1,2-Dichlorobenzene CAS:95-50-1

  • Product Name:1,2-Dichlorobenzene
  • CAS:95-50-1
  • Molecular formula:C6H4Cl2
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1,2-Dichlorobenzene CAS:95-50-1

1,2-Dichlorobenzene CAS:95-50-1 Basic information

Product Name: 1,2-Dichlorobenzene
Synonyms: 1,2-Dichlorobenzene(98%, HyDry, Water≤50 ppm (by K.F.));1,2-Dichlorobenzene(98%, HyDry, with molecular sieves, Water≤50 ppm (by K.F.));1,2-DICHLOROBENZENE, 99%1,2-DICHLOROBENZENE, 99%1,2-DICHLOROBENZENE, 99%1,2-DICHLOROBENZENE, 99%;JACS-95-50-1;1,2-dichlo
CAS: 95-50-1
MF: C6H4Cl2
MW: 147
EINECS: 202-425-9
Product Categories: DIA - DIC;Alpha Sort;DIA - DICPesticides&Metabolites;Herbicides;Others;Volatiles/ Semivolatiles;DIA - DICAnalytical Standards;Alphabetical Listings;D;DAlphabetic;NMR Reference Standards;NMRStable Isotopes;Spectroscopy;Stable Isotopes;Pestici
Mol File: 95-50-1.mol

1,2-Dichlorobenzene CAS:95-50-1 Chemical Properties

density: 1.306 g/mL at 25 °C(lit.)
Melting point: -15 °C
Boiling point: 179 °C
form: Liquid
storage temp.: 0-6°C
Water Solubility: 0.13 g/L (20 ºC)
refractive index: n20/D 1.551
BRN: 606078
Fp: 150 °F
solubility: 0.13g/l
NIST Chemistry Reference: Benzene, 1,2-dichloro-(95-50-1)
Merck: 14,3056
Stability: Stable, but possibly light sensitive. Combustible. Incompatible with oxidizing agents, aluminium, aluminium alloys. Attacks some rubbers and plastics.
vapor pressure: 1.2 mm Hg ( 20 °C)
vapor density: 5.1 (vs air)
Odor: Aromatic; characteristic aromatic.
λmax: λ: 296 nm Amax: 1.00λ: 300 nm Amax: 0.30λ: 305 nm Amax: 0.20λ: 335 nm Amax: 0.05λ: 375-400 nm Amax: 0.01
Exposure limits: Ceiling 50 ppm (~300 mg/m3) (MSHA, OSHA, and NIOSH); IDLH 1700 ppm (NIOSH).
explosive limit: 2.2-12%(V)
Henry s Law Constant: 1.92 at 25 °C (gas stripping-GC, Shiu and Mackay, 1997)
CAS DataBase Reference: 95-50-1(CAS DataBase Reference)
EPA Substance Registry System: o-Dichlorobenzene (95-50-1)

Product Name

1,2-Dichlorobenzene

CAS

95-50-1

Weight

5000kg

Batch No

20200105

Items tested

Specifications

Results

Appearance

Colorless transparent liquid

Colorless transparent liquid

Assay %

99

99.6

Density g/ml (20℃)

