Direct Black 19
time:2015-08-09 18:29:16,count:0

Direct Black 19
Alias
C.I. Direct Black 19
C.I. 35255
2,7-Naphthalenedisulfonic acid, 4-amino-3,6-bis((4-((2,4-diaminophenyl)azo)phenyl)azo)-5-hydroxy-, disodium salt
Category
Zwitterionic surfactants-Amino sulfonic acid
CAS No.
6428-31-5
Molecular Formula & Molecular Weight
Molecular Formula: C34H27N13Na2S2O7
Molecular Weight: 839.77
Structural Formula
Properties
Appearance: solid.
Solubility: slightly soluble in water.
Stability: stable.
Risk: irritation, irritation to skin, eye.
Ecology: may be hazardous to environment. Water body should be given special attention.
Biodegradability: biodegradable.
Characteristics: excellent masking, dispersing abilities.
Synthesis
 
Quality standards & test methods
item
physical and chemical indexes
test methods
actives*, %, ≥
95
 
*: should be marked on molecular weight.
Major Uses
Use as dye.
Manufacturers
 

Home | Surfactants | Documents | Standards | Enterprise | Essays | Links | Navigation | Copyright | Advertising | About us | Bulletin

简体中文 | 繁體中文 | English

MP: 0086 180 0222 7832;   Email: ssunliu@gmail.com

Copyright 2004-2016 SAAPedia All Rights Reserved.