1. بيت
  2. ستيمنيت المعدنية antimonite

المنتجات

Stibnite | Antimony, Sulfide, Ore | Britannica

Stibnite and the analogous sulfides of arsenic and bismuth (orpiment and bismuthinite, respectively) form a group of minerals that have similar physical properties ( see sulfide …

Sulfid antimonitý – Wikipedie

Sulfid antimonitý (chemický vzorec Sb 4 S 6 nebo někdy zkráceně jen Sb2S3) je pevná látka, velmi málo rozpustná ve vodě, ovšem dobře rozpustná v roztocích rozpustných sulfidů nebo hydrogensulfidů. Se silnými kyselinami reaguje za vzniku antimonitých solí a uvolnění sulfanu, který způsobuje silný zápach po zkažených ...

Global Regulator IscR Positively Contributes to Antimonite …

Antimonial compounds can be found as a toxic contaminant in the environment. Knowledge on mechanisms of microbial Sb oxidation and its role in microbial tolerance are limited. Previously, we found that Comamonas testosteroni S44 was resistant to multiple heavy metals and was able to oxidize the toxi …

antimonite | 《》

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Isolation and Characterization of Antimony-Reducing Bacteria …

A part of the antimonite which was produced in medium precipitated as a bio-mineral containing approximately 50.0% antimony, 33.5% oxygen, 12.7% carbon, 2.0% sodium and 1.9% magnesium by weight.

Removal of Antimonite (Sb(III)) and Antimonate (Sb(V)) …

Zirconium oxide (ZrO2)-carbon nanofibers (ZCN) were fabricated and batch experiments were used to determine antimonite (Sb(III)) and antimonate (Sb(V)) adsorption isotherms and kinetics. ZCN have a maximum Sb(III) and Sb(V) adsorption capacity of 70.83 and 57.17 mg/g, respectively. The adsorption process between ZCN …

Proteomics and Genetics for Identification of a Bacterial Antimonite …

Antimony (Sb) and its compounds are listed by the United States Environmental Protection Agency (USEPA, 1979) and the European Union (CEC, 1976) as a priority pollutant. Microbial redox transformations are presumed to be an important part of antimony cycling in nature; however, regulation of these p …

Microbial Antimony Biogeochemistry: Enzymes, Regulation, …

Abstract. Antimony (Sb) is a toxic metalloid that occurs widely at trace concentrations in soil, aquatic systems, and the atmosphere. Nowadays, with the development of its new industrial applications and the corresponding expansion of antimony mining activities, the phenomenon of antimony pollution has become an increasingly …

HISTORY OF USAC | usantimony

From 1971 until 1976 the concentrates were converted to metal first using the English precipitation method and the using an electro-winning plant. From 1977 until 1983 the concentrates were converted to sodium antimonite hexa-hydrate and sold to the television industry as a fining agent for television bulbs. Thereafter, antimony metal, primarily from …

A Novel Whole-Cell Biosensor for Bioavailable Antimonite in …

Antimony (Sb) is an emerging contaminant, and its on-site speciation analysis is central to the accurate evaluation of its bioavailability and toxicity. The whole-cell biosensors (WCBs) for Sb (III) are promising but challenging due to the lack of Sb (III)-specific recognition components. Here, we constructed a novel Sb (III)-specific WCB …

Antimonite: Mineral information, data and localities.

The name 'antimonite' is a commonly-used popular name for stibnite in many European countries. In chemistry, an antimonite is a salt of antimony(III).

Antimony

Antimony. A native element, antimony metal is extracted primarily from stibnite, which contains 72 percent antimony and 28 percent sulfur. Stibnite is mined in only a few …

Antimonite Complexation with Thiol and Carboxyl/Phenol …

Peatlands and other wetlands with abundant natural organic matter (NOM) are important sinks for antimony (Sb). While formation of Sb(III) sulfide phases or Sb(III) binding to NOM are discussed to decrease Sb mobility, the exact binding mechanisms remain elusive. Here, we reacted increasing sulfide concentrations with purified model peat at pH 6, forming …

Chemistry of Antimony (Z=51)

Antimony trisulfide. Antimony trisulfide, Sb2S3 S b 2 S 3, is a sulfide mineral commonly called stibnite or antimonite. Antimony trisulfide exists as a gray/black crystalline solid (orthorhombic crystals) and an amorphous red-orange powder. It turns black due to oxidation by air. Antimony trisulfide is the most important source for antimony.

Antimonit – Wikipédia

Antimonit. Az antimonit (stibnit, elavult neve: piskolt vagy piskolc [1]) az antimon fontos érce, rombos kristályrendszerű szulfidásvány, a tetraedrit csoport ásványegyüttesébe tartozik. Rombos rendszerben kristályosodik.

ANTIMONITE definition and meaning | Collins English …

2 meanings: 1. chemistry an oxyanion of antimony or a salt containing an oxyanion of antimony 2. mineralogy obsolete a mineral.... Click for more definitions.

Phylogenetic and genome analyses of antimony-oxidizing …

Semantic Scholar extracted view of "Phylogenetic and genome analyses of antimony-oxidizing bacteria isolated from antimony mined soil" by Jie Li et al.

