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| | Direct Blue 78 Basic information |
| Product Name: | Direct Blue 78 | | Synonyms: | Ismafast blue 4GL;Fast Sky Blue G;Atul Direct Light Fast Blue 4G;Direct Blue 4GLL;Direct Fast Blue L4G;Fabramine Blue 4GL;Helion Blue G;Intralite Blue 4GL | | CAS: | 2503-73-3 | | MF: | C42H25N7Na4O13S4 | | MW: | 1055.90608 | | EINECS: | 219-708-8 | | Product Categories: | Organics | | Mol File: | 2503-73-3.mol |  |
| | Direct Blue 78 Chemical Properties |
| | Direct Blue 78 Usage And Synthesis |
| 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.
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Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Soaping
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Water
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Fading
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Stain
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Fading
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Stain
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ISO
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4
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4-5
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4-5
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2-3
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2-3
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AATCC
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5
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4-5
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5
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3
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3
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| | Direct Blue 78 Preparation Products And Raw materials |
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