Which process is commonly used to produce metallic antimony from roasted oxide or sulfide concentrates?

Reduction with carbon (coal/coke) or iron in smelting

Electrolytic refining in aqueous solution

Hydrometallurgical leaching with cyanide

Direct thermal decomposition to the metal

Which historical medicinal use is antimony well known for?

Use in emetics and purgatives (antimony compounds)

As a dietary supplement for iron deficiency

As a primary analgesic (painkiller)

Tetrahedrite / fahlores containing Sb

Metastable, nonmetallic, produced from vapor condensation

Stable, conductive, used for wiring

Magnetic, ferromagnetic at room temperature

Amorphous glassy form used in optics

Chlorinated hydrocarbons used alone

Phosphate esters without halogens

Nitrogen-based intumescent systems only

Trivia · Knowledge

Ten multiple-choice questions on antimony's common oxidation states, allotropes, historical uses, typical minerals, and extraction methods.0 takes

Preview · 10 questions

01Which oxidation states are the most common for antimony in compounds?
02What is the primary ore mineral of antimony?
03Which allotrope of antimony is the shiny, silvery, metallic form commonly used industrially?
04Historically, which antimony compound was widely used as a flame-retardant synergist in plastics and textiles?
05Which process is commonly used to produce metallic antimony from roasted oxide or sulfide concentrates?
06Which historical medicinal use is antimony well known for?
07Which compound is formed when stibnite (Sb2S3) is roasted in air before reduction?
08Besides stibnite, which mineral is sometimes an important source of antimony?
09Which property describes the yellow allotrope of antimony?
10In modern fire-retardant formulations, antimony compounds most often act as a synergist with which halogenated species?