ALUMINUM - 0 companies

Aluminium (IPA: /ˌæljʊˈmɪniəm/, /ˌæljəˈmɪniəm/) or aluminum is a silvery and ductile member of the poor metal group of chemical elements. It has the symbol Al; its atomic number is 13. Aluminium is the most abundant of all metals and the third most abundant element in the Earth's crust, after oxygen and silicon.

CHEMICALS - 91 companies

A chemical substance is a material with a definite chemical composition. It is a concept that became firmly established in the late eighteenth century after work by the chemist Joseph Proust on the composition of some pure chemical compounds such as basic copper carbonate.[1] He deduced that: "All samples of a compound have the same composition; that is, all samples have the same proportions, by mass, of the elements present in the compound".

COPPER - 5 companies

Copper is a chemical element in the periodic table that has the symbol Cu (Latin: cuprum) and atomic number 29. It is a ductile metal with excellent electrical conductivity, and finds extensive use as an electrical conductor, heat conductor, as a building material, and as a component of various alloys.

GOLD - 120 companies

Gold is a chemical element with the symbol Au (from the Latin aurum) and atomic number 79. It is a highly sought-after precious metal which, for many centuries, has been used as money, a store of value and in jewelry.

INDUSTRIAL METALS - 167 companies

In chemistry, a metal (Greek: Metallon) is an element that readily loses electrons to form positive ions (cations) and has metallic bonds between metal atoms. Metals form ionic bonds with non-metals. They are sometimes described as a lattice of positive ions surrounded by a cloud of delocalized electrons.

NON - METALLICS - 34 companies

on-metallic inclusions arise because of many physical-chemical effects which proceed in molten and consolidated metal during its production.
Non-metallic inclusions which arise because of different reactions during metal production are called natural. They include oxides, sulphides, nitrides and phosphides.

SILVER - 7 companies

Silver is a chemical element with the symbol Ag (Latin: argentum) and atomic number 47. A soft white lustrous transition metal, it has the highest electrical and thermal conductivity for a metal.