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Topic: Calcium sulfide

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	Minerals by Name (complete list)
		BARATOVITE (Potassium Lithium Calcium Titanium Zirconium Silicate Fluoride)
		FEDORITE (Hydrated Sodium Potassium Calcium Silicate Fluoride Chloride Hydroxide)
		YUKSPORITE (Hydrated Potassium Barium Sodium Calcium Titanium Silicate Fluoride Hydroxide)
	mineral.galleries.com /minerals/byname.htm (417 words)

	Calcium - Water Contaminates - Aquapure Filters
		Calcium is derived from nearly all rock, but the greatest concentrations come from limestone and gypsum.
		Calcium, as with all hardness, can be removed with a simple sodium form cation exchanger (softener).
		Calcium can also be removed with the hydrogen form cation exchanger portion of a deionizer system.
	www.aquapurefilters.com /contaminates/115/calcium.html (0 words)

	Glossary
		galena: native lead sulfide, PbS, or lead or silver ore, or the slag remaining after refining lead.
		(See sulphuret.) Hepar sulphuris (liver of sulphur) was a synonym either for potassa sulphurata (a mixture of various compounds of potassium and sulfur made by fusing potassium carbonate and sulfur) [Cavendish, Priestley, Stahl] or, in homeopathic contexts, for calcium sulfide, CaS.
		One Kelvin (denoted simply K or sometimes in older sources °K) is the same size as a Celsius degree, so the normal freezing point of water is 273.15 K and the normal boiling point is 373.15 K. (See Celsius scale, Fahrenheit scale, Rankine scale, Réaumur scale.) [Kelvin]
	web.lemoyne.edu /~giunta/archemg.html (0 words)

	General Chemistry Online: FAQ: Introduction to inorganic chemistry: How can I prepare a luminescent alkaline earth ...
		The residue is supposed to be luminescent calcium sulfide.
		According to the CRC Handbook of Chemistry and Physics, the solubility of calcium sulfide is only 21 mg per 100 mL for cold water (15°C) and 48 mg per 100 mL for hot water (60°C).
		Calcium sulfate (and calcium sulfate dihydrate) have solubilities about 10 times greater than that of calcium sulfide, so any unreacted calcium sulfate is going to heavily contaminate your product.
	antoine.frostburg.edu /chem/senese/101/inorganic/faq/alkaline-earth-sulfide.shtml (468 words)

	Oilfield Glossary: Term 'sulfide'
		Sulfides can be generated from soluble iron sulfide minerals or from sulfate-reducing bacteria.
		The term "active sulfide" is used to denote compounds that revert to H
		S gas when acidified with 2-molar citric-acid solution, as opposed to inert sulfides, which are stable.
	www.glossary.oilfield.slb.com /Display.cfm?Term=sulfide (210 words)

	Calcium Sulfide
		Particle Size: Calcium sulfide is typically produced as a powder at –200 mesh.
		MSDS: The MSDS for calcium sulfide is provided with the material.
		This is also used as a component of ternary (or higher) sulfides manufactured by Lorad.
	www.profitgate.net /~lorad/sulf/calcium-sulfide.html (93 words)

	Calcium Sulfide
		Particle Size: Calcium sulfide is typically produced as a powder at –200 mesh.
		MSDS: The MSDS for calcium sulfide is provided with the material.
		This is also used as a component of ternary (or higher) sulfides manufactured by Lorad.
	www.loradchemical.com /sulf/calcium-sulfide.html (93 words)

	Calcium (Site not responding. Last check: )
		Calcium is silvery in appearance, but when exposed to the air it quickly develops a white coating of magnesium oxide.
		In nature calcium it is often found dissolved in water and is one ion responsible for the "hardness" of water.
		Calcium has no tendency to form covalent compounds and all calcium compounds are ionic in nature.
	www.uncp.edu /home/mcclurem/ptable/ca.htm (311 words)

	Formula For Calcium Sulfide On GlobalSpec
		Another example is calcium sulfide, formed by a cation of the metal calcium (Ca2+) and an anion of...
		Calcium oxide from marble, ≥97.0% (acidimetric), lumps CaO 12076.
		The brittle failure of tensile loaded steel in the presence of hydrogen sulfide is termed sulfide stress cracking...
	sensors-transducers.globalspec.com /Industrial-Directory/formula_for_calcium_sulfide (1347 words)

	CRCPress Periodic Table Online: Cadmium
		Calcium is a metallic element, fifth in abundance in the earth’s crust, of which it forms more than 3%.
		Calcium from limestone is an important element in Portland cement.
		Calcium sulfide is phosphorescent after being exposed to light.
	chemnetbase.com /periodic_table/elements/calcium.htm (314 words)

