Product Details
Chloromaleic-anhydride.html">material/benzene.html">benzene is a monocyclic aromatic compound in which one hydrogen atom on the benzene ring is replaced by a chlorine atom. It is synthesized via liquid-phase chlorination of benzene using a catalyst. At room temperature, chlorobenzene is a colorless, flammable liquid with a sweet almond‑like odor. It has a relatively high vapor pressure, a moderate octanol-water partition coefficient (log P = 2.8), and moderate to low water solubility (497.9 mg/L at 25 °C). Chlorobenzene dissolves well in nonpolar solvents but is nearly insoluble in water. Technical‑grade chlorobenzene is typically 99% pure, with impurities including less than 0.05% benzene and less than 0.1% dichlorobenzenes. It serves as a common solvent and a widely used intermediate in the production of other chemicals. The bacterium Rhodococcus phenolicus can utilize chlorobenzene as its only carbon source for degradation.
Parameters
| Property | Value |
| Melting point | -45 °C (lit.) |
| Boiling point | 132 °C (lit.) |
| density | 1.106 g/mL at 25 °C (lit.) |
| vapor density | 3.86 (vs air) |
| vapor pressure | 11.8 mm Hg (25 °C) |
| refractive index | n20/D 1.524(lit.) |
| Fp | 75 °F |
| storage temp. | 2-8°C |
| solubility | water: soluble 0.207 g/L at 20°C |
| form | Liquid |
| color | APHA: ≤30 |
| Odor | Almond like odour |
| PH | 7 (20°C) |
| Relative polarity | 0.188 |
| explosive limit | 1.3-11%(V) |
| Water Solubility | 0.4 g/L (20 ºC) |
| FreezingPoint | -45.6℃ |
| λmax | λ: 288 nm Amax: 1.0 λ: 290 nm Amax: 0.40 λ: 300 nm Amax: 0.05 λ: 325 nm Amax: 0.04 λ: 360-400 nm Amax: 0.01 |
| Merck | 14,2121 |
| BRN | 605632 |
| Henry's Law Constant | 1.11, 1.54, 1.81, 2.80, and 3.79 at 2.0, 6.0, 10.0, 18.0, and 25.0 °C, respectively (EPICS-SPME, Dewulf et al., 1999)(x 10-3 atm·m3/mol) |
| Dielectric constant | 5.6（25℃） |
| Exposure limits | TLV-TWA 75 ppm (～345 mg/m3) (ACGIH, MSHA, OSHA, and NIOSH); IDLH 2400 ppm. |
| Stability: | Stable. Incompatible with oxidizing agents. Flammable. Attacks some types of plastics, rubber and coatings. |
| LogP | 3 at 20℃ |
| Surface tension | 32.42mN/m at 298.15K |
| CAS DataBase Reference | 108-90-7(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzene, chloro-(108-90-7) |
| EPA Substance Registry System | Chlorobenzene (108-90-7) |
Safety Information
| Item | Details |
| Hazard Codes | Xn,N,T,F |
| Risk Statements | 10-20-51/53-40-39/23/24/25-23/24/25-11 |
| Safety Statements | 24/25-61-36/37-45-16-7 |
| RIDADR | UN 1134 3/PG 3 |
| WGK Germany | 2 |
| RTECS | CZ0175000 |
| F | 3-10 |
| Autoignition Temperature | 590 °C |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29039190 |
| Hazardous Substances Data | 108-90-7(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 2000 - 4000 mg/kg |
| IDLA | 1,000 ppm |
Product Application of Chlorobenzene CAS#108-90-7
As a halogenated benzene derivative, chlorobenzene is used as a solvent in paints, a heat transfer medium, and in the industrial production of phenol, aniline, and nitrochlorobenzenes. Currently, its main applications include serving as a solvent for pesticide formulations, supporting diisocyanate manufacturing, degreasing automotive components, and enabling the synthesis of nitrochlorobenzene as well as QSAR studies related to agricultural chemical toxicity and pollution.
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