Part 6801

<hw>Man"ga*nate</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[Cf. F. <ets>manganate</ets>.]</ety> <fld>(Chem.)</fld> <def>A salt of manganic acid.</def>

<note>&hand; The manganates are usually green, and are wellknown compounds, though derived from a hypothetical acid.</note>

<h1>Manganesate</h1> <Xpage=890>

<hw>Man`ga*ne"sate</hw> <tt>(?)</tt>, <tt>n.</tt> <fld>(Chem.)</fld> <def>A manganate.</def> <mark>[Obs.]</mark>

<h1>Manganese</h1> <Xpage=890>

<hw>Man`ga*nese"</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[F. <ets>mangan\'8ase</ets>, It. <ets>mamaganese</ets>, sasso <ets>magnesio</ets>; prob. corrupted from L. <ets>magnes</ets>, because of its resemblance to the magnet. See <er>Magnet</er>, and cf. <er>Magnesia</er>.]</ety> <fld>(Chem.)</fld> <def>An element obtained by reduction of its oxide, as a hard, grayish white metal, fusible with difficulty, but easily oxidized. Its ores occur abundantly in nature as the minerals pyrolusite, manganite, etc. Symbol Mn. Atomic weight 54.8.</def>

<note>&hand; An alloy of manganese with iron (called <i>ferromanganese</i>) is used to increase the density and hardness of steel.</note>

<cs><mcol><col>Black oxide of manganese</col>, <col>Manganese dioxide &or; peroxide</col>, &or; <col>Black manganese</col> <fld>(Chem.)</fld>, <cd>a heavy black powder <chform>MnO2</chform>, occurring native as the mineral pyrolusite, and valuable as a strong oxidizer; -- called also familiarly <altname>manganese</altname>. It colors glass violet, and is used as a decolorizer to remove the green tint of impure glass.</cd> <col>Manganese bronze</col>, <cd>an alloy made by adding from one to two per cent of manganese to the copper and zinc used in brass.</cd></cs>

<h1>Manganesian</h1> <Xpage=890>

<hw>Man`ga*ne"sian</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[Cf. F. <ets>mangan\'82sien</ets>.]</ety> <fld>(Chem.)</fld> <def>Manganic.</def> <mark>[R.]</mark>

<h1>Manganesic</h1> <Xpage=890>

<hw>Man`ga*ne"sic</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[Cf. F. <ets>mangan\'82sique</ets>.]</ety> <fld>(Chem.)</fld> <def>Manganic.</def> <mark>[Obs.]</mark>

<h1>Manganesious</h1> <Xpage=890>

<hw>Man`ga*ne"sious</hw> <tt>(?)</tt>, <tt>a.</tt> <fld>(Chem.)</fld> <def>Manganous.</def>

<h1>Manganesium</h1> <Xpage=890>

<hw>Man`ga*ne"si*um</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[NL.]</ety> <def>Manganese.</def>

<h1>Manganesous</h1> <Xpage=890>

<hw>Man`ga*ne"sous</hw> <tt>(?)</tt>, <tt>a.</tt> <fld>(Chem.)</fld> <def>Manganous.</def>

<h1>Manganic</h1> <Xpage=890>

<hw>Man`gan"ic</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[Cf. F. <ets>manganique</ets>.]</ety> <fld>(Chem.)</fld> <def>Of, pertaining to resembling, or containing, manganese; specif., designating compounds in which manganese has a higher valence as contrasted with <i>manganous</i> compounds. Cf. <er>Manganous</er>.</def>

<cs><col>Manganic acid</col>, <cd>an acid, <chform>H2MnO4</chform>, formed from manganese, analogous to sulphuric acid.</cd></cs>

<h1>Manganiferous</h1> <Xpage=890>

<hw>Man`ga*nif"er*ous</hw> <tt>(?)</tt>, <tt>a.</tt> <ety>[<ets>Manganese</ets> + <ets>-ferous</ets>.]</ety> <def>Containing manganese.</def>

<h1>Manganite</h1> <Xpage=890>

<hw>Man"ga*nite</hw> <tt>(?)</tt>, <tt>n.</tt> <p><b>1.</b> <fld>(Min.)</fld> <def>One of the oxides of manganese; -- called also <altname>gray manganese ore</altname>. It occurs in brilliant steel-gray or iron-black crystals, also massive.</def>

<p><b>2.</b> <fld>(Chem.)</fld> <def>A compound of manganese dioxide with a metallic oxide; so called as though derived from the hypothetical <i>manganous</i> acid.</def>

<h1>Manganium</h1> <Xpage=890>

<hw>Man*ga"ni*um</hw> <tt>(?)</tt>, <tt>n.</tt> <ety>[NL.]</ety> <def>Manganese.</def>