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Topic: Calcium carbide

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Carbide

Acetylene

Gas lighting

Gasohol

Calcium

Alcohol fuel

Bayer process

Sulfuric acid

Alumina

Corrosion

Calcium oxide

Carbonic acid

Citric acid

Titanium

Chemical formula

	Dicyandiamide\|Dicyandiamide Superfine electronic grade\|Ferro silicon\|Calcium Carbide\|Calcium Cyanamide\|Hard Coke\|Glass ...
		They higher its purity is, the easier it conducts, it dissolves in water, turns into acetylene and calcium hydroxide and releases heat.
		Calcium carbide is an important basic material in organic synthesis industry, Acetylene obtanied from calcium carbide is raw material to make ethylene, chloroprene rubber, calcium cyanamide, acetic acd, acetaldehydr, ethylacetate, cyanide acetate, dicyandiamide, acetone, octanol, trichloride ethylene etc. Also used as desulfurizer and dehydrant of steel and for cutting and welding metals.
		Packed in steel drum of 100kg, net each and marked with "calcium carbide avoid fire and water" on the side, Stored in cool, venilated and dry warehouse and kept away from water and moisture.
	www.xingpingchem.com /Calcium-Carbide.htm (196 words)

	NationMaster - Encyclopedia: Calcium carbide
		Calcium carbide is produced in an electric arc furnace loaded with a mixture of lime and coke at about 2000 °C. Calcium carbide is formed: An electric arc furnace is a system that heats the charged material by means of an electric arc.
		Calcium carbide synthesis requires an extremely high temperature, ~2000 °C, which is not practically achievable by traditional combustion, so the reaction is performed in an electric arc furnace with graphite electrodes.
		Calcium is a soft grey alkaline earth metal that is used as a reducing agent in the extraction of thorium, zirconium and uranium.
	www.nationmaster.com /encyclopedia/Calcium-carbide (1229 words)

	Calcium carbide - Encyclopedia, History, Geography and Biography
		Calcium carbide is also used as a fuel in steelmaking to extend the scrap ratio to liquid iron depending on economics.
		Calcium carbide is used in carbide lamps, in which water drips on carbide and the formed acetylene is ignited.
		Calcium carbide synthesis requires an extremely high temperature, ~2000 °C, which is not practically achievable by traditional combustion, so the reaction is performed in an electric arc furnace with graphite electrodes.
	www.arikah.com /encyclopedia/Calcium_carbide (419 words)

	Calcium carbide improves crop yields -DAWN - Business; December 18, 2006
		Calcium carbide is a rich source of the nitrification inhibitor acetylene and the plant hormone ethylene.
		Calcium carbide treatment after one weak of germination was most effective in increasing number of tillers, length of spikes, number of spikelets, total biological yield, straw and grain yield of wheat.
		It is desirable that calcium carbide is formulated for gradually slow release of acetylene and ethylene in soil air.
	www.dawn.com /2006/12/18/ebr4.htm (1248 words)

	A study of high volume replacement of cement by fly ash and calcium carbide residue in concrete
		The purpose of this project is to study the use of high volume of fly ash and calcium carbide residue in concrete by replacing in cement.
		In primary study, it was found that the chemical composition of fly ash and calcium carbide residue were consisted of main oxides for generating the cementitious material.
		Calcium carbide residue was dried by oven and ground to smaller size by hand.
	library.kmitnb.ac.th /projects/ind/CCT/cct0043e.html (422 words)

	Computerized process and apparatus for use with a submerged arc electric furnace to produce metallurgical products - ...
		A calcium carbide lime and carbonaceous reducing agent mixture is prepared and a substantial portion of the finely-divided particles measuring 1/4 inch and finer are removed therefrom, e.g., about 90 percent of the finely-divided particles of lime and about 80 percent of the finely divided particles of carbonaceous reducing agent.
		The quality of the carbide is determined by taking samples of the molten carbide from the furnace and then using gas analyzer means, such as an acetylene generator, to ascertain the cubic feet of acetylene gas producible per pound of carbide.
		The automatic calcium carbide process was continued for a period of 3 months and produced an average of 0.725 lbs.
	www.freepatentsonline.com /4213955.html (9382 words)

	CALCIUM CARBIDE
		Calcium carbide is a rock-like solid, grayish / fl in colour.
		Calcium carbide is a basic inorganic chemical intermediate, mainly used for the manufacture of acetylene.
		The use of calcium carbide for the manufacture of calcium cynamide is practically non-existent in India because calcium cynamide has not found any prominence as a fertilizer material.
	www.nerdatabank.nic.in /calcium.htm (330 words)

	Curbs on calcium carbide dumping
		In a preliminary findings on calcium carbide imports, the designated authority, anti-dumping cell, last week imposed provisional duty of Rs 1,047 per tonne for imports from China and Rs 1,460 for shipments from Romania.
		Calcium carbide importers in India have charged manufacturers with forming a cartel to raise prices of the chemicalby 30 per cent.
		Calcium carbide supply had improved only after imports were brought under open general licence, they added.
	www.financialexpress.com /fe/daily/19980904/24755164.html (558 words)

