Pigment Red 2

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 Structure
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 ℃
pka10.63±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.
LogP3.2 at 23℃
CAS DataBase Reference6041-94-7(CAS DataBase Reference)
EPA Substance Registry SystemC.I. Pigment Red 2 (6041-94-7)
Safety Information
Pigment Red 2 Usage And Synthesis
Chemical Propertiesyellowish red or dark red powder
General DescriptionYellowish red solid with a tint of pink or dark red powder.
Air & Water ReactionsAzo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water.
Reactivity ProfilePigment 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 HazardFlash point data for Pigment Red 2 are not available, however Pigment Red 2 is probably combustible.
Flammability and ExplosibilityNotclassified
Properties and Applications

TEST ITEMS

SPECIFICATION

APPEARANCE

RED POWDER

SHADE

BLUISH

HEAT RESISTANCE

140 °C min

LIGHT FASTNESS

5~6

ACID RESISTANCE

4

ALKALI RESISTANCE

4

FASTNESS TO BLEEDING

5

OIL ABSORPTION

40-45%

SPECIFIC SURFACE

25 m 2 /g

DENSITY

1.60 g/cm 3

RESIDUE ON 80 MESH

5.0% max

WATER SOLUBLE

1.0% max

VOLATITE 105 °C

1.0% max

TINTING STRENGTH

100-105 %

Pigment Red 2 Preparation Products And Raw materials
Pigment Red 53:1 Pigment Red 254 Pigment Red 122 N,N-Dimethylformamide CARBOXAMIDE Pigment Red 177 Pigment Red 122 4-PHENYLAZOPHENOL Red 2 Pigment Red 123 Vat Orange 3 CI NO 77605 Dichlorodiphenylsilane Pigment -- Pigment Red 5 CHLOROPHOSPHONAZO III Pigment Geen 7 Formamide Pigment Red 188

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