Fact sheet: 2-chlorophenol

From: Public Services and Procurement Canada

Discover a list of a contaminant's important chemical properties, how it will react in the environment, main sources of contamination related, and a brief overview of health and safety issues.

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General information

CAS number

95-57-8

Molecular formula

C6H5ClO

Formula weight

128.6 g/mol

Family

Phenolic compounds

Properties (at room temperature where applicable)

Compound properties list
ParameterValueComment
Melting/boiling point 9 0C / 175 0CNormally liquid in soil
Relative density1.26Sinks in water
Vapour pressure2 mm HgModerately volatile
Vapour density4.4Much denser than air
Solubility in water25,000 mg/LVery soluble
Henry's law constant6 x 10-6atm·m3/molSlow volatilization when dissolved
log Koc (Depending on soil or sediment characteristics)2.1 - 3.5*Moderate adsorption to organic matter

Environmental behaviour

At 20 0C, 2-chlorophenol is a liquid denser than water and moderately volatile. Characterized as very soluble, once dissolved, it volatilizes slowly and adsorbs moderately to organic matter. In the event of a spill, this compound will evaporate but the majority of the material will enter into the soil or migrate into a water course. Once it encounters water (surface or subsurface), 2-chlorophenol will dissolve (primarily) or sink until it reaches an impermeable surface. The liquid 2-chlorophenol that accumulates in a saturated zone will dissolve rapidly before it slowly volatilizes. The adsorbed 2-chlorophenol will disappear relatively quickly, liberating contamination primarily in the dissolved phase, as well as in a gaseous state. The resulting dissolved plume can be relatively large whereas the gaseous plume will be relatively small in size.

Health and safety

2-chlorophenol should be handled with care, as it is toxic, corrosive and flammable.

Principal resources

Chlorinated phenols are manufactured by the chlorination of phenol. Chlorophenols have been used as biocides and for the production of more chlorinated phenols. The chlorophenols have also been used as antiseptics, although they have largely been replaced by other chemical antiseptics. 2-chlorophenol is a chemical intermediate in phenolic resins and is used as a solvent for polyester fibers.

References

Agency for Toxic Substances and Disease Registry (ATSDR). 1999. Toxicological profile for Chlorophenols. U.S. Department of Health and Human Services, Public Health Service, Georgia, U.S.A. (Viewed December 2013)

Montgomery, John H. 2007. Groundwater Chemicals, Desk Reference, Fourth Edition, CRC Press, Taylor and Francis Group, Florida, U.S.A.

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