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HomeProduct name listPigment Red 3

Pigment Red 3

Synonym(s):Pigment Red 3

  • CAS NO.:2425-85-6
  • Empirical Formula: C17H13N3O3
  • Molecular Weight: 307.3
  • MDL number: MFCD00003910
  • EINECS: 219-372-2
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-05-15 10:43:27
Pigment Red 3 Structural

What is Pigment Red 3?

Description

C.I. Pigment Red 3, 12120 [2425-85-6] is a good representative of monoazopigments of the β-naphthol type and is one of the most important organic pigments.

Chemical properties

red to orange powder

The Uses of Pigment Red 3

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

What are the applications of Application

Pigment red 3 is a cell proliferation activator

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

Non flammable

Properties and Applications

TEST ITEMS

SPECIFICATION

APPEARANCE

DARK RED POWDER

SHADE

BLUISH

HEAT RESISTANCE

140 °C min

LIGHT FASTNESS

7

ACID RESISTANCE

5

ALKALI RESISTANCE

5

FASTNESS TO BLEEDING

4

OIL ABSORPTION

40-45%

SPECIFIC SURFACE

28 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 %

Properties of Pigment Red 3

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)
Colour Index  12120
pka 13.45±0.50(Predicted)
form  neat
Water Solubility  211μg/L at 20℃
Stability: Stable. May be moisture sensitive. Incompatible with strong oxidizing agents.
CAS DataBase Reference 2425-85-6(CAS DataBase Reference)
NIST Chemistry Reference 2-Naphthalenol, 1-[(4-methyl-2-nitrophenyl)azo]-(2425-85-6)
IARC 3 (Vol. 57) 1993
EPA Substance Registry System C.I. Pigment Red 3 (2425-85-6)

Safety information for Pigment Red 3

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
ghs
Environment
GHS09
GHS Hazard Statements H318:Serious eye damage/eye irritation
H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P273:Avoid release to the environment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P501:Dispose of contents/container to..…

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