| Identification | More | [Name]
4-PHENYLAZO-1-NAPHTHYLAMINE | [CAS]
131-22-6 | [Synonyms]
4-BENZENE-AZO-ALPHA-NAPTHYLAMINE
4-PHENYLAZO-1-NAPHTHYLAMINE
ALPHA-NAPHTHYL RED
A-NAPHTHYL RED
AURORA KA-7777
BENZENEAZO-1-NAPHTHYLAMINE
CI NO 11350
NAPHTHYL RED
SOLVENT YELLOW 4
1-Amino-4-phenylazonaphthalene
1-Naphthalenamine, 4-(phenylazo)-
1-Naphthylamine, 4-(phenylazo)-
4-(phenylazo)-1-naphthalenamin
4-[(E)-Phenyldiazenyl]-1-naphthalenamine
4-Benzeneazo-1-naphthylamine
4-Benzene-azo-alpha-naphthylamine
BNA
C.I. Solvent Yellow 4
c.i.solventyellow4
C.I.SolventYellow4(11350)-Naphthylred | [EINECS(EC#)]
205-018-4 | [Molecular Formula]
C16H13N3 | [MDL Number]
MFCD00004025 | [Molecular Weight]
247.29 | [MOL File]
131-22-6.mol |
| Chemical Properties | Back Directory | [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 | [form ]
crystals | [pka]
2.70(at 25℃) | [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) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [RTECS ]
QJ0360000
| [HS Code ]
2927.00.5000 | [Toxicity]
mma-sat 500 mg/plate AEMIDF 42,641,81 |
| Hazard Information | Back Directory | [Preparation]
aniline diazotization, and Naphthalen-1-amine coupling. | [Safety Profile]
Mutation data reported. When heated to decomposition it emits toxic vapors of NOx. | [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(℃)
|
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
|
75
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Insoluble
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No change
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Poor
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| [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.] |
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