antimony trioxide

noun

Definition of antimony trioxide

: a white crystalline compound Sb2O3 or Sb4O6 occurring native as valentinite and senarmontite, formed when antimony burns, and used chiefly as a source of other antimony compounds and as a pigment especially in fire-retardant paints

called also antimonious oxide

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“Antimony trioxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antimony%20trioxide. Accessed 27 Jul. 2021.

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