Fact sheets

NICNAS assesses the risks of industrial chemicals to human health and the environment, and makes recommendations to other government agencies that regulate the use and disposal of chemicals.

These fact sheets are for a general audience and contain information about the risks of certain chemicals for industrial use in Australia, including recommendations for safe use.

Please note, our recommendations are not always implemented by chemical regulators. For the most up-to-date information about how a particular chemical is regulated in your State or Territory you will need to contact other government agencies. Read What we do for details about our regulatory partners.


Chemical/trade name: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

The fact sheets are in alphabetical order by chemical or trade name. Click on a letter in the list or use the page links. A name that begins with a number can be found in 1,2,3...

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Click on the chemical name to read the full fact sheet.


CAS number(s): 95-50-1; benzene, 1,2-dichloro-

ortho-Dichlorobenzene (or o-Dichlorobenzene or o-DCB) is mainly used as a paint remover, as a degreaser (for grease traps, drains and car parts) and as a decarboniser in the car and marine industries. It has some uses in agricultural and veterinary industries.

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Last update 29 July 2018