Unit D, 16/F, Cheuk Nang 21st Century Plaza 250 Hennessy Road, Wanchai Hong Kong
Tel: +852 25755186
Fax:+852 28911996
Email: sales@richfeng.com
The current position： HOME > PRODUCTS >> Dyestuffs Pigments and Intermediates
H-Acid
 |
H-acid is produced pursuant to Standard QB/T HQ2005-01 which applies to H-acid derived from T-acid trisodium salt through alkali fusion-acid eduction.It is H-Acidmainly used in dyestuff,pharmaceutical and chemical industries.
MF: C10H9O7NS2
MW: 319
Standard: QB/T HQ2005-01
| Index name | Index
|
| Appearance | gray to light gray powder
|
| Content,%≥ | 80.00
|
| Purity,%≥ | 97.50
|
| Alkali insoluble matter ,%≤ | 0.10
|
| Chromotropic acid,%≤ | 1.50
|
| T-acid,%≤ | 0.40
|
| W-acid,%≤ | 1.00
|
| Moisture,%≤ | 5.00
|
ain Properties:
From gray white to light gray powder.It is faintly soluble in hot water.It's not soluble in either alcohol or ether.It is effectively soluable in alkali solutions.
Main Applications:
It is mainly used in dyestuff industry,comprising the production of acid dye,direct dye and reactive dye,In addition,it can also be used in pharmaceutical and chemical industries.
Package: Braided bag with two-layer inner plastic film;25Kg Per bag.
Storage: Store in shade and dry.