	Abstract of CEH report Calcium Carbide (Site not responding. Last check: 2007-10-23)
		Calcium carbide is an inorganic compound used in the generation of acetylene and production of calcium cyanamide (a nitrogen fertilizer) and in the iron (foundry) and steel industries as a desulfurization reagent in the production of ductile iron and steel and as a slag modifier/conditioner (reducer) in steel production.
		In 2004, estimated demand for calcium carbide in the United States, Western Europe and Japan was 737 thousand metric tons, a 12% decrease from the 2000 level.
		Overall consumption of calcium carbide in Western Europe is expected to decline by 1.6% per year during 2004-2009.
	ceh.sric.sri.com /CEH/Public/Reports/724.5000/Abstract.html (335 words)

	Carbide Balls
		Carbide lamps, an important source of portable subterranean illumination for mining and caving, and in the past for lighthouse lamps, work throughon-demand production and combustion of acetylene by the metered addition ofwater to calcium carbide.
		Gas lighting, using acetylene gas generated from carbide, was used insome homes before the incandescent lamp came into widespread use.It was also the main source of lighting on bicycles and carriages before thewidespread availability of electric lamps and batteries.
		Tungsten carbide is a metallic alloy that is commonly referred to as carbide.
	www.altvetmed.com /face/8402-carbide-balls.html (483 words)

	DSCL: Our Business
		Calcium carbide (CaC2) is manufactured by mixture of lime and carbon in electric furnace.
		The company has enhanced its manufacturing capacity of Calcium carbide from 66,500 TPA to 1, 08,500 TPA by commissioning its state of the art 30 MVA electric furnace in July 2005.
		The demand growth in Calcium carbide is driven by segments like DS compounds due to shift to high purity steel production with increase in production of steel across the country.
	www.dscl.com /Business_Carbide.aspx?PID=35 (180 words)

	Calcium carbide (Site not responding. Last check: 2007-10-23)
		Calcium carbide is produced by electric discharge through a mixture of lime and carbon at high temperature.
		This reaction is the basis of the industrial manufacture of dissolved acetylene (DA), and the only use for calcium carbide nowadays.
		Carbide lamps are still used by many spelunkers exploring caves and other underground areas.
	www.guideofpills.com /Calcium_carbide.html (292 words)

	Calcium Carbide (Site not responding. Last check: 2007-10-23)
		Willson and his employees were convinced they had successfully produced metallic calcium, they were wrong, they had in fact produced calcium carbide which when immersed in water produces acetylene gas.
		Calcium carbide -- known by the chemical formula CaC2 -- is a compound composed of the elements calcium and carbon.
		The brittle gray calcium carbide, formed from mixing coal tar and lime, released acetylene gas when placed in water.
	www.ray-vin.com /tech/carbide.htm (481 words)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal (Site not responding. Last check: 2007-10-23)
		Calcium carbide is a chemical compound with the chemical formula Ca2
		It is used mainly as a convenient source of acetylene gas.
		Calcium carbide is produced in an electric arc furnace loaded with a mixture of lime and coke at about 2000 Â°C. Calcium carbide is formed:
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=calcium_carbide (407 words)

	Hortic. Bras. vol.19 no.3; Resumen: S0102-05362001000300021 (Site not responding. Last check: 2007-10-23)
		To evaluate the effect of low temperature and calcium carbide on the emergence of yam tuber-seeds, Da Costa cv., an experiment was carried out from October, 1998 to March, 1999, in Areia, Brazil.
		To evaluate the efficiency of the calcium carbide on breaking dormancy of tubers, the same were conditioned in fl polyethylene bags with calcium carbide in the proportion of 60 g/kg of roots and stored under conditions of open shed (temperature of 27
		As control there were used tubers conditioned in bags of fl polyethylene without calcium carbide and stored in open shed.
	www.scielo.br /scielo.php?script=sci_abstract&pid=S0102-05362001000300021&lng=es&nrm=iso (223 words)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal (Site not responding. Last check: 2007-10-23)
		For example, the compound silicon carbide is mostly covalent; it has similar structure to diamond.
		Under conditions of standard temperature and pressure, metal carbides react strongly with water to form metal oxides or hydroxides and flammable acetylene gas, e.g.:
		Gas lighting, using acetylene gas generated from carbide, was used in some homes before the incandescent lamp came into widespread use.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=carbide (334 words)

	What is calcium carbide? - SciForums.com
		But clearly anyone who is attempting this problem must know what calcium carbide is...and there's no way to figure out what it actually is...
		By definition, carbide is a "binary" compound of carbon.
		But your stoichiometry problem is not dealing with this and has not presented any parameters of extraneous ionic elements that would change this basic molecular formula of calcium carbide.
	www.sciforums.com /What-is-calcium-carbide-t-58152.html (706 words)

