English name: m-Phenylenediamine
English alias: CI Developer 11; 1,3-Benzenediamine; 1,3-Diaminobenzene; 1,3-Phenylenediamine; Metaphenylene Diamine; m-Phenylene Diamine; Meta Phenylenediamine; benzene-1,3-diamine; 1,3-Diamino benzene ; Meta-Phenylenediamine; Meta Phenylene Diamine; M-diamino benzene
CAS number: 108-45-2
EINECS number: 203-584-7
Molecular formula: C6H8N2
Molecular weight: 108.1411
InChI: InChI=1/C6H8N2/c7-5-2-1-3-6(8)4-5/h1-4H,7-8H2
Density: 1.15g/cm3
Melting point: 63-65℃
Boiling point: 283.2°C at 760 mmHg
Flash point: 147.6°C
Water solubility: 350 g/L (25℃)
Vapor pressure: 0.00321mmHg at 25°C

Physical and chemical properties:
Appearance: Colorless acicular crystals, unstable in the air and easily turn to light red
Melting point: 63-65
Boiling point: 282-284
Flash point: 175
Specific gravity (25°C): 1.0696
Refractive index: 1.6339
Water solubility: soluble in water (350g/L at 25), soluble in ethanol, water, chloroform, acetone, dimethylformamide, slightly soluble in ether, carbon tetrachloride, hardly soluble in benzene, toluene, butanol

Product Usage:
Intermediate of azo dyes and azine dyes, mainly used in the manufacture of direct sun-fast black RN, basic orange, basic brown G, direct sun-fast black G and other dyes, and used as fur dyes. In Japan, azo dyes are consumed The m-phenylenediamine accounts for 90% of total consumption. It is also used as a curing agent for epoxy resin, a coagulant for cement, and used in hair dyes, mordants, and developer.

Risk terms: R23/24/25:;
R36:;
R40:;
R43:;
R50/53:;
Security term: S28A:;
S36/37:;
S45:;
S60:;
S61:;
Upstream raw materials: nitrobenzene, nitric acid, sulfuric acid
Downstream products: 1,3-difluorobenzene, N-acetyl-1,3-phenylenediamine, direct fast black G, direct fast black GF, alkaline orange, reactive bright yellow X-7G, leather black ATS, Direct leather black NS