	Sulfur recovery process - Patent 4722832
		Here the loaded solution is contacted with hydrogen sulfide under conditions to react the hydrogen sulfide with the calcium polysulfide in the loaded solution to produce elemental sulfur which precipitates from solution and calcium hydrosulfide which remains in solution.
		The remaining aqueous solution of calcium monosulfide is recycled to the extraction zone for the use in the leaching operation.
		The calcium hydrosulfide solution may be heated prior to passing it into the extraction zone or heating of the leaching solution along with the ore may take place in the extraction zone.
	www.freepatentsonline.com /4722832.html (5959 words)

	Glenn R. Ohlhauser, C.A.: Admin. Proc. Rel. No. 34-47256 / January 27, 2003
		Smart produced calcium sulfide for use in the MBS process pursuant to an agreement entered into in March 1997.
		Moreover, throughout this period, Solucorp continued to advance funds to Smart toward the purchase of calcium sulfide even though Smart was delinquent in paying its license fees.
		First, the possibility of offsets was contingent on continued demand for calcium sulfide, which, in turn, was contingent on securing remediation jobs using MBS.
	www.sec.gov /litigation/admin/34-47256.htm (3307 words)

	[No title]
		Samples of the oxidized spent sorbents that did not pass the EPA procedure were reacted with water and carbon dioxide to convert the residual calcium sulfide to calcium carbonate.
		The solid wastes, produced from the reactions of calcium-based sorbents with hydrogen sulfide in the fuel gas, contain calcium sulfide which is unstable and has the tendency to decompose when it contacts moisture in the air, releasing hydrogen sulfide to the atmosphere.
		When the calcium sulfide content of such solid waste materials are above 4.5%, they can be reacted with water and carbon dioxide in the temperature range of 60 to 120C at 5 bar to remove the residual sulfide to below 0.5%, making them suitable for landfill disposal.
	www.icci.org /96final/abbasian.htm (1172 words)

	Projection type green cathode ray tube, method for manufacturing phosphor screen for the same, and projection video ...
		According to the method for manufacturing the phosphor screen, the cerium-activated calcium sulfide phosphor is precipitated in a 0.3 to 5% aqueous solution of water glass based on weight.
		Cerium-activated calcium sulfide phosphor is known as a phosphor which emits green light.
		Because calcium sulfide is relatively chemically unstable in air and in water, and therefore, the phosphor film is gelled in a sensitizer slurry which is used in the conventional method for preparing the phosphor screen of the display type color CRT.
	www.freepatentsonline.com /4518985.html (4062 words)

	PSR Discoveries:Hot Idea: Enstatite Meteorites
		This disproved a hypothesis that the calcium sulfide in the rock formed at a very high temperature in the gas-dust cloud from which the planets formed and survived melting in igneous enstatite meteorites.
		One of the exotic sulfide minerals in enstatite chondrites and aubrites is oldhamite, calcium sulfide (CaS).
		Because the metal and sulfides were distributed in small grains before melting, metallic and sulfide melts must have moved readily inside the sample.
	www.psrd.hawaii.edu /Dec99/indarch.html (2183 words)

	CH 201 Exam 1 key
		b) Calcium is a non-metal that forms a 4+ cation.
		Its symbol is C. c) Calcium is a non-metal that forms a 2- anion.
		b) Calcium and nitrate are spectator ions in this reaction.
	www.chemistry.oregonstate.edu /courses/ch201-5/ch201/Exam1key.htm (559 words)

	Calcium Sulfide, Calcium Sulfide Manufacturers Suppliers Exporters of Calcium Sulfide
		Manufacturer and exporter of solid calcium chloride, ammonium chloride BP, fused calcium chloride, zinc chloride, sodium acetate crystals, mono ammonium phosphate, tri sodium phosphate, di-potassium phosphate, ferrous sulphide, monohydrate zinc sulphate.
		Exporters of calcium chloride, calcium nitrate, calcium fluoride, magnesium nitrate and sodium thiosulphate & importers of hydrogen peroxide, potassium bicarbonate and phosphonic acid and also selling agriculture chemicals & textile chemicals.
		Manufacturer and exporter of industrial chemicals, electrolytes, chemical intermediates and aroma chemicals including calcium chloride dihydrate, calcium chloride hexahydrate, zinc sulphate, para di chloro benzene, para nitro aniline, copper sulphate.
	www.indianchemicalportal.com /calcium-sulfide.html (675 words)

	Welcome to Phenix Limited
		The coal, with limestone added as source of calcium for sulfur capture, is pulverized and introduced to the burner along with a limited amount of hot combustion air.
		In the presence of calcium, the sulfur reacts to form calcium sulfide (CaS, a solid 'non-gaseous' particle).
		The high combustion temperatures melt together the coal ash (largely silica and alumna) and calcium sulfide solids to form an inert slag that drains from the bottom of the boiler.
	phenix-limited.com /technology.html (290 words)

