532-82-1

Basic information

• Product Name: Basic Orange 2
• Synonyms: 4-PHENYLAZO-M-PHENYLENE DIAMINE HYDROCHLORIDE;4-PHENYLAZO-1,3-PHENYLENEDIAMINE MONOHYDROCHLORIDE;1,3-BENZENEDIAMINE, 4-(PHENYLAZO), MONOHYDROCHLORIDE;2,4-DIAMINOAZOBENZENE HYDROCHLORIDE;BASIC ORANGE 2;BASIC ORANGE;CALCOZINE CHRYSOIDINE Y;LABOTEST-BB LT00847215
• CAS NO: 532-82-1
• Molecular Formula: C₁₂H₁₂N₄*ClH
• Molecular Weight: 248.71
• EINECS: 208-545-8
• Product Categories: Dyes and Pigments;Organics;Solvent Dyestuff;Azo
• Mol File: 532-82-1.mol
• Article Data: 0

Chemical Properties

• Melting Point: 235 °C (dec.)(lit.)
• Boiling Point: 2262°C
• Flash Point: 228.4 °C
• Appearance: Bordeaux to deep purple/Crystalline Powder
• Density: 1.2171 (rough estimate)
• Vapor Pressure: 1.2E-08mmHg at 25°C
• Refractive Index: 1.6110 (estimate)
• Storage Temp.: 2-8°C
• Solubility: Solubility Soluble in water, ethanol, acetone, methyl cellosolv
• Merck: 13,2279
• BRN: 3724653
• CAS DataBase Reference: Basic Orange 2(CAS DataBase Reference)
• NIST Chemistry Reference: Basic Orange 2(532-82-1)
• EPA Substance Registry System: Basic Orange 2(532-82-1)

Safety Data

• Hazard Codes: N,Xn
• Statements: 50/53-68-41-38-22
• Safety Statements: 60-61-46-36/37/39-26-23
• RIDADR: UN 3077 9/PG 3
• WGK Germany: 2
• RTECS: ST3380000
• Hazardous Substances Data: 532-82-1(Hazardous Substances Data)

Usage

Chemical Properties

BORDEAUX TO DEEP PURPLE CRYSTALLINE POWDER

Uses

Orange dye for cotton and silk.

Definition

A dye made from aniline.

General Description

Red-brown powder, large black shiny crystals with a green luster or purple powder.

Air & Water Reactions

Azo dyes can be explosive when suspended in air at specific concentrations.Slightly soluble in water.

Reactivity Profile

Basic Orange 2 is an azo compound. Toxic gases are formed by mixing compounds containing azo groups 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. Basic Orange 2 is incompatible with strong oxidizing agents.

Hazard

Questionable carcinogen.

Fire Hazard

Flash point data for Basic Orange 2 are not available. Basic Orange 2 is probably combustible.

Safety Profile

Moderately toxic by ingestion and subcutaneous routes. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. When heated to decomposition it emits very toxic fumes of NO, and HCl. Used as a colorant in textiles, paper, leather, inks, wood, and biological stains

Properties and Applications

TEST ITEMS SPECIFICATION APPEARANCE ORANGE LIGHTING 1-2 SOAPING 3-4 PERSPIRATING 3-4 FRICTION(DRY) 4 FRICTION(WET) 3 RESIDUE ON 80 MESH 5.0% max WATER SOLUBILE 1.0% max VOLATITE 105°C 1.0% max TINTING STRENGTH 100-105 % WEIGHT METAL TOTAL 50ppm max

TEST ITEMS

SPECIFICATION

LIGHTING

1-2

RESIDUE ON 80 MESH

5.0% max

TINTING STRENGTH

100-105 %

WEIGHT METAL TOTAL

50ppm max

Purification Methods

It is a red-brown powder which is recrystallised from H2O. It gives a yellow solution in conc H2SO4 which turns orange on dilution. Its solubility at 15o is 5.5% (H2O), 4.75% (EtOH), 6.0% (cellosolve), 9.5% (ethylene glycol), 0.005% (xylene) and is insoluble in *C6H6. The hydroiodide has m 184o (from EtOH) and the picrate forms red needles m 196o. [Muramatsu Bull Chem Soc Jpn 31 864 1958, Beilstein 6 IV 561.]

InChI:InChI=1/C12H12N4.ClH/c13-9-6-7-12(11(14)8-9)16-15-10-4-2-1-3-5-10;/h1-8H,13-14H2;1H/b16-15-;

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