A3179812
1，2-Dichlorobenzene , StandardforGC,>99.9%(GC) , 95-50-1
Synonym(s):
o-DCB;o-dichlorobenzene;1,2-Dichlorobenzene;o-Chlorobenzene;o-Dichlorobenzene, 1
CAS NO.：95-50-1
Empirical Formula: C6H4Cl2
Molecular Weight: 147
MDL number: MFCD00000535
EINECS: 202-425-9
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | -15 °C |
| Boiling point: | 179 °C |
| Density | 1.306 g/mL at 25 °C(lit.) |
| vapor density | 5.1 (vs air) |
| vapor pressure | 1.2 mm Hg ( 20 °C) |
| refractive index | n |
| Flash point: | 150 °F |
| storage temp. | Store below +30°C. |
| solubility | 0.13g/l |
| form | Liquid |
| color | Clear colorless to very slightly yellow |
| Odor | Aromatic; characteristic aromatic. |
| explosive limit | 2.2-12%(V) |
| Water Solubility | 0.13 g/L (20 ºC) |
| λmax | λ: 296 nm Amax: 1.00 λ: 300 nm Amax: 0.30 λ: 305 nm Amax: 0.20 λ: 335 nm Amax: 0.05 λ: 375-400 nm Amax: 0.01 |
| Merck | 14,3056 |
| BRN | 606078 |
| Henry's Law Constant | 1.92 at 25 °C (gas stripping-GC, Shiu and Mackay, 1997) |
| Exposure limits | Ceiling 50 ppm (～300 mg/m3) (MSHA,
OSHA, and NIOSH); IDLH 1700 ppm
(NIOSH). |
| Dielectric constant | 7.5（20℃） |
| Stability: | Stable, but possibly light sensitive. Combustible. Incompatible with oxidizing agents, aluminium, aluminium alloys. Attacks some rubbers and plastics. |
| LogP | 3.433 at 25℃ |
| CAS DataBase Reference | 95-50-1(CAS DataBase Reference) |
| IARC | 3 (Vol. Sup 7, 73) 1999 |
| NIST Chemistry Reference | Benzene, 1,2-dichloro-(95-50-1) |
| EPA Substance Registry System | o-Dichlorobenzene (95-50-1) |
Description and Uses
1,2-Dichlorobenzene is used as a solvent; asa fumigant; as an insecticide for termites;as a degreasing agent for metals, wool, andleather; and as a heat transfer medium.
Safety
| Symbol(GHS) |    GHS02,GHS07,GHS09 |
| Signal word | Danger |
| Hazard statements | H225-H319-H336-H411 |
| Precautionary statements | P210-P233-P240-P241-P273-P305+P351+P338 |
| Hazard Codes | Xn,N,Xi,F,T |
| Risk Statements | 22-36/37/38-50/53-67-66-52/53-36-11-39/23/24/25-23/24/25-51/53 |
| Safety Statements | 9-16-26-60-61-23-45-36/37-7 |
| OEL | Ceiling: 50 ppm (300 mg/m3) |
| RIDADR | UN 1993 3/PG 2 |
| WGK Germany | 3 |
| RTECS | CZ4500000 |
| Autoignition Temperature | 640 °C |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | III |
| HS Code | 29036100 |
| Hazardous Substances Data | 95-50-1(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 500 mg/kg LD50 dermal Rabbit > 10000 mg/kg |
| IDLA | 200 ppm |
