substitution reaction

(redirected from Chemical substitution)
Also found in: Dictionary.
Related to Chemical substitution: addition reaction

substitution reaction

[‚səb·stə′tü·shən rē‚ak·shən]
(chemistry)
Replacement of an atom or radical by another one in a chemical compound.
References in periodicals archive ?
The push for expanding DHS's authority to require such things as IST is not likely to go away, and the events surrounding the oil spill in the Gulf of Mexico are likely to provide ammunition for those advocating approaches to chemical security that emphasize chemical substitution and process modifications, as well as expanded whistleblower protections, etc.
No other company is requiring the all-important, but often forgotten, second step to truly transformational phase-outs: putting a system in place that avoids regrettable chemical substitutions.
The greatest number of chemical substitutions, 18, occurred in a segment dubbed human accelerated region 1, or HAR1.
Further work on the influence of chemical substitutions and measurements of electron dynamics are under way or planned for the future.
DEC will provide companies with information about how to reduce quantities and stocks of hazardous materials wherever possible and to eliminate hazardous waste through chemical substitutions, changes in industrial processes, reuse, recycling, and the use of new technologies to reduce the quantity and toxicity of hazardous substances before they have a chance to enter the environment.
Equipment modifications and chemical substitutions resulted in the total elimination of more than 28,000 lbs.
The scientists studied a specific section of the mitochondrial DNA that changes rapidly through random chemical substitutions.

Full browser ?