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Topic: Phosphorus pentachloride

Related Topics

Phosphorus trichloride

Chloride

Hydrogen chloride

Thionyl chloride

Aluminum chloride

Copper(II) chloride

Copper(I) chloride

Hydrolysis reaction

Phosphorus

Fuel

Covalent bond

Phenyl

Oxidizing agent

Methane

Chemical bond

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	Phosphorus - LoveToKnow 1911 (Site not responding. Last check: 2007-11-06)
		The crude phosphorus is purified by melting under water and then filtering through animal fl and afterwards through chamois leather, or by treating it, when molten, with chromic acid or a mixture of potassium bichromate and sulphuric acid; this causes the impurities to rise to the surface as a scum which can be skimmed off.
		Phosphorus trichloride or phosphorous chloride, PC13, discovered by Gay-Lussac and Thenard in 1808, is obtained by passing a slow current of chlorine over heated red phosphorus or through a solution of ordinary phosphorus in carbon disulphide (purifying in the latter case by fractional distillation).
		The phosphorus used in the British pharma copoeia is obtained from calcium phosphate, and is a waxlike non-metallic substance soluble in oils and luminous in the dark.
	www.1911encyclopedia.org /Phosphorus (6852 words)

	Phosphorus pentachloride (Site not responding. Last check: 2007-11-06)
		Phosphorus pentachloride is a colourless to pale yellow fine-grained powder with a pungent odour.
		Phosphorus pentachloride reacts spontaneoulsly with moisture to form hydrochloric acid (cloud) and phosphoric acid.
		Phosphorus pentachloride is used mainly as a gentle chlorinating agent in the manufacture of pharmaceuticals and dyes.
	www.thermphos.com /pages/penta_chlor.htm (96 words)

	Phosphorus pentachloride
		Phosphorus pentachloride is not as widely used in industrial chemistry as phosphorus trichloride.
		Phosphorus pentachloride is manufactured from the trichloride by reaction with chlorine gas in carbon tetrachlorideas a solvent.
		Phosphorus pentachloride can be used in the synthesis of G-type nerve agents including sarin and cyclosarin.
	www.cbwinfo.com /Chemical/Precursors/p36.html (262 words)

	Phosphorus
		Phosphorus is an important agricultural fertilizer, an essential element in metabolism and the transfer of biological energy, a component of matches, an ingredient in pyrotechnic applications, and besides of considerable scientific interest.
		Phosphorus is in column VA of the periodic table, between nitrogen and arsenic, neither of which it resembles.
		Phosphorus pentoxide is hydrolyzed in water to form one of several phosphoric acids.
	www.du.edu /~jcalvert/phys/phosphor.htm (4879 words)

	Documentation for Immediately Dangerous to Life or Health Concentrations (IDLHs) - 10026138 (Site not responding. Last check: 2007-11-06)
		(24 ppm) is chosen as the IDLH for phosphorus pentachloride.
		Other data: The vapors of phosphorus pentachloride decompose in the presence of moisture with the subsequent liberation of hydrochloric and phosphoric acids [Henderson and Haggard 1943].
		Basis for revised IDLH: The revised IDLH for phosphorus pentachloride is 70 mg/m
	www.cdc.gov /niosh/idlh/10026138.html (230 words)

	phosphorus
		White phosphorus has two modifications: alpha and beta with a transition temperature at -3.8 deg C. Never found free in nature, it is widely distributed in combination with minerals.
		White phosphorus should be kept under water, as it is dangerously reactive in air, and it should be handled with forceps, as contact with the skin may cause severe burns.
		Phosphorus (white or yellow) is a waste chemical stream constituent which may be subjected to ultimate disposal by controlled incineration.
	www.speclab.com /elements/phosphorus.htm (1487 words)

	P = Phosphorus
		Phosphorus, like nitrogen is closely concerned with the vital growth process in plants as it is a constituent of nucleic acid and nuclei in which this occurs are essential parts of all living cells.
		Phosphorus is also of importance in seeds and in connection with the metabolism of fats.
		Compounds of phosphorus are concerned with the process of respiration and with the efficient functioning and utilization of nitrogen.
	www.luminet.net /~wenonah/hydro/p.htm (663 words)

	Phosphorus trichloride and phosphorus oxychloride (HSG 35, 1989)
		Fate of phosphorus trichloride and phosphorus oxychloride 2.3.
		Impurities that may be present in small amounts (<0.1%) include: phosphorus trichloride, phosphorus pentachloride, phosphoric anhydride, and the arsenic and bromine analogues of phosphorus oxychloride.
		Phosphorus oxychloride is produced by oxidizing phosphorus trichloride or by reacting phosphorus pentachloride with phosphorus pentoxide.
	www.inchem.org /documents/hsg/hsg/hsg035.htm (4311 words)

	Phosphorus pentachloride - Wikipedia, the free encyclopedia
		Phosphorus pentachloride is the chemical compound with the formula PCl
		The structures for the phosphorus chlorides are invariably consistent with VSEPR theory.
		, the pentachloride replaces allylic and benzylic CH bonds and is especially renown for the conversion of C=O groups to CCl
	en.wikipedia.org /wiki/Phosphorus_pentachloride (562 words)

