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thermal black

noun
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Definition of thermal black

: a carbon black made by thermal decomposition of hydrocarbons (as natural gas and acetylene) in preheated furnaces

— called also furnace thermal black

— compare acetylene black

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“Thermal black.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thermal%20black. Accessed 13 Jul. 2020.

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