Direct Brown 20
Direct Brown 20 Basic information
- Product Name:
- Direct Brown 20
- Synonyms:
-
- Direct Brown 20
- C.I.Direct Brown 20:C.I.30060
- MW:
- 0
- Mol File:
- Mol File
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Direct Brown 20 Usage And Synthesis
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, and then and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? ?diazo, and Benzene-1,3-diamine coupled to a product matches.
Properties and Applications
brown. Soluble in water for red light brown. The strong sulfuric acid for red light blue, for yellow brown after diluted. The dye solution to join strong hydrochloric acid have dark brown precipitation; With strong sodium hydroxide solution for yellow brown, then a red light brown precipitation.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| AATCC | 4 | 4 | 2 | 2-3 | 2-3 | ||
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Direct Brown 20()Related Product Information
- Direct Brown 223
- Direct Brown 206
- CI34035
- Direct Brown 227
- 5-[[4'-[[8-[[2,4-Diamino-5-[(4-sodiosulfophenyl)azo]phenyl]azo]-1-hydroxy-3,6-bis(sodiosulfo)-2-naphthalenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxybenzoic acid sodium salt
- Benzoic acid, 5-[[4'-[[2,4-dihydroxy-3-[(4-sulfo-1-naphthalenyl)azo]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-2-hydroxy-, disodium salt
- Direct Brown 221
- Direct Brown 222
- C.I. Direct Brown 208