Hangzhou, Zhejiang, China
Member Since: 2013
Business Type: Trading Company
Molecular Weight: 646.63
CAS Registry Number:6408-88-4
Manufacturing Methods : p-Methylaniline (2 Moore) and sulfur (4.5 atomic ratio) in 200 ~ 280 ºC heat, with hair smoke from the sulphonated sulfuric acid alkali primrose spirit, its product diazo, coupled with 2-Hydroxybenzoic acid.
Properties and Applications: red light yellow. Soluble in water for golden brown, slightly soluble in alcohol. The strong sulfuric acid is palm in light orange, diluted for lemon yellow. The dye solution to join strong hydrochloric acid has golden precipitation; Add thick sodium hydroxide solution for orange brown precipitation.
|Standard||Acid Resistance||Alkali Resistance||Light Fastness||Soaping||Water|