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| | DIRECT SCARLET B Basic information |
| Product Name: | DIRECT SCARLET B | | Synonyms: | directscarlet;DIAMINE SCARLET B;CHLORAMINE RED B;DIRECT SCARLET B;AMIDINE SCARLET B;disodium 8-[[4'-[(4-ethoxyphenyl)azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxynaphthalene-1,3-disulphonate;Diamine Scarlet BA-CF;Direct Fast Scarlet B | | CAS: | 3530-19-6 | | MF: | C30H25N4NaO8S2 | | MW: | 656.66 | | EINECS: | 222-560-7 | | Product Categories: | | | Mol File: | 3530-19-6.mol |  |
| | DIRECT SCARLET B Chemical Properties |
| storage temp. | Amber Vial, Refrigerator, Under inert atmosphere | | solubility | DMSO (Slightly), Methanol (Slightly), Water (Slightly) | | form | Solid | | Colour Index | 22240 | | color | Very Dark Red | | CAS DataBase Reference | 3530-19-6 | | EPA Substance Registry System | C.I. Direct Red 37, disodium salt (3530-19-6) |
| | DIRECT SCARLET B Usage And Synthesis |
| Uses | Direct Scarlet B is a dye used with textiles. It is a water pollutant, removed via chitin adsorption. | | Preparation | 4-(4-Aminophenyl)benzenamine double nitriding, first and 7-Hydroxynaphthalene-1,3-disulfonic acid coupling, again with phenol coupling, and then in contain sodium carbonate in aqueous solution of ethanol heating, air pressure,Using Chloroethane to make phenol??hydroxy ethylated?. | | Properties and Applications | red. Soluble in water for red, slightly soluble in alcohol, acetone and soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid for dark purple, after diluted brown precipitation; In nitric acid solution for colourful red. The dye solution to join strong hydrochloric acid have orange brown precipitation; Add thick sodium hydroxide solution for red orange, precipitation.
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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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3-4
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4
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2
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1-2
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1-2
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AATCC
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3
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5
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2-3
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1
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1
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| | DIRECT SCARLET B Preparation Products And Raw materials |
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