methyl chloroform


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methyl chloroform

[′meth·əl ′klȯr·ə‚fȯrm]
(organic chemistry)
References in periodicals archive ?
(+)Controlled substances that include chlorofluorocarbons, halons, methyl chloroform, and carbon tetralchloride.
Other solvents may serve as substitutes for Freon and methyl chloroform, but they too may be regulated eventually; not in 1994.
Under the Montreal Protocol on Substances that Deplete the Ozone Layer, which has been signed by more than 70 countries, the EC regulations which currently apply state that methyl chloroform or 1,1,1 trichloroethane tonnages will be frozen from 1st January 1992 to 1989 production levels.
carbon tetrachloride 1.1 methyl chloroform 0.1 CFC-13 1.0 CFC-111 1 .0 CFC-112 1.0 CFC-211 1.0 CFC-212 1.0 CFC-213 1.0 CFC-214 1.0 CFC-215 1.0 CFC-216 1.0 CFC-217 1.0
* Ending production of methyl chloroform, a dry-cleaning agent, by 1996, nine years early
It has been known for some time that pre-treatment chemicals such as methyl chloroform, which is widely used for metal cleaning, have a damaging effect on the ozone layer and, in some cases, their use will be prohibited with corresponding implications for companies with paint shops.
This includes compounds such as 1,1,1-trichloroethane (methyl chloroform; which has previously been considered as |safe') and the newly developed HCFCs.
For example, they have learned that their favored universal solvent cleaning agent, 1,1,1-trichloroethane (methyl chloroform), would carry an increased tax of 21.1 cents per pound in 1993, escalating to 53.5 cents per pound in 1995.
The recent trend by suppliers to describe 1,1,1 trichloroethane as methyl chloroform has been an attempt to simplify the issue.
Instead, they calculate its concentrations by gauging levels of methyl chloroform, a pollutant that reacts with OH.