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| | Pigment Red 2 Basic information |
| Product Name: | Pigment Red 2 | | Synonyms: | 4-[(2,5-dichlorophenyl)azo]-3-hydroxy-n-phenylnaphthalene-2-carboxamide;c.i. 12310;Pigment Red 2;PR2-NAPHTHOL RED FRR;Fast Scarlet F2R;2-Naphthalenecarboxamide, 4-(2,5-dichlorophenyl)azo-3-hydroxy-N-phenyl-;CONFASTRED2R;IRGALITEREDFBX | | CAS: | 6041-94-7 | | MF: | C23H15Cl2N3O2 | | MW: | 436.29 | | EINECS: | 227-930-1 | | Product Categories: | Organics;Dyes and Pigments | | Mol File: | 6041-94-7.mol |  |
| | Pigment Red 2 Chemical Properties |
| Melting point | 310-311°C | | Boiling point | 595.2±50.0 °C(Predicted) | | density | 1.38±0.1 g/cm3(Predicted) | | vapor pressure | 0Pa at 25℃ | | solubility | 8.63mg/L in organic solvents at 20 ℃ | | pka | 10.63±0.50(Predicted) | | form | Solid | | color | Red to Dark Red | | Water Solubility | <0.1 g/100 mL at 19 ºC | | Stability: | Stable. Incompatible with strong oxidizing agents. | | LogP | 3.2 at 23℃ | | CAS DataBase Reference | 6041-94-7(CAS DataBase Reference) | | EPA Substance Registry System | C.I. Pigment Red 2 (6041-94-7) |
| | Pigment Red 2 Usage And Synthesis |
| Chemical Properties | yellowish red or dark red powder | | General Description | Yellowish red solid with a tint of pink or dark red powder. | | Air & Water Reactions | Azo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water. | | Reactivity Profile | Pigment Red 2 is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class 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. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides. | | Fire Hazard | Flash point data for Pigment Red 2 are not available, however Pigment Red 2 is probably combustible. | | Flammability and Explosibility | Notclassified | | Properties and Applications |
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TEST ITEMS
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SPECIFICATION
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APPEARANCE
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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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5~6
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ACID RESISTANCE
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4
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ALKALI RESISTANCE
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4
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FASTNESS TO BLEEDING
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5
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OIL ABSORPTION
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40-45%
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SPECIFIC SURFACE
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25 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 2 Preparation Products And Raw materials |
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