noun. a metallic element having four allotropic forms; used in a wide variety of alloys; found in stibnite.
- metallic element
- atomic number 51
Sentences with antimony
1. Noun, singular or mass
Pewter is a metal alloy consisting of at least 90 percent tin and a mix of other metals like copper, bismuth and antimony as hardeners.
To make PET polyster, ethylene glycol is mixed with either terephthalic acid or methyl ester along with an antimony catalyst.