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| | 4-PHENYLAZO-1-NAPHTHYLAMINE Basic information |
| Product Name: | 4-PHENYLAZO-1-NAPHTHYLAMINE | | Synonyms: | CI NO 11350;BENZENEAZO-1-NAPHTHYLAMINE;AURORA KA-7777;4-(phenyldiazenyl)naphthalen-1-amine;ALPHA-NAPHTHYL RED HYDROCHLORIDE INDICATOR;C.I. Solvent Yellow 4 (8CI);4-PHENYLAZO-NAPHTHYLAMINE;ALPHA-Naphthyl red (C.I. 11350) | | CAS: | 131-22-6 | | MF: | C16H13N3 | | MW: | 247.29 | | EINECS: | 205-018-4 | | Product Categories: | Azo | | Mol File: | 131-22-6.mol |  |
| | 4-PHENYLAZO-1-NAPHTHYLAMINE Chemical Properties |
| Melting point | 124°C | | Boiling point | 380.33°C (rough estimate) | | density | 1.1633 (rough estimate) | | refractive index | 1.6470 (estimate) | | solubility | Solubility Virtually insoluble in water; slightly soluble in ethanol; soluble in acetone, benzene,ethyl acetate, toluene, xylene | | Colour Index | 11350 | | pka | 2.70(at 25℃) | | form | crystals | | color | Dark red | | PH Range | Red (3.7) to yellow (5.0) | | λmax | 439nm | | Major Application | Display device, semiconductor, sensors, photosensitive materials, recording materials, fooding materials, imaging materials, inks, engraving coatings, lubricants, hair dyes, food storage, dental materials | | CAS DataBase Reference | 131-22-6(CAS DataBase Reference) | | EPA Substance Registry System | 1-Naphthalenamine, 4-(phenylazo)- (131-22-6) |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 26-36 | | WGK Germany | 3 | | RTECS | QJ0360000 | | HS Code | 2927.00.5000 | | Toxicity | mma-sat 500 mg/plate AEMIDF 42,641,81 |
| | 4-PHENYLAZO-1-NAPHTHYLAMINE Usage And Synthesis |
| Preparation | aniline diazotization, and Naphthalen-1-amine coupling. | | Safety Profile | Mutation data reported. When heated to decomposition it emits toxic vapors of NOx. | | Purification Methods | Crystallise the dye from cyclohexane or aqueous EtOH. [Brode et al. J Am Chem Soc 74 4641 1952, Beilstein 16 H 361, 16 III 406, 16 IV 546.] | | Properties and Applications | brilliant red light yellow to brilliant yellow orange (mineral oil). Red acicular crystal, melting point 123 ℃. Soluble in alcohol and benzene. In concentrated sulfuric acid for magenta; After dilution for red light brown, precipitation, At 2% hot hydrochloric acid solution for magenta solution, there are residues. Dye alcohol solution to join concentrated sodium hydroxide solution for yellow brown. Used for oil, paraffin wax, paint color.
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Standard
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Light Fastness
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Heat-resistant(℃)
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Water
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Sodium Carbonate(5%)
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Hydrochloric acid(5%)
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Melting point
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Stable
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ISO
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Well
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109
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75
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Insoluble
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No change
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Poor
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| | 4-PHENYLAZO-1-NAPHTHYLAMINE Preparation Products And Raw materials |
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