1) A compound that speeds up a chemical reaction. For example, amines are used to increase the rate of vulcanization of natural and synthetic rubbers, Alum is used to decrease the setting time of Plaster of Paris or Portland cement and metallic soaps are used to hasten the drying time for oil paints. It is also called Curing agent, Hardener, promoter, accelerator, and vulcanizer (for rubber).
2) A compound that maximizes the potential of a process. Examples of this slightly different connotation are the use of quaternary ammonium compounds to increase the activity (useful lifetime) of photographic developers and the use of a combustible liquid to make a fire more intense.
Synonyms and Related Terms
promoter; activator; accelerator; drier
Resources and Citations
- Wikipedia; Accelerator (disambiguation) (Accessed June 2023)
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- Theodore J. Reinhart, 'Glossary of Terms', Engineered Plastics, ASM International, 1988
- Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
- Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000