Utilization of red antimony ore

Red antimony ore is a natural mineral of antimony. The main use of antimony is that its oxide antimony trioxide is used to make refractories. Except for halogen-containing polymer flame retardants, it is almost always used with halide flame retardants.

The process of antimony trioxide forming antimony halide can slow down combustion, which is why it has flame retardant effect. These compounds react with hydrogen atoms, oxygen atoms and hydroxyl radicals, and finally put out the fire.

These flame retardants are commercially used in children's clothing, toys, aircraft and car seat covers. It is also used as an additive of polyester resin in the glass fiber composite (commonly known as glass fiber reinforced plastic) industry, such as the hood of light aircraft. Resin burns in case of fire, but its combustion will stop automatically after the fire is put out.

Extended data:

An alchemical symbol of antimony is ♀ shape. As early as 3 100 BC, before the Egyptian dynasty, when cosmetics were just invented, antimony trisulfide was used as eye shadow powder for cosmetics.

In the 8th century, Jaber first made pure antimony. However, the controversy continues, and the translator Marcelan Berthelot claims that Jaber's book does not mention antimony.

In 1783, William Henry Bragg, a Swedish-born British scientist, recorded pure antimony naturally existing in the earth's crust for the first time. Various samples were collected from the Sala silver mine in Sala, Simanland, Sweden.

References:

Baidu encyclopedia-antimony