PR2-NAPHTHOL RED FRR
Pigment Red 2
CAS: 6041-94-7
Molecular Formula: C23H15Cl2N3O2
PR2-NAPHTHOL RED FRR - Names and Identifiers
| Name | Pigment Red 2 |
| Synonyms | 12310 c.i. 12310 CONFASTRED2R Pigment Red 2 IRGALITEREDFBX Fast Scarlet F2R PR2-NAPHTHOL RED FRR 4-[(2,5-dichlorophenyl)azo]-3-hydroxy-n-phenylnaphthalene-2-carboxamide 2-Naphthalenecarboxamide, 4-(2,5-dichlorophenyl)azo-3-hydroxy-N-phenyl- 4-[(E)-(2,5-dichlorophenyl)diazenyl]-3-hydroxy-N-phenylnaphthalene-2-carboxamide (4E)-4-[(2,5-dichlorophenyl)hydrazono]-3-oxo-N-phenyl-3,4-dihydronaphthalene-2-carboxamide |
| CAS | 6041-94-7 |
| EINECS | 227-930-1 |
| InChI | InChI=1/C23H15Cl2N3O2/c24-15-10-11-19(25)20(13-15)27-28-21-17-9-5-4-6-14(17)12-18(22(21)29)23(30)26-16-7-2-1-3-8-16/h1-13,29H,(H,26,30)/b28-27+ |
PR2-NAPHTHOL RED FRR - Physico-chemical Properties
| Molecular Formula | C23H15Cl2N3O2 |
| Molar Mass | 436.29 |
| Density | 1.38±0.1 g/cm3(Predicted) |
| Melting Point | 310-311°C |
| Boling Point | 595.2±50.0 °C(Predicted) |
| Flash Point | 313.7°C |
| Water Solubility | <0.1 g/100 mL at 19 ºC |
| Solubility | <0.1 g/100 mL at 19°C |
| Vapor Presure | 0Pa at 25℃ |
| pKa | 10.63±0.50(Predicted) |
| Storage Condition | Room Temprature |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Refractive Index | 1.673 |
| Physical and Chemical Properties | solubility: Red Violet in concentrated sulfuric acid, orange red after dilution; Blue red in case of concentrated nitric acid; No change in sodium hydroxide aqueous solution. hue or color: yellow Red relative density: 1.37-1.46 Bulk density/(lb/gal):11.4-12.2 melting point/℃:300-311 average particle size/μm:0.15 particle shape: flaky specific surface area/(m2/g):20;30 pH value/(10% slurry):7.3-7.9 oil absorption/(g/100g):36-70 hiding power: translucent diffraction curve:  reflection curve:  |
| Use | neutral red, compared with C.I. Pigment Red 112 slightly yellow light, but light fastness is lower than its 0.5-1 grade, larger particle size, slightly low transparency; Mainly used in offset and packaging ink, fabric printing and dyeing and viscose fiber pulp coloring, less used for paint coloring; Resist varnish, high temperature sterilization and solvent resistance performance than pigment red 112 low; Put on the market of goods brand up to 42 kinds. |
PR2-NAPHTHOL RED FRR - Reference Information
| LogP | 3.2 at 23℃ |
| EPA chemical substance information | information is provided by: ofmpeb.epa.gov (external link) |
Last Update：2024-04-10 22:29:15
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