Chemistry

Uses of Arsenic Arsenic is a well-known poison. Arsenic compounds are sometimes used as rat poisons and insecticides but their use is strictly controlled. Surprisingly, arsenic…

Arsenic is highly toxic in its inorganic form. Contaminated water used for drinking, food preparation and irrigation of food crops poses the greatest threat to…

Industrial Uses of Mercury Some common uses for mercury are to conduct electricity, measure temperature and pressure, act as a biocide, preservative, and disinfectant, as well…

Chemical properties of Mercury: Mercury (chemical symbol Hg) is an amazing element. It is one of the few metals which is liquid at room temperature.…

Chalcopyrite Definition – Chalcopyrite is a brassy yellow, metallic, tetragonal mineral, usually occurring as shapeless masses of grains and a hardness of 3.5 to 4…

Valence Electron Definition Valence electron is an electron in one of the outer shells of an atom that can participate in forming chemical bonds with…

Chalcanthite Definition Chalcanthite is a secondary mineral, which is natural, water-soluble copper sulphate (CuSO4·5H2O) and that is formed in arid climates or in rapidly oxidizing…

Potassium Carbonate Defintion Potassium carbonate (K2CO3) is a transparent, white, deliquescent, granular powder used in making soaps. It is also called potash. It can be…

Thenardite Definition Thenardite is a whitish vitreous mineral that consists of anhydrous sodium sulphate (Na2SO4) and occurs in saline residues. It is similar to Mirabilite,…

Bromine Definition Bromine is a reddish-brown volatile element of the halogen group found in compounds occurring in ocean water. It is a chemical element with…

Arsenic Definition Arsenic is a metalloid element most commonly occurring as a gray crystal, but also found as a yellow crystal and in other forms.…

Sodium Sulfate Definition Sodium sulfate is a white crystalline compound used as a mild natural laxative and in larger doses as a hydragogue cathartic. Its…