alumina trihydrate

noun

: the trihydrate of alumina Al(OH)₃ used primarily for its flame-retardant properties

The influence of the inorganic flame retardants, including alumina trihydrate (ATH) and borax … on the mechanical properties and flammability of high density polyethylene has been studied.—

Journal of Technology and Science, 9 May 2010

Note: At approximately 350 degrees Fahrenheit, Al(OH)₃ decomposes to Al₂O₃·3H₂O, absorbing heat and releasing water vapor.

—abbreviation ATH compare aluminum hydroxide

Word History

First Known Use

1898, in the meaning defined above

Time Traveler

The first known use of alumina trihydrate was in 1898

See more words from the same year

Cite this Entry

Style

“Alumina trihydrate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alumina%20trihydrate. Accessed 30 Nov. 2024.

Copy Citation