Chemistry

Efflorescence Definition Efflorescence is a whitish, powdery deposit on the surface of rocks or soil in dry regions. It is formed as mineral-rich water rises…

Sulfuric Acid Definition Sulfuric acid is a strong corrosive acid. It combines very easily with water, making it a good drying agent. Sulfuric acid is…

Ammonium Chloride Definition Ammonium Chloride (NH4Cl) is a white crystalline compound used in dry cells, as a soldering flux, and as an expectorant. It is…

Sodium Carbonate Definition Sodium Carbonate is a colourless or white odourless soluble crystalline compound existing in several hydrated forms and used in the manufacture of…

Molten Salt Definition Molten Salt is self-descriptive; it is melted salts, another common name is Fused Salts. It is a salt that tends to be…

Corundum Definition Corundum is an extremely hard mineral occurring in many colors, either as shapeless grains or as rhombohedral crystals. It also occurs in gem…

Chromium Definition Chromium is a hard, shiny, steel-gray metallic element that is rust-resistant and does not tarnish easily. It is used to plate other metals,…

Ruby Gemstone Definition Ruby is a stone of nobility, considered the most magnificent of all gems, the queen of stones and the stone of kings.…

About Sapphire Definition Sapphire is a clear, fairly pure form of the mineral corundum that is usually blue but may be any color except red.…

Aluminium Oxide Definition Aluminium oxide is a white or colourless insoluble powder occurring naturally as corundum and used in the production of aluminium and its…

Zinc Oxide Definition Zinc oxide is a white powder, ZnO, which used as a pigment and in cosmetics, dental cement, matches, printing inks, and glass,…

Ionic Compound Definition Ionic compound is a compound formed by ions bonding together through electrostatic forces. Ionic compounds are also known as electrically neutral compounds:…