Direct Black 103
- Product Name
- Direct Black 103
- CAS No.
- 25180-17-0
- Chemical Name
- Direct Black 103
- Synonyms
- Direct Black 103;C.I.Direct Black 103:C.I.34179;1,5-Naphthalenedisulfonic acid, 3-[2-[4-[2-[4-[2-(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl]-6-sulfo-1-naphthalenyl]diazenyl]-1-naphthalenyl]diazenyl]-
- CBNumber
- CB3967731
- Molecular Formula
- C40H27N7O13S4
- Formula Weight
- 941.94
- MOL File
- 25180-17-0.mol
Direct Black 103 Property
- Density
- 1.75±0.1 g/cm3(Predicted)
- pka
- -0.79±0.40(Predicted)
Direct Black 103 Chemical Properties,Usage,Production
Preparation
3-Aminonaphthalene-1,5-disulfonic acid diazo, and Naphthalen-1-amine coupling, again diazo, and 8-Aminonaphthalene-2-sulfonic acid coupling, product to diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling.
Properties and Applications
blue grey. To black uniform powder. Soluble in water for violet solution, not soluble in alcohol. The strong sulfuric acid in the green light for gray blue, for purple diluted. The dye solution to join strong hydrochloric acid as dark blue precipitation; Add thick hydrogen oxidation sodium solution blue-purple precipitation. Cellulose fiber of dyeing, the dye absorption rates generally do, in 100 ℃ temperature when the biggest affinity, good levelness. Dyeing copper ions in without the should be, not sensitive to that fights. Mainly used for cotton, viscose, silk and wool/stick blended fabric dyeing and printing.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 4-5 | 4 | 5 | 3-4 | 3-4 |
Direct Black 103 Preparation Products And Raw materials
Raw materials
Preparation Products
Direct Black 103 Suppliers
- Tel
- --
- Fax
- --
- info@dynasty-color.com
- Country
- China
- ProdList
- 3306
- Advantage
- 51