Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt 속성
안전
Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt C화학적 특성, 용도, 생산
제조 방법
3-(4-Amino-2-sulfophenylamino)-2,3-dioxopropanoic acid diazo, coupled with 2-Hydroxybenzoic acid, grass acid base hydrolysis, again diazo, Coupled with resorcinol.
Properties and Applications
dark red to red light brown. Soluble in water for orange brown, slightly soluble in alcohol. The strong sulfuric acid for purple, diluted shallow orange for brown. The dye solution to join strong hydrochloric acid have orange brown precipitation; Add thick sodium hydroxide solution for dark purple.
Benzoic acid, 5-[[4-[(2,4-dihydroxyphenyl)azo]-3-sulfophenyl]azo]-2-hydroxy-, disodium salt 준비 용품 및 원자재
