1,4-Дихлорбензол: қасиеттері мен қауіптері

chembox
|Verifiedfields = changed
|Watchedfields = changed
|verifiedrevid = 477206149
|Name = 1,4 Dichlorobenzene
|ImageFileL1 = 1,4 dichlorobenzene. svg
|ImageSizeL1 = 70px
|ImageNameL1 = 1,4 Dichlorobenzene
|ImageFileR1 = P Dichlorobenzene 3D balls. png
|ImageNameR1 = Ball and stick model of 1,4 dichlorobenzene
| ImageFile2=1,4 dichlorobenzene crystallised. jpg
|ImageCaption2 = 1,4 dichlorobenzene crystallised on paper from DCM solution
|PIN = 1,4 Dichlorobenzene
|OtherNames = 1,4 DCBpara Dichlorobenzenep Dichlorobenzenep DCBPDCBParamothPara crystalsParacideDichlorocide
|Section1 =
|Section2 = Chembox Properties
|C=6 | H=4 | Cl=2
|Density = 1.25 g/cm3, solid
|Solubility = 10.5 mg/100 mL (20 °C)
|MeltingPtC = 53.5
|BoilingPtC = 174
|Appearance = Colorless/white crystals
|ExploLimits = 2.5% ? |LDLo = 857 mg/kg (human, oral)4000 mg/kg (rat, oral)2800 mg/kg (guinea pig, oral)

p DCB is poorly soluble in water and is not easily broken down by soil organisms. Like many hydrocarbons, p DCB is lipophilic and will accumulate in fatty tissues if consumed by a person or animal. The United States Department of Health and Human Services (DHHS) and the International Agency for Research on Cancer (IARC) have determined that p DCB may reasonably be anticipated to be a carcinogen. This has been indicated by animal studies, although a full scale human study has not been done. The United States Environmental Protection Agency (EPA) has set a target maximum contaminant level of 75 micrograms of p DCB per liter of drinking water (75 μg/L), but publishes no information on the cancer risk. p DCB is also an EPA registered pesticide. The United States Occupational Safety and Health Administration (OSHA) has set a maximum level of 75 parts of p DCB per million parts air in the workplace (75 ppm) for an 8 hour day, 40 hour workweek. A mechanism for the carcinogenic effects of mothballs and some types of air fresheners containing p DCB has been identified in roundworms. Due to its carcinogenic nature, use of paradichlorobenzene in the European Union is forbidden as an air freshener (since 2005) and in mothballs (since 2008).

Rhodococcus phenolicus is a bacterium species able to degrade dichlorobenzene as its sole carbon source.