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) |
| Specific Heat Capacity | Cp(liquid): 1.1 J/(g·K), at 25℃ |
| Thermal Conductivity | 0.125 W/(m·K) at 25 ℃ |
| 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) |
| Dielectric constant | 7.5（20℃） |
| Exposure limits | ACGIH:TLV-TWA 25 ppm (150 mg/m3); TLV-STEL 50 ppm (301 mg/m3) OSHA:PEL-Ceiling 50 ppm (300 mg/m3) NIOSH:REL-Ceiling 50 ppm |
| Stability: | Stable, but possibly light sensitive. Combustible. Incompatible with oxidizing agents, aluminium, aluminium alloys. Attacks some rubbers and plastics. |
| InChI | 1S/C6H4Cl2/c7-5-3-1-2-4-6(5)8/h1-4H |
| InChIKey | RFFLAFLAYFXFSW-UHFFFAOYSA-N |
| SMILES | Clc1ccccc1Cl |
| 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
An obsolete organochlorine pesticide once used on both crops and livestock. Due to its age and usage status very little environmental fate or ecotoxicity data is available. It is moderately toxic to mammals, a liver toxin and neurotoxin. It is also an irritant.
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) |    GHS06,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H331-H302-H315-H319-H370-H372-H317-H341-H335-H336-H410-H227 |
| Precautionary statements | P501-P273-P272-P270-P202-P260-P210-P201-P271-P264-P280-P302+P352-P370+P378-P391-P337+P313-P305+P351+P338-P308+P311-P362+P364-P333+P313-P301+P312+P330-P304+P340+P311-P403+P233-P403+P235-P405 |
| target organs | Respiratory system |
| 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 |
| RIDADR | UN 1591 |
| OEL | Ceiling: 50 ppm (300 mg/m3) |
| WGK Germany | 3 |
| RTECS | CZ4500000 |
| Autoignition Temperature | 640 °C |
| TSCA | TSCA listed |
| HazardClass | 6.1 |
| PackingGroup | III |
| HS Code | 29036100 |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| Hazard Classifications | Acute Tox. 4 Inhalation Acute Tox. 4 Oral Aquatic Acute 1 Aquatic Chronic 1 Eye Irrit. 2 Skin Irrit. 2 Skin Sens. 1B STOT SE 3 |
| 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 |
| REACH Registrations | Active |
| Limited Quantities | 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid) |
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L) |
