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Pigment intermediate

Pigment intermediate
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Product Code : Cowin Industry 32
Brand Name : Cowin Industry
Product Description
Products Introduction of  Naphthol AS Series
Product CAS NO. Appearance Color Shade Strength Purity≥% Melting point≥οC Alkali insoluble ≤% Bon Acid Content≤% Moisture≤%
Naphthol AS 92-77-3 Beige powder similar 100±2% 99 246 0.15 0.2 1
Naphthol AS-BS 135-65-9 Yellow powder similar 100±2% 98 246 0.2 0.8 1
Naphthol AS-E 92-78-4 Light beige powder similar 100±2% 98.5 258 0.2 0.3 1
Naphthol AS-D 135-61-5 Beige brown powder similar 100±2% 98.5 193 0.3 0.2 1
Products Introduction of  Bon Acid
Product CAS NO. Appearance Content% Melting pointοC Bata-Naphthol Content% Alkali insoluble % 2,6 acid content% 1,2 acid content% Moisture %
2,3 acid 92-70-6 Light yellow even powder ≥98.5 ≥218 ≤0.6 ≤0.2 ≤0.3 Not detected ≤0.3
2-Naphthol Introduction
Product CAS NO. Appearance Content% Naphtha lene % Melting pointοC α-Naphthol Content% 2,2-Joint Naphthol % Moisture%
2-Naphthol 135-19-3 White crystalline powder or flakes ≥99% ≤0.5 ≥120 ≤0.5 ≤0.5 ≤0.3

Cowin Industry Limited Shandong Hirch Chemical Co., Ltd.
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