	British Eighteenth-Century Chemical Terms - Part 1 (A-H)
		Since "lye" had several meanings, this phrase was often used to refer specifically to the three strong mineral (NaOH, KOH, and NH OH) bases and usually meant potassium hydroxide (KOH).
		Probably antimony oxysulfate (Sb Prepared by fusion of antimony sulfide, antimony, and an oxide of antimony.
		Sometimes the oxide was confused with carbonate as the "earth" of gypsum.
	dbhs.wvusd.k12.ca.us /webdocs/Chem-History/Obsolete-Chem-Terms1.html (0 words)

	Calcium Sulfide (Industrial Grade) (Splendid Profit International Limited & Yichang Hongyang Chemical CO.,Ltd,Hong Kong)
		Calcium Sulfide (Industrial Grade) (Splendid Profit International Limited & Yichang Hongyang Chemical CO.,Ltd,Hong Kong)
		Performance: industrial grade calcium sulfide is a gray power with a slight
		See more sulfide, calcium sulfide, cas products from this supplier.
	spilat.en.alibaba.com /product/50330041/51477425/Chemical_Raw_Materials_Calcium_Series/Calcium_Sulfide_Industrial_Grade_.html (0 words)

	Lorad Chemical Corporation
		The Lorad Chemical Corporation is a leader in the development and manufacture of complex and demanding inorganic materials for advanced technology applications.
		We specialize in Custom Synthesis and the Development of innovative and cost-effective routes for the batch synthesis of complex inorganic oxides, sulfides, fluorides and high purity salts.
		Lorad is the leading manufacturer of high purity lithium sulfide in the world.
	www.loradchemical.com (186 words)

	Caveman to Chemist Projects: Chloralkali
		The calcium sulfide was reacted with carbon dioxide (from the original process) and water:
		The hydrogen sulfide was then used as a feedstock for the lead chamber, which produced much needed sulfuric acid.
		But calcium chloride is not noxious as the waste product of the Leblanc process were, and so the pollution problem was minimal.
	cavemanchemistry.com /oldcave/projects/chloralkali (2767 words)

	Calcium sulfide (Site not responding. Last check: )
		what is the origin of name of the element calcium / element calcium found / source of calcium / calcium carbonate formula / lead content of calcium supplements / calcium chloride food price / mining of chalk calcium carbonate / calcium element history /
		The table.but he was tired of Raphael.she might have stepped out of the stable of.
		calcium sulfide It was very well for me to say that this would be Fate.
	www.homestead.com /buffalosaintspeeweeminor/calcium-sulfide (488 words)

	barium sulfide (Site not responding. Last check: )
		Sachtleben is a leading manufacturer of top-quality pigments, extenders and functional additives based on titanium dioxide, zinc sulfide and synthetic barium sulfate.
		A synopsis, use, consumption patterns, chemical and physical properties, environmental impact of the elements of the periodic table.
		In addition to acting in a traditional sales and marketing role, we are able to provide extensive technical support.
	www.neis.com /chemnames/B/barium_sulfide.asp (366 words)

	clayart - thread 'calcium sulfide' (Site not responding. Last check: )
		Calcium sulfide is used as a winter dormant plant spray to clean up fungus
		not sure if it is sulfide or sulfate.
		For both you and Randall, here's a possibilty with the calcium sulfide:
	www.potters.org /subject20736.htm (304 words)

	Safety & Health Services - Chemical Compatibilty
		HF reacts with the calcium in the body to form calcium fluoride (CaF2), an insoluble salt.
		The reaction may reduce the level of calcium ions in the body to a dangerous level very rapidly causing death.
		Hydrogen iodide, Hydrogen peroxide, Hydrogen selenide, Hydrogen sulfide, Hydrogen telluride,
	www.bnl.gov /esh/shsd/Programs/Program_Area_Chemicals_Compatibility.asp (4474 words)

	Chemistry : Periodic Table : calcium : compound data [calcium (II) sulphide]
		For each compound, and where possible, a formal oxidation number for each element is given, but the usefulness of this number is limited, especially so for p-block elements in particular.
		Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only.
		Calcium sulfide can be made through the reaction of calcium metal with elemental sulfur.
	www.webelements.com /webelements/compounds/text/Ca/Ca1S1-20548543.html (333 words)

	Sell Calcium Sulfide (Industrial Grade) (Splendid Profit International Limited & Yichang Hongyang Chemical CO.,Ltd,Hong ...
		home selling leads Sell Calcium Sulfide (Industrial Grade)
		Performance: industrial grade calcium sulfide is a gray power with a slight rotten-egg odor and its density is 2.18.
		It can be dissolved in acid and hydrolyzed in water.
	spilat.en.alibaba.com /offerdetail/55386976/Sell_Calcium_Sulfide_Industrial_Grade_.html (0 words)

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