Sulphur Black 1 CAS No.1326-82-5

Dynasul dyes are sulphur dyes for cotton with good wash fastness Dynasul C.I. Sulphur CAS No. Characteristics Black BR/B Black 1 1326-82-5 Reddish to Greenish Black, Also available in solubilised form Properties and Applications: green black and blue black. Black uniform powder. Insoluble in water and Etanol. In the Sodium sulfide solution solubility is good, for green black; Add Sodium hydroxide and Sodium sulfide solution of colour and lustre is blue; Add hydrochloric acid Sodium sulfide solution to have green black precipitation; In the cold part of concentrated sulfuric acid solution, after heating for deep green light blue, further heating into dark blue; In 25% of fuming sulfuric acid for black blue, dilution after green black precipitation. Dyeing content in alkaline insurance powder solution for yellow olive…