 The largest applications for metallic antimony are as <unk> material for lead and tin and for lead antimony plates in lead – acid batteries . <unk> lead and tin with antimony improves the properties of the alloys which are used in solders , bullets and plain bearings . Antimony compounds are prominent <unk> for chlorine and <unk> @-@ containing fire retardants found in many commercial and domestic products . An emerging application is the use of antimony in <unk> . 
