder. Initial melting point is more than 247°C. Soluble in alcohol and sodium hydroxide solution. And its solution is yellow clear liquid. It can couple with diazo salts of aromatic anilines to produce insoluble azoic dyes.
Specification:
Appearance: light yellow cream-colored powder
Content: ≥98.5%
I.M.P. of dry product: ≥247.2°C
Insolubles in alkali solution: ≤0.1%
Shade after coupled with scarlet red base G: similar
Strength after coupled with scarlet red base G: 100±5
Content of Bon acid: ≤0.1%
Fineness: ≤5%(residue through 60mesh)
Application: For manufacturing organic pigments and dyeing and printing cotton fibre, viscose fibre and a part of synthsis fibre.
Packing: In 25kgs net in iron drums, woven bags, kraft paper bags, fibre drums, all lined with plastic bag.
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Company Info
Huanghua Bohai Chemical Co., Ltd.
[China (Mainland)]
[Verified Member]
City: Cangzhou
Province/State: Hebei
Country/Region : China (Mainland)
Business Type:Manufacturer
Online Postings: Products






