Jun 12, 2013· The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent. A 7.99-g sample of stibnite, an ore of antimony, is dissolved in hot, concentrated HCl(aq) and passed over a reducing agent so that all the antimony is in the form Sb3 (aq). The Sb3 (aq) is completely oxidized by 32.4 mL of a 0.140 M aqueous solution of KBrO3(aq).
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Estimates of the abundance of antimony in the Earth's crust range from 0.2 to 0.5 parts per million. Antimony is chalcophile, occurring with sulfur and the heavy metals, lead, copper, and silver. Over a hundred minerals of antimony are found in nature. Stibnite (Sb 2 S 3 ) is the predominant ore mineral of antimony.
2 answers. Behnam Rahimi Monjezi; I need a patent. ... Is it possible to make Ag and Sb soluble with acid digestion for ICP-OES, when we have an antimony ore sample? Thanks in advance.
Mar 03, 2011· This fact sheet answers the most frequently asked health questions about antimony. For more information, you may call the ATSDR Information Center at 1-888-422-8737. This fact sheet is one in a series of summaries about hazardous substances and their health effects.
l Answer all questions. l You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. ... In the first stage of the extraction of antimony from a high-grade ore, antimony sulfide is roasted in air to convert it into antimony(III) oxide (Sb 2O
The amount of antimony in the crust of the Earth is between 0.2 to 0.5 parts per million (ppm). Although the compound is scarce, it is present in more than a hundred minerals. A pure sample of antimony can be extracted, but most of the time antimony is present in sulfide stibnite, which is the principal ore …
What is Antimony? - Definition, Uses & Facts. ... and, more importantly, who discovered antimony? Let's tackle the answer to these questions by beginning our exploration with the background and ...
Antimony reacts with sulfur according to this equation. 2Sb(s) + 3S(s) → Sb 2 S 3 (s)What is the percentage yield for a reaction in which 1.40 g of Sb 2 S 3 is obtained from 1.73 g of antimony and a slight excess of sulfur? a) 80.9%. b) 58.0%
Jan 31, 2019· Heating an ore of antimony (Sb2S3) in the presence of iron gives the element antimony and iron(II) sulfide. Sb2S3(s) + 3 Fe(s) → 2 Sb(s) + 3 FeS(s) When 15.7 g Sb2S3 reacts with an excess of Fe, 9.84 g Sb is produced. What is the percent yield of this reaction?
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Answers for alloy-of-lead,-tin-and-antimony,-developed-by-gutenberg crossword clue. Search for crossword clues found in the Daily Celebrity, NY Times, Daily Mirror, Telegraph and major publications. Find clues for alloy-of-lead,-tin-and-antimony,-developed-by-gutenberg or most any crossword answer or clues for crossword answers.
The atomic number of antimony (Sb) is 51. The atomic weight of Sb is 121.76 grams per mole. See the Web Links to the left of this answer for a periodic table with more information about this element!
Synonyms, crossword answers and other related words for LEAD-GLANCE [galena] We hope that the following list of synonyms for the word galena will help you to finish your crossword today. We've arranged the synonyms in length order so that they are easier to find.
But pharmaceutical uses of antimony have a long history. In the ancient world it was known primarily in the form of its black sulphide ore, called stibnite, which the Greek physician Dioscorides recommended for skin complaints in the first century AD. The Egyptians, meanwhile, used stibnite as a cosmetic, applying it as a form of mascara.
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Mar 22, 2013· Antimony is a naturally occurring metal typically found in ore deposits.  Antimony is widely used in industry and present in all kinds of everyday itemsMost commonly, the metal has been used as a flame retardant in products as diverse as toys, car seat covers, engine covers for light aircraft, clothing for kids, and uniforms for fire fighters.
The Crossword Solver found 17 answers to the ANTIMONY crossword clue. The Crossword Solver finds answers to American-style crosswords, British-style crosswords, general knowledge crosswords and cryptic crossword puzzles. Enter the answer length or the answer pattern to get better results. Click the answer to find similar crossword clues.
Sep 06, 2018· Which machines are suitable for gold mining? Update Cancel. ... 1350, 1400, 1500,1600 is suitable for selection of iron ore, molybdenum ore,lead ore,zinc ore, antimony ore and so on. 850, 900, 1000, 1100, 1200 is suitable for selection of gold ore. ... Answered Jan 8, 2016 · Author has 335 answers and 376.4k answer views.
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How can we analyze antimony (more than 40%) in solid samples? ... interested in the compounds (e.g. antimony in ore) then you could consider XRD as well. If you can dissolve the sample in an acid ...
The quantity of antimony in an ore can be determined by an oxidation-reduction titration with an oxidizing agent. The ore is dissolved in hot, concentrated acid and passed over a reducing agent so that all the antimony is in the form Sb3 (aq).
Nov 04, 2013· The quantity of antimony in an ore can be determined by an oxidation-reduction titration with an oxidizing agent. The ore is dissolved in hot, concentrated acid and passed over a reducing agent so that all the antimony is in the form Sb3 (aq). The Sb3 (aq) is completely oxidized by an aqueous solution of BrO3–(aq). Complete and balance the equation for this reaction in acidic solution.
Antimony is often found in other ores as well, e.g., silver, copper, and lead. The pure element antimony is produced from the ore by roasting it to form the oxide, then reducing the oxide with carbon or iron; often a flux of sodium sulfate or sodium carbonate is used to prevent loss of molten
Jan 27, 2016· Antimony This fact sheet answers the most frequently asked health questions about antimony. For more information, you may call 1-888-422-8737. ... Workers in industries that process it or use antimony ore may be exposed to higher levels. ... Antimony can irritate the skin if it is left on it.
The main ore of antimony. Let's find possible answers to "The main ore of antimony" crossword clue. First of all, we will look for a few extra hints for this entry: The main ore of antimony. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 …
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The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent. A 7.99-g sample of stibnite, an ore of antimony, is dissolved in hot, concentrated HCl(aq) and passed over a reducing agent so that all the antimony is in the form Sb3 (aq).
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