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Metalloid compounds generate various biological effects on cells and tissues and their therapeutic and potential uses have been evolving over centuries, starting, for example, with the empiric use of arsenic in ancient times up to the current Food and Drug Administration approval of As 2 O 3 for the treatment of acute promyelocytic leukemia in human. . However, opportunities …
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Antimony is a chemical element with symbol Sb (from Latin: stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb 2 S 3). Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name, kohl.
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Stibnite (Sb 2 S 3) is the predominant ore mineral of antimony. The most important use of antimony metal is as a hardener in lead for storage batteries. The metal also finds applications in solders and other alloys. Antimony trioxide is the most important of the antimony compounds and is primarily used in flame-retardant formulations.
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In book: Inorganic Reactions and Methods: The Formation of the Bond to Hydrogen (Part 2), Volume 2 (pp.33-34)
Antimony trichloride is a colorless and soft solid that has a strong odor. Antimony trioxide is a white solid that dissolves a little in water. The other antimony(III) halides all react with water except for antimony trifluoride. +5 compounds are strong oxidizing agents. Antimony pentafluoride is highly reactive, as well as antimony pentoxide.
Bibliography: List of 131 compounds in the Solution Calculator database for which the density function is defined are for the Perry's Chemical Engineers' Handbook.. D.W. Green, R.H. Perry, Perry's Chemical Engineers' Handbook, McGraw-Hill, (2) 99-118, 2008.
Antimony (Sb) is a silver-white brittle solid or a dark-gray, lustrous powder. It can be harmful to the eyes and skin. Antimony can also cause problems with the lungs, heart, and stomach. Workers may be harmed from exposure to antimony and its compounds. The level of exposure depends upon the dose, duration, and work being done.
Antimony oxide is being used as flame retardant in increasing quantities. Antimony is a component of many lead and tin alloys, which are important materials for making bearings and solders. Preparation, properties, and usage of the antimony halides, oxides, sulfides, and other compounds, as well as organometallic compounds are described.
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Pentavalent antimony compounds have been the mainstay of antileishmanial therapy for half a century, but lipid formulations of amphotericin B (though expensive and administered parenterally) represent a major advance for treating visceral leishmaniasis. A pressing need is for the technological advances in the understanding of the immune ...
Abstract The article contains sections titled: 1. Introduction 2. Physical Properties 3. Chemical Properties 4. Occurrence 5. Beneficiation 6. Recovery …
ANTIMONY COMPOUNDS Reference Concentration Antimony Trioxide - 0.0002 mg/m3 for respiratory effects - rats Inventory Estimates of Antimony Compounds * The mass emission rates are based on input data that may or may not be accurate. The reader should not consider the inventory accurate to three decimal places (one thouh of a ton).
United States Antimony Corporation (USAC) NYSE (uamy) is a rapidly growing natural resource company that is increasing its raw material supply of antimony from properties in Mexico and third parties around the world. USAC has produced various antimony products since 1969 and is a fully integrated mining, transportation, milling, smelting, and selling company. USAC …
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Acetone is a manufactured chemical that is also found naturally in the environment. It is a colorless liquid with a distinct smell and taste. It evaporates easily, is flammable, and dissolves in water. It is also called dimethyl ketone, 2-propanone, and beta-ketopropane. Acetone is used to make plastic, fibers, drugs, and other chemicals.
Mar 22, 2009· no its not. Antimony is a pure element. Antimony is also a semimetal. (Semimetal is a class of elements.) You can find out more about Antimony here.
Nov 11, 2016· Antimony trisulphide Sb2S3 is a compound and does not have an atomic number. Antimony does and so does sulfur - but not the compound
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In addition, antimony compounds are used for cosmetic and therapeutic purposes. In recent times this metal has increased in importance as a flame retardant and in the production of semi-conductors. The most important uses of antimony and its compounds can be seen in Table 1 (Plunkert 1981).
Conclusions This is the first large-scale identification of compounds, taxa and environments of particular concern for co-selection of resistance against antibiotics, biocides and metals.
282 §302.4 40 CFR Ch. I (7–1–04 Edition) TABLE 302.4—LIST OF HAZARDOUS SUBSTANCES AND REPORTABLE QUANTITIES—Continued [Note: All Comments/Notes Are Located at the End of This Table] Hazardous substance CASRN Statutory codedagger;
Antimony and its compounds Antimony compounds are used as a synergist for halogenated flame retardants additives in some plastic materials to meet non-flammability standards required by customers. When so used, the concentration of antimony compounds ranges from 1% to 15% and it is disclosed
Many translated example sentences containing "antimony compounds" – Chinese-English dictionary and search engine for Chinese translations.
antimony compounds such as piperazine antimony tartrate were used as drugs against bilharzia. ANTIMONY IN DRINKING-WATER 2 1.5 Environmental fate The emission of antimony into the human environment appears to be exclusively the result of human activity. Most emitted antimony is in the form of ATO, which is
Today, knowledge about antimony compounds has tremendously increased, and the application range of antimony has become much wider. Due to the diversity of the applications of antimony, researchers may stay focused on their own field while lacking familiarity with antimony-related activities in other fields. (Imprint: Nova).
Antimony is also used as an alloy in solder. Highly purified antimony is used in semiconductor technology to prepare the intermetallic compounds indium, aluminum, and gallium antimonide for diodes and infrared detectors. Antimony compounds (especially the trioxide) are widely used as flame retardants in paints, plastics, rubber, and textiles.
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Antimony Compounds Hazard Summary Everyone is exposed to low levels of antimony in the environment. Acute (short-term) exposure to antimony by inhalation in humans results in effects on the skin and eyes. Respiratory effects, such as inflammation of the lungs, chronic bronchitis, and chronic emphysema, are the primary effects noted from