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| | Pigment Red 3 Basic information |
| Product Name: | Pigment Red 3 | | Synonyms: | ((4-Methyl-2-nitrophenyl)azo)-2-naphthol;1-((2-nitro-4-methylphenyl)azo)-2-naphthol;adctoluidineredb;atlasolspiritred3;Basoflex Red 361;C.I. Pigment Red 3;C.I.Pigmentred3;C.I.PigmentRed3(12120) | | CAS: | 2425-85-6 | | MF: | C17H13N3O3 | | MW: | 307.3 | | EINECS: | 219-372-2 | | Product Categories: | Organics | | Mol File: | 2425-85-6.mol |  |
| | Pigment Red 3 Chemical Properties |
| Melting point | 270-272 °C(lit.) | | Boiling point | 447.81°C (rough estimate) | | density | 1.1873 (rough estimate) | | refractive index | 1.6500 (estimate) | | solubility | Chloroform (Slightly, Heated), DMSO (Slightly), Toluene (Very Slightly) | | pka | 13.45±0.50(Predicted) | | form | neat | | Colour Index | 12120 | | Water Solubility | 211μg/L at 20℃ | | Stability: | Stable. May be moisture sensitive. Incompatible with strong oxidizing agents. | | LogP | 5.4 at 25℃ | | CAS DataBase Reference | 2425-85-6(CAS DataBase Reference) | | IARC | 3 (Vol. 57) 1993 | | NIST Chemistry Reference | 2-Naphthalenol, 1-[(4-methyl-2-nitrophenyl)azo]-(2425-85-6) | | EPA Substance Registry System | C.I. Pigment Red 3 (2425-85-6) |
| | Pigment Red 3 Usage And Synthesis |
| Chemical Properties | red to orange powder | | Uses | Toluidine Red is a oil soluble dye. Toluidine Red has been shown to cause hematopoietic cell proliferation in the spleen, liver, and bone marrow of rats. Dyes and metabolites, Environmental Testing | | Definition | ChEBI: CI Pigment Red 3 is a member of azobenzenes. | | General Description | Yellowish-red to red powder or solid. | | Air & Water Reactions | Sensitive to moisture Dust suspensions in air can be explosive at certain concentrations. Insoluble in water. | | Reactivity Profile | Pigment Red 3 may form toxic gases with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. May form flammable gases with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides. | | Fire Hazard | Flash point data for Pigment Red 3 are not available; however, Pigment Red 3 is probably combustible. | | Flammability and Explosibility | Nonflammable | | Properties and Applications |
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TEST ITEMS
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SPECIFICATION
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APPEARANCE
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DARK RED POWDER
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SHADE
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BLUISH
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HEAT RESISTANCE
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140 °C min
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LIGHT FASTNESS
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7
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ACID RESISTANCE
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5
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ALKALI RESISTANCE
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5
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FASTNESS TO BLEEDING
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4
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OIL ABSORPTION
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40-45%
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SPECIFIC SURFACE
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28 m
2
/g
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DENSITY
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1.60 g/cm
3
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RESIDUE ON 80 MESH
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5.0% max
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WATER SOLUBLE
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1.0% max
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VOLATITE 105 °C
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1.0% max
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TINTING STRENGTH
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100-105 %
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| | Pigment Red 3 Preparation Products And Raw materials |
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