C.I. Sulphur Yellow 9
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C.I. Sulphur Yellow 9
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CAS No:
1326-40-5
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Chemical Name:
C.I. Sulphur Yellow 9
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Synonyms:
C.I. Sulphur Yellow 9;C.I. 53010;Diresul Brilliant Yellow 5G;Immedial Yellow G;Sofral Brilliant Yellow G extra;Solfo Yellow G Supra;Sulfogen Yellow G;Sulphol Yellow 6G;Sulphur Yellow G;Pirocard Brilliant Yellow 5G;Acetamide,N-(2,4-dinitrophenyl)-,reaction products with phthalic anhydride and sodium sulfide (Na2(Sx));Atul Sulphur Yellow;Sulphur Yellow 9;12262-72-5
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CAS No:
C.I. Sulphur Yellow 9 Use and Manufacturing
Using 2, 4-dinitrochlorobenzene and phthalic anhydride as raw materials, first react 2, 4-dinitrochlorobenzene with ammonia to form 2, 4-dinitroaniline, which is then acylated with acetic anhydride. Then 133 parts of 2, 4-dinitroacetanilide and 93 parts of phthalic anhydride were added to the melted (95℃) 280 parts of sodium sulfide and 94 parts of sulfur, and salt was added. The temperature was raised to 130℃ for 10-11h. Then quickly increase the temperature to 180°C and keep it for 3-4h until the end of the reaction. Then it is cooled and crushed to obtain finished products.
Vulcanized tender yellow G is mainly used for dyeing and printing of cotton, hemp, viscose fiber, vinylon, bright and tender color, and good fastness. It is often dyed with sulfur blue CV in beige and green, and bright green sulfur in dyed green.
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