Manganese silicate

Heavy water, see Hydrogen[ H] oxide Heazlewoodite, see rn-Nickel disulfide Hematite, see Iron(III) oxide Hermannite, see Manganese silicate Hessite, see Silver telluride Hieratite, see Potassium hexafluorosilicate Hydroazoic acid, see Hydrogen azide Hydrophilite, see Calcium chloride Hydrosulfite, see Sodium dithionate(III)... 

Tellurite, see Tellurium dioxide Tenorite, see Copper(II) oxide Tephroite, see Manganese silicate(l—)... 

BAB1NGTONITE. This mineral is a relatively rare calcium-iron-manganese silicate, occurring in small black triclinic crystals, found in Italy, Norway and in the United States at Somerville and Athol, Massachusetts, and in Passaic County. New Jersey. It was named for Dr. William Babington. 

Manganese also passes into the slag because its oxide is basic and reacts with added Si02/ yielding molten manganese silicate ... 

We now find that the court has narrowed the patent to four product claims, and, as to these, the defendant can argue that he does not come within their terms. The reason The claims now left all call for the welding composition to have a major proportion of alkaline earth silicate, whereas the defendant s composition does not contain a major proportion of alkaline earth metal silicate, but rather a major proportion of manganese silicate. Manganese, however, is not classified as an alkaline earth metal, so that now the only thing that can save plaintiff s case is to have the court hold that manganese silicate is the equivalent of calcium or other alkaline earth silicates. Fortunately for the plaintiff, the court... 

Manganese Silicate. Approx MnSiOj. Occurs in nature as the minerals rhedonite, manganjmtite, tephroite. 

Thermal decomposition of rhodonite in plasma is similar to that of zircon sand. The mineral rhodonite, which is a manganese silicate (MnSiOs), has a high melting temperature but can be effectively dissociated in thermal plasma with the formation of manganese oxide (MnO) and silica (Si02) ... 

Fig. 31 SEM images of the as-prepared silicates (A) copper silicate (B) nickel silicate (C) cobalt silicate (D) manganese silicate, TEM images of the as-prepared silicates (E) copper silicate (inset magnified TEM image showing tube structures) (F) nickel silicate (G) cobalt silicate (H) manganese silicate. Reproduced from Ref, 65 with permission from The Royal Society of Chemistry.

Nitrogen adsorption/desorption isotherms of these silicates were measured and the surface properties of these metal silicates are listed in Table 2. These silicates had a significantly larger BET surface area than similar silicate materials synthesized with other methods (200-521 m g ). For example, manganese silicate s BET surface area was 649 m g, and the total volume was 1.433 cm g, both of which were the highest among reported metal silicates. 

In the guinea pig, zinc beryllium manganese silicate inhalation (8 h/d) for 40 months induced mild lymphocytic and large mononuclear cell reaction indicative of slight irritation about dust particles (Vorwald 1950). 

---