	Calcium-Carbide.com :: Home :: (Site not responding. Last check: 2007-10-23)
		Your calcium carbide will be shipped in accordance with all applicable USPS regulations.
		Additionally, a calcium carbide Safety Information Sheet will be provided with each order.
		Purchasing this item is restricted to individuals that are at least 18 years of age and have the knowledge to store, handle and dispose of calcium carbide properly.
	www.calcium-carbide.com (279 words)

	calcium carbide bomb (Site not responding. Last check: 2007-10-23)
		We have researched the calcium carbide bomb subject day and night and can guarantee that the people have the best.
		We have made it easy for you and of course this company stands behind their calcium carbide bomb with total satisfaction guarantees.
		The calcium carbide bomb links on the left hand side of the page will take you directly to the specific item you need so feel free to look around.
	www.calciumtank.com /k2r-calcium-reactor/calcium-carbide-bomb.html (189 words)

	Influence of Ethrel and calcium carbide on respiration rate, ethylene evolution, electrolyte leakage and firmness of ... (Site not responding. Last check: 2007-10-23)
		Influence of Ethrel and calcium carbide on respiration rate, ethylene evolution, electrolyte leakage and firmness of 'Dashehari' mango (Mangifera indica)
		or calcium carbide at 25 g/10 kg and subsequently stored at room temperature (30-36 degrees C; 10-55% RH), or in a cold store (25-28 degrees + 85-90% RH, or 14-16 degrees + 70-80% RH).
		Ethrel at 600 ppm or calcium carbide treatment gave more electrolyte leakage from the pulp resulting in poor textural properties during ripening.
	www.trophort.com /information/data/B01/S54/PAL98INF2010786.html (178 words)

	Oxygen Acetylene
		Thecalcium carbonate is first converted into calcium oxide and the coal into coke, then the two are reacted with each other to form calcium carbide and carbon monoxide :
		CaO + 3C → CaC 2 + CO Calcium carbide and water are then reacted by any of several methods to produce acetylene and calcium hydroxide.
		Acetylene is also used in the acetylene lamp or carbide lamp, formerlyfound in mines (not to be confused with the (Humphry) Davy lamp), and on vintage cars ; it is still sometimes used by cavers.
	www.altvetmed.com /face/44208-oxygen-acetylene.html (539 words)

	CEDIE. Steel production. Calcium Carbide
		The use of calcium carbide in the manufacturing of steel has increased considerably in the past few years.
		Calcium carbide is a strong desoxidiser and efficiently reduces the levels of oxides such as FeO and MnO.
		The combination of calcium carbide with other desoxidisers, for example aluminium, generates slag with the following properties:
	www.cedie.com /english/acerias_e/carburos_e.htm (61 words)

	calcium carbide cannon
		When we developed this web presence we knew that we would be thrilled in providing you the most respected websites for calcium carbide cannon, we believe we have achieved that.
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	calcium.clearly-healthy.com /calcium-carbide-cannon (396 words)

	Megahydrate - calcium carbide hydrate
		of acetylene from calcium carbide, and occurs as...
		Carbide sludge, generator slurry, lime slurry, carbide lime, lime sludge, lime hydrate, calcium.
		CALCIUM BROMIDE, DIHYDRATECALCIUM BROMIDE, N-HYDRATECALCIUM CARBIDE, ANHYDROUSCALCIUM CARBONATECALCIUM...
	www.megahydrate.net /hydration/calcium-carbide-hydrate.html (356 words)

	totse.com \| Calcium Carbide
		Calcium Carbide is a substance that reacts with water to create acetylene gas, which is extreamly flamible.
		Crush the charcoal (a hammer works great and is satisfying) and place it in the lime.
		This is your Calcium Carbide and will fizz when it comes into contact with water.
	www.totse.com /en/bad_ideas/ka_fucking_boom/calciumcarbide191627.html (385 words)

	Calcium Carbide manufacturers service industry companies distributors suppliers dealers buyers export import
		Calcium Carbide manufacturers service industry companies distributors suppliers dealers buyers export import.
		A wide variety of manufacturers, distributors and service companies are featured in our extensive vertical directory to allow ease sourcing and research for Calcium Carbide.
		A grayish-fl crystalline compound, CaC 2, obtained by heating pulverized limestone or quicklime with carbon and used to.
	www.chemicalindustryinfo.com /browse-calcium_carbide-122-1.html (127 words)

	Calcium Carbide Bomb by The Jolly Roger This is EXTREMELY DANGEROUS. Exercise extreme caut (Site not responding. Last check: 2007-10-23)
		Calcium Carbide Bomb by The Jolly Roger This is EXTREMELY DANGEROUS.
		This is the stuff that is used in carbide lamps and can be found at nearly any hardware store.
		The carbide will react with the water to produce acetylene carbonate which is similar to the gas used in cutting torches.
	www.skepticfiles.org /new/046doc.htm (123 words)

	buy calcium carbide
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