senarmontite

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Related to Antimony trioxide: antimony oxide, mercuric bromide

senarmontite

[‚sen·ər′män‚tīt]
(mineralogy)
Sb2O3 A colorless or grayish mineral composed of native antimony trioxide occurring in masses or as octahedral crystals.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Antimony trioxide Sb2O3 is one of the most important antimony compounds which has a large number of industrial applications.
Temperature 120[degrees]C in all reactions Catalyst 0.2% [Sb.sub.2][O.sub.3] (Antimony trioxide) Total reaction time 10 h Pressure Gradual fall up to absolute vacuum Solvent Distilled water Stirring speed 300 rpm TABLE 2.
It has been shown that adding the antimony trioxide of 7 wt% results in a slight increase in toxicity, whereas in case of the sample consisting of 14 wt%, toxicity drops reaching the best result from all studied materials.
Incorporated in 1988, CCPL is engaged in the manufacture of antimony trioxide, an inorganic compound used as a flame retardant and catalyst in the manufacture of polyester.
Key flame retardants and material groups considered in the study include Alumina Trihydrate (ATH), brominated, chlorinated, phosphorus-based, Antimony Trioxide, and others (melamine-based, zinc-based, and magnesium hydroxide).
"Dry blends" were first prepared, by absorbing the plasticizer composition in PVC powder, as follows: (a) mixed all ingredients except plasticizer, clay and antimony trioxide in a container using a spatula; (b) warmed up a 40 [cm.sup.3] Brabender mixing bowl with sigma blades at 90[degrees]C and 40 rpm for 2 min; (c) added the hand-mixed ingredients to the mixing bowl and mixed for 30 sec; (d) added the plasticizer to the mixing bowl, mixed for 6 min (with 50 phr or 52 phr plasticizer) or 10 min (with 83 phr plasticizer), and recorded time for complete plasticizer absorption by visual observation (i.e., dry blend time); (e) for filled compositions, added clay and/or antimony trioxide and mixed for 60 sec; and (f) stopped and removed the dry blend.
As regards the modification of epoxy material by antimony trioxide, time to ignition is much longer at a heat exposure of 30 kW/[m.sup.2] as compared to unmodified Epidian 561.
Antimony trioxide is the product of choice in masterbatch formulations, although others such as zinc borate and zinc molybdate can be used as well.
Antimony trioxide is a suspected carcinogen and is considered a priority pollutant by the U.S.
(a) Chemical NOAEL Quantal end point Antimony trioxide (b) 0.51 ([0.42.sub.HEC]) (U.S.
is a Belgian producer of high-grade antimony trioxide.