1.300-1.330

1.315

Water %

0.03

0.013

AcidH2SO4 %

0.001

0.001







Conclusion

Conform to HG/T3602-2010


1,2-Dichlorobenzene Usage And Synthesis
Chemical Propertiescolourless liquid
Chemical PropertiesThere are three isomeric forms of dichlorobenzene (DCB): m-DCB is a flammable liquid and vapor.
Chemical Properties1,2-Dichlorobenzene (DCB, o-Dichlorobenzene, ODB, Orthodichlorobenzene), C6H4Cl2, is a colorless to pale yellow liquid with a pleasant aromatic odor. It is a combustible liquid and can form explosive mixtures with air at or above 151°F. Combustion and thermal decomposition products include hydrogen chloride gas, phosgene and chloro-carbons. Its flammable (explosive) limits are as follows: Lower 2.2%, Upper 9.2%.
Physical propertiesClear, colorless to pale yellow liquid with a pleasant, aromatic, grassy or vegetable-type odor. At 40 °C, the lowest concentration at which an odor was detected was 200 μg/L. At 25 °C, the lowest concentration at which a taste was detected was 200 μg/L (Young et al., 1996). A detection odor threshold concentration of 4.2 mg/m3 (699 ppbv) was reported by Punter (1983).
Uses1,2-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.
UsesSolvent for waxes, gums, resins, tars, rubbers, oils, asphalts; insecticide for termites and locust borers; fumigant; deodorizer; removing sulfur from illuminating gas; as degreasing agent for metals, leather, wool; as ingredient of metal polishes; as heat transfer medium; as intermediate in the manufacture of dyes.
DefinitionChEBI: A dichlorobenzene carrying chloro substituents at positions 1 and 2.
Production MethodsDichlorobenzenes are primarily produced by the chlorination of benzene in the presence of a catalyst (FeCl3 or AlCl3) although there are other possible synthetic routes. The two commercially important isomers are the ortho- and para-dichlorobenzenes.
General DescriptionA clear colorless liquid with a pleasant odor. Denser than water and insoluble in water. Flash point 150°F. Toxic by inhalation and ingestion. Used to make other chemicals, solvents, fumigants and insecticides and for many other uses.
Air & Water ReactionsInsoluble in water.
Reactivity Profile1,2-Dichlorobenzene is sensitive to prolonged exposure to light. 1,2-Dichlorobenzene can react vigorously with oxidizers. 1,2-Dichlorobenzene is incompatible with aluminum and aluminum alloys. 1,2-Dichlorobenzene attacks some forms of plastics, rubber and coatings. .
Health HazardChronic inhalation of mist or vapors may result in damage to lungs, liver, and kidneys. Acute vapor exposure can cause symptoms ranging from coughing to central nervous system depression and transient anesthesia. Irritating to skin, eyes, and mucous membranes. May cause dermatitis.
Health Hazard1,2-Dichlorobenzene exhibits low acute toxi city by inhalation, ingestion, and skin absorp tion. It is more toxic than chlorobenzene.The symptoms are lacrimation, depression ofcentral nervous system, anesthesia, and liverdamage. Lethal concentration in rats for a7-hour exposure period is in the range of800 ppm. The oral LD50 value in rabbits is500 mg/kg. There is no evidence of carcino genicity in animals.
Fire HazardSpecial Hazards of Combustion Products: Poisonous vapors including hydrogen chloride gas, chlorocarbons, chlorine
Chemical ReactivityReactivity with Water No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
Safety ProfilePoison by ingestion and intravenous routes. Moderately toxic by inhalation and intraperitoneal routes. An experimental teratogen. Other experimental reproductive effects. An eye, skin, and mucous membrane irritant. Causes liver and hdney injury. Questionable carcinogen. Mutation data reported. A pesticide. Flammable when exposed to heat or flame. Can react vigorously with oxidizing materials. To fight fire, use water, foam, CO2, or dry chemical. Slow reaction with aluminum may lead to explosion during storage in a sealed aluminum container. When heated to decomposition it emits toxic fumes of Cl-. See also CHLOROBENZENE and CHLORINATED HYDROCARBONS, AROMATIC.
Potential ExposureThe major uses of o-DCB are as a process solvent in the manufacturing of toluene diisocyanate and as an intermediate in the synthesis of dyestuffs, herbicides, and degreasers. p-Dichlorbenzene is used primarily as a moth repellant, a mildew control agent; space deodorant; and in insecticides, which accounts for 90% of the total production of this isomer. Information is not available concerning the production and use of m-DCB. However, it may occur as a contaminant of o-or p-DCB formulations. Both o-and p-isomers are produced almost entirely as by-products during the production of monochlorobenzene


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