	Sciencemadness Discussion Board - Powered by XMB
		There is no common source of phosphorus pentachloride that I'm aware of.
		It should be relatively simple to prepare phosphorus pentachloride from phosphorus trichloride and dry chlorine gas (dry by passing over concentrated sulfuric acid).
		Phosphorus Pentachloride is one of the byproducts when Chlorinating Phosphorus to make PCl3.
	www.sciencemadness.org /talk/viewthread.php?tid=463 (262 words)

	Twin Lake Chemical - Phosphorus pentachloride and production equipment info
		Twin Lake Chemical produces phosphorus pentachloride by reacting phosphorus trichloride with chlorine.
		This chemical is used in the production of materials by the agricultural industry, and is also a key ingredient in specialized fire retardants.
		Phosphorus pentachloride is most typically packaged in five gallon pails that are filled with a net weight of 50 pounds.
	www.twinlakechemical.com /pcl5.html (126 words)

	Kinetics (Site not responding. Last check: 2007-11-06)
		C), and will be accelerated by actinic llight that causes photedissociation of chlorine molecules into chlorine radicals, and by the presence of phosphorus compounds or peroxides which enhance free radical formation.
		The side-chain chlorinated products, benxylchloride, benzalchloride and benzotrichloride have originally been prepared from other sources that toluene: benzalchloride was prepared by Cahours (1848) from benzaldehyde by reaction with phosphorus pentachloride; Cannizzaro (1853) converted benzyl alcohol with hydrogen chloride to benzyl chloride; and Schischkoff and Rosing (1858) treated benzoyl chloride with phosphorus pentachloride which gave benzotrichloride.
		Benzylchloride can be prepared by the actionof sulfurylchloride on toluene in the presence of peroxides, by the reaction of benzyl alcohol with hydrogen chloride and with zinc chloride as a catalyst, by the action of phosphorus trichloride or pentachloride on benzyl alcohol, or by chloromethylation of benzene.
	www.faizkaskar.8k.com /Kinetics.html (1225 words)

	(13) Weights Formed by Decomposition
		gives two moles of phosphorus and 5 moles of chlorine.
		The mole relationship and the formula weights can be used to figure out the weight relationships.
		4.24 g of phosphorus pentachloride yields 0.630 g of phosphorus and 3.61 g of chlorine
	dl.clackamas.cc.or.us /ch104-10/(13).htm (439 words)

	Sarin (Bertil Jonell; Carey Sublette; Roger Fleming; Yogi Shan) (Site not responding. Last check: 2007-11-06)
		The obsolete five-step DMHP Process begins with an esterification of phosphorus trichloride, conversion to the intermediate methyl phosphonic dichloride ("dichlor" to those in the know), and then final conversion to sarin/GB.
		> Aum took the trouble to generate phosphorus > pentachloride by mixing chlorine with > phosphorus trichloride, instead of > a commonly used chloric chemical, such as > thionyl chloride, or less > commonly used phosphorus pentachloride.
		In studying this area, it is important to remember the commanding lead in technology (chemistry, as well as industry, conventional armaments, and rockets) possessed by the Germans.
	yarchive.net /mil/sarin.html (4548 words)

	Environmental Protection Agency
		Acute exposure to phosphorus pentachloride may result in irritation and burning of the skin, eyes, and mucous membranes.
		Acute exposure to phosphorus pentachloride may require decontamination and life support for the victims.
		Emergency personnel should avoid self-exposure to phosphorus pentachloride.
	yosemite.epa.gov /oswer/CeppoEHS.nsf/firstaid/10026-13-8?OpenDocument (468 words)

	Twin Lake Chemical - Acid chlorides made with phosgene and/or thionyl chloride
		We have been in business for over 25 years producing various organic and inorganic chemical intermediates.
		We specialize in organic acid chlorides, and we can manufacture chemicals utilizing phosgene, thionyl chloride, and phosphorus trichloride.
		We are also one of the world's leading producers of phosphorus pentachloride.
	www.twinlakechemical.com (203 words)

	Chemistry : Periodic Table : phosphorus : compound data [phosphorus (V) chloride]
		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.
		Geometry of phosphorus: mixed 4-, 6-coordinate: tetrahedral and octahedral
	www.webelements.com /webelements/compounds/text/P/Cl5P1-10026138.html (351 words)

	PHOSPHORUS PENTACHLORIDE (ICSC)
		FUMING WHITE TO YELLOW CRYSTALS, WITH PUNGENT ODOUR.
		The substance decomposes on heating producing toxic and corrosive fumes including hydrogen chloride and phosphorus oxides.
		Reacts violently with water or moisture to form phosphoric acid and hydrogen chloride.
	www.inchem.org /documents/icsc/icsc/eics0544.htm (385 words)

	Phosphorus Pentachloride, Phosphorus Pentachloride Manufacturers Suppliers Exporters of Phosphorus Pentachloride
		Phosphorus Pentachloride, Phosphorus Pentachloride Manufacturers Suppliers Exporters of Phosphorus Pentachloride
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		» Chemicals Suppliers » Halogenated Compounds » Phosphorus Pentachloride
	www.indianchemicalportal.com /phosphorus-pentachloride.html (91 words)

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