Acid Dyes
Acid dyes are a type of dye used for dyeing and printing wool, silk, and polyamide fibers. They can also be used for coloring leather, paper, ink, cosmetics, etc. They have a complete color spectrum and bright colors. The dyeing process is carried out in an acidic dye bath, which is why they are named.
ENGLISH NAME: Acid Blue FG, Acid Brilliant Blue FCF
C.I. NO: 42090, Acid Blue 9；
CAS NO: 2650-18-2
EINECS NO: 223-339-8
MOLECULAR FORMULA: C37H38N3NaO9S3
MOLECULAR WEIGHT: 787.9
PRODUCT NAME：Acid Yellow 23
C.I. NO：19140；
CAS NO：1934-21-0
EINECS NO: 217-699-5
MOLECULAR FORMULA: C16H3N4Na3O3S2
MOLECULAR WEIGHT: 534.37
PRODUCT NAME：Acid Red 52
C.I. NO.：45100;
CAS NO：3520-42-1
EINECS NO: 222-529-8
MOLECULAR FORMULA: C27H29N2NaO7S2
MOLECULAR WEIGHT: 580.65
Acid dye refers to the dye molecules containing acid groups, also known as anionic dyes, and protein fiber molecules in the amino group to ionic bond, in acid, weak acid or neutral conditions. Acid dyes have complete chromatograms and bright colors. Their fastness to sun and wet treatment varies greatly with different dyes.
ENGLISH NAME:Nigrosine,Acid Nigrosine Black
C.I. NO.: Acid black 2
CAS NO: 8005-03-6