Manganous acid
Manganous Man"ga*nous, a. (Chem.) Of, pertaining to, designating, those compounds of manganese in which the element has a lower valence as contrasted with {manganic} compounds; as, manganous oxide. [1913 Webster]

{Manganous acid}, a hypothetical compound analogous to sulphurous acid, and forming the so-called manganites. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Manganous — Man ga*nous, a. (Chem.) Of, pertaining to, designating, those compounds of manganese in which the element has a lower valence as contrasted with {manganic} compounds; as, manganous oxide. [1913 Webster] {Manganous acid}, a hypothetical compound… …   The Collaborative International Dictionary of English

  • manganous sulfate — noun : an almost white salt MnSO4 that is usually obtained as the rose colored efflorescent crystalline tetrahydrate by treating manganese dioxide with sulfuric acid and powdered coal and that is used chiefly as a fertilizer and spray for plants …   Useful english dictionary

  • gray manganese ore — Manganite Man ga*nite, n. 1. (Min.) One of the oxides of manganese; called also {gray manganese ore}. It occurs in brilliant steel gray or iron black crystals, also massive. [1913 Webster] 2. (Chem.) A compound of manganese dioxide with a… …   The Collaborative International Dictionary of English

  • Manganite — Man ga*nite, n. 1. (Min.) One of the oxides of manganese; called also {gray manganese ore}. It occurs in brilliant steel gray or iron black crystals, also massive. [1913 Webster] 2. (Chem.) A compound of manganese dioxide with a metallic oxide;… …   The Collaborative International Dictionary of English

  • manganite — [maŋ′gənīt΄] n. 1. a dark colored, shiny mineral, MnO(HO), that is an ore of manganese; hydrous manganese oxide 2. any of a series of salts that may be considered as derivatives of manganous acid, the hydroxide of tetravalent manganese …   English World dictionary

  • manganese processing — Introduction       preparation of the ore for use in various products.       Manganese (Mn) is a hard, silvery white metal with a melting point of 1,244° C (2,271° F). Ordinarily too brittle to be of structural value itself, it is an essential… …   Universalium

  • steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …   Universalium

  • Microbial metabolism — is the means by which a microbe obtains the energy and nutrients (e.g. carbon) it needs to live and reproduce. Microbes use many different types of metabolic strategies and species can often be differentiated from each other based on metabolic… …   Wikipedia

  • equivalent weight — Chem. the combining power, esp. in grams (gram equivalent), of an element or compound, equivalent to hydrogen as a standard of 1.00797 or oxygen as a standard of 8; the atomic weight divided by the valence. [1925 30] * * * or combining weight… …   Universalium

  • chemical element — Introduction also called  element,         any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.       This article considers the… …   Universalium

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