Stibnite | Properties, Occurrence, Formation and Uses Areas

Stibnite is often associated with other minerals and ores, including antimony minerals such as antimonite, as well as sulfide minerals like pyrite, galena, and sphalerite.

Antimonite Definition & Meaning

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that's only in the Merriam-Webster Unabridged Dictionary. The meaning of ANTIMONITE is stibnite.

Abiotic and biotic factors responsible for antimonite

These results indicate that besides the biotic factors, the cellular H 2 O 2 induced by Sb (III) also catalyzes bacterial Sb (III) oxidation as an abiotic oxidant. The data reveal a novel mechanism that bacterial Sb (III) oxidation is associated with abiotic (cellular H 2 O 2) and biotic (AnoA and AioAB) factors and Sb (III) oxidation process ...

Stibnite

Stibnite or antimonite is sulfide metalloid mineral of antimony with chemical formula (Sb2 S 3 ). The color is shiny lead-gray tarnishing to black with massive, granular, radiating, and …

Antimonite | Inner Reflection | The Witchcraft

Antimonite, also known as Stibnite, is a mineral primarily composed of antimony and sulfur, with a crystal structure of needles or columns.

Arabidopsis NIP1;1 Transports Antimonite and Determines Antimonite …

For antimonite [Sb (III)] treatment of plants and yeast, potassium antimonyl tartrate (Wako, Osaka, Japan) was added to the medium at the concentrations shown in individual experiments.

Microbial Antimony Biogeochemistry: Enzymes, Regulation, …

In this review, we summarize the recent research on bacterial antimony transformations, especially those regarding antimony uptake, efflux, antimonite oxidation, and antimonate reduction. We conclude that our current understanding of antimony biochemistry and biogeochemistry is roughly equivalent to where that of arsenic was …

Antimony: Mineral information, data and localities.

From the medieval latin 'antimonium', originally applied to stibnite. The etymology is uncertain; the popular etymology, from ἀντίμοναχός anti-monachos or French antimoine, …

Sigma-Aldrich: Analytical, Biology, Chemistry & Materials …

Sigma-Aldrich: Analytical, Biology, Chemistry & Materials Science ...

Stibnite

Stibnite - Antimonite. La stibnite Sb2S3 è un minerale, un solfuro di antimonio. Sono suoi sinonimi antimonite e stibina. Il nome stibnite deriva da stibio, voce desueta per antimonio, e (antimo)nite. Il nome stibina deriva dal greco στίβι = nero-antimonio, conosciuto già nell'antichità. Il nome antimonite deriva forse dall'arabo 'utmud.

Efficient removal of both antimonite (Sb

Increasing attention has been focused on antimony (Sb) pollution and remediation in aquatic ecosystems, where efficient removal technologies for Sb compounds, particularly Sb(iii) and Sb(v), from environmental water are urgently needed. Thus, herein, a mesoporous material, titanate nanotubes (3 nm, TiO2 NTs)

Arsenite Oxidase Also Functions as an Antimonite Oxidase

Comparison of Michaelis-Menten kinetic data obtained for arsenite (A) and antimonite (B) for the recombinant Rhizobium sp. strain NT-26 arsenite oxidase with 20 μM horse heart cytochrome c as the electron acceptor.

CHEBI:30297

Chemical Entities of Biological Interest (ChEBI) is a freely available dictionary of molecular entities focused on 'small' chemical compounds.

Antimonite

Exists as oxides (antimony xide, antimony tetroxide, antimony pentoxide, sodium antimonite, antimonic acid), halides (SbX3 and SbX 5 ), antimonides (combinations of Sb and various metals), stibine (SbH 3 -gaseous), and organoantimony compounds.

The Mineral stibnite

The Mineral stibnite. Stibnite is named after the latin stibium, which is the old name of the element antimony (Sb). Stibnite was and continues to be the primary ore of antimony. …

Comamonas testosteroni antA encodes an antimonite-translocating …

Here we describe a novel bacterial P 1B -type antimonite (Sb (III))-translocating ATPase from the antimony-mining bacterium Comamonas testosterone JL40 that confers resistance to Sb (III). In a comparative proteomics analysis of strain JL40, an operon (ant operon) was up-regulated by Sb (III). The ant operon includes three genes, …

Oxid antimonitý – Wikipedie

V pevném stavu se oxid antimonitý vyskytuje ve struktuře, která tvarem odpovídá struktuře adamantanu. Každý atom antimonu je vázán se třemi atomy kyslíku a ty následně s dalšími třemi atomy antimonu. Všechny atomy antimonu jsou tedy vzájemně provázány přes "kyslíkové můstky". Je proto vhodnější zapisovat vzorec ...

Stibnite Mineral Data

From the Greek, stimmi or stibi, "antimony," thence to the Latin, stibium. Also from the Greek anthemon, "flower" in allusion to the form of crystal druses.

L'angolo della Geologia: Chimica

La stibnite Sb2S3 è un minerale, un solfuro di antimonio. Sono suoi sinonimi antimonite e stibina. Il nome stibnite deriva da stibio, voce desueta per antimonio, e (antimo)nite. Il nome stibina deriva dal greco στίβι = nero-antimonio, conosciuto già nell'antichità. Il nome antimonite deriva forse dall'arabo 'utmud.