Melting point:

170-173 °C(lit.)

Boiling point:

183.4 °C34 mm Hg(lit.)

Density 

1.625 g/mL at 25 °C(lit.)

vapor pressure 

2.25 x 10^-4 mmHg at 35 °C (Hine et al., 1963)

refractive index 

1.725 (589.3 nm)

Flash point:

150 °C

storage temp. 

Store below +30°C.

solubility 

alcohol: soluble1g in 300ml

form 

Crystals or Powder

color 

Ochre to orange

Water Solubility 

Soluble in water. (0.8 g/L) at 20°C.

Merck 

14,3273

BRN 

1105828

Henry's Law Constant

4.79(x 10^-7 atm?m³/mol) at 35 °C (approximate - calculated from water solubility and vapor pressure)

Exposure limits

NIOSH REL: TWA 1, IDLH 50; OSHA PEL: TWA 1 ACGIH TLV: TWA 0.15 ppm for all isomers (adopted).

Stability:

Stable, but may be shock-sensitive. May explode if heated. Incompatible with oxidizing agents, strong bases, nitric acid, many metals, tin oxides.

CAS DataBase Reference

100-25-4(CAS DataBase Reference)

EPA Substance Registry System

p-Dinitrobenzene (100-25-4)

Symbol(GHS) 

GHS06,GHS08,GHS09

Signal word 

Danger

Hazard statements 

H300+H310+H330-H373-H410

Precautionary statements 

P262-P264-P273-P280-P302+P352+P310-P304+P340+P310

Hazard Codes 

T+,N,T,F

Risk Statements 

26/27/28-33-34-50/53-52/53-39/23/24/25-23/24/25-11

Safety Statements 

28-36/37-45-60-61-16

RIDADR 

UN 3443 6.1/PG 2

OEB

C

OEL

TWA: 1 mg/m3 [skin]

WGK Germany 

3

RTECS 

CZ7525000

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

II

HS Code 

29042090

Hazardous Substances Data

100-25-4(Hazardous Substances Data)

Toxicity

IC50 (24-h) for river bacteria 1.27 mg/L (Yuan and Lang, 1997).