What is another word for ferrous sulphate?
Pronunciation: [fˈɛɹəs sˈʌlfe͡ɪt] (IPA) 
Ferrous sulphate, also known as iron (II) sulphate, is a chemical compound commonly used in various industries. It serves as a source of iron in the production of steel and is also used in the manufacturing of pigments, fertilizers, and water treatment products. There are several synonyms for ferrous sulphate, including iron sulphate, green vitriol, copperas, melanterite, and ferrous sulfate heptahydrate. Green vitriol is derived from the Latin word "vitriolum," which means glassy, and alludes to the compound's crystalline properties. Copperas was historically used as a mordant in textile dyeing. Melanterite, on the other hand, is a naturally occurring mineral that is a hydrated form of ferrous sulphate.
