Direct Blue 78
- CAS No.
- 2503-73-3
- Chemical Name:
- Direct Blue 78
- Synonyms
- C.I.34200;Helion Blue G;tetrasodium sa;Kayarus Blue G;Durazol Blue G;Dicorel Blue LV;Direct Blue 4GL;Direct Blue 4GLL;Ismafast blue 4GL;Triamin Blue 4GL.
- CBNumber:
- CB2875158
- Molecular Formula:
- C42H25N7Na4O13S4
- Molecular Weight:
- 1055.90608
- MDL Number:
- MFCD00230743
- MOL File:
- 2503-73-3.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| PONTAMINE FAST BLUE 4GL 95.00% | DYE0001054 | 5MG | $501.68 |
| More product size | |||
| Density | 1.383[at 20℃] |
|---|---|
| vapor pressure | 0Pa at 25℃ |
| Water Solubility | 10g/L at 20℃ |
| LogP | -1 |
| FDA UNII | V4U8LFJ9SL |
| EPA Substance Registry System | C.I. Direct Blue 78, tetrasodium salt (2503-73-3) |
Direct Blue 78 Chemical Properties,Uses,Production
Chemical Properties
Yellowish gray powder. Aqueous solution is blue, adding concentrated hydrochloric acid is reddish blue, adding concentrated sodium hydroxide solution is reddish purple. Soluble in ethylene glycol ether, slightly soluble in ethanol, insoluble in other organic solvents. In concentrated sulfuric acid it is purple sauce to black, after dilution it is sauce red; in concentrated nitric acid it is brownish gray. After dyeing, it is basically unchanged when encountering copper and iron ions.
Uses
Direct Blue 78 is a good dyeing agent for cotton fabrics.
Preparation
2-Aminobenzene-1,4-disulfonic acid diazo, and 8-Aminonaphthalene-2-sulfonic acid first coupling, its product to diazo, and Naphthalen-1-amine second coupling, again diazo, in alkaline conditions and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid third coupling.
Flammability and Explosibility
Not classified
Properties and Applications
blue. Soluble in water for blue, solubility of 15 g/L (60 ℃), 30 g/L (97 ℃), soluble in soluble fiber element, slightly soluble in alcohol, insoluble in other organic solvents. The strong sulfuric acid in Red sauce for galleries to, diluted Red sauce for; In the light of nitric acid for palm gray. The dye solution to join strong hydrochloric acid for red light blue; Add thick sodium hydroxide solution for red light purple. Water-soluble good, colored light to blue. Dye in bath of copper, iron ion colored light basic unchanged. SDC classification for class B. Neutral white is very good, alkaline white. Mainly used for cotton or viscose dyeing and printing directly, and disperse dyestuffs with bath dyeing polyester/cotton blended fabric. Can also be used for paper, leather and biological dyeing.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 4 | 4-5 | 4-5 | 2-3 | 2-3 | ||
| AATCC | 5 | 4-5 | 5 | 3 | 3 | ||
References
[1] Sawada K, Ueda M. Adsorption behavior of direct dye on cotton in non-aqueous media[J]. Dyes and pigments, 2003, 58(1): 37-40.
Direct Blue 78 Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Winchem industrial co limited | +8613003762012 | info@win-chemical.com | China | 300 | 58 |
| Dideu Industries Group Limited | +86-29-89586680 +86-15129568250 | 1026@dideu.com | China | 28009 | 58 |
| GIHI CHEMICALS CO.,LIMITED | +86-571-86217390; +8618058761490 | info@gihichemicals.com | China | 49962 | 58 |
| Wuhan Fortuna Chemical Co.,Ltd | +86-2759207851; +8618007136271 | hk@fortunachem.com | China | 6006 | 58 |
| XIAMEN AMITY INDUSTRY AND TRADE CO., LTD. | +8618950047208 | ellena@amitychem.com | China | 43414 | 58 |
| Winchem Industrial Co. Ltd | 0574-83851061 | info@win-chemical.com | China | 500 | 55 |
| Alfa Chemistry | 1-516-6625404 | support@alfa-chemistry.com | United States | 9171 | 60 |
| Hubei Shishun Biotechnology Co. Ltd | 027-59223025 15107168801 | 1718480011@qq.com | China | 9403 | 58 |
| Hubei Guangao Biotechnology Co., Ltd | 027-02702759223056 18162699093 | 1208480011@qq.com | China | 9551 | 58 |
| Shaanxi DIDU pharmaceutical and Chemical Co., Ltd | 029-029-029-81148696 18161915376 | 1040@dideu.com | China | 9999 | 58 |
