
	Where results make sense

Topic: Ammonium chloroplatinate

Related Topics

ammonium chloride

ammonium nitrate

ammonium perchlorate

ammonium hydroxide

ammonium sulfate

ammonium bicarbonate

ammonium salts

ammonium carbonate

ammonium chloroplatinate

ammonium phosphatide

ammonium alginate

Ammonium aluminum sulfate

In the News (Tue 17 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	IngentaConnect Preparation of Ammonium Chloroplatinate by a Precipitation Stripp...
		IngentaConnect Preparation of Ammonium Chloroplatinate by a Precipitation Stripp...
		Preparation of Ammonium Chloroplatinate by a Precipitation Stripping of Pt(IV)-Loaded Alamine 336 or TBP
		The possibility of preparing ammonium chloroplatinate powders by precipitation stripping from Pt-loaded Alamine 336 or TBP was investigated experimentally.
	www.ingentaconnect.com /content/tmsasm/mmtb/1999/00000030/00000002/art00004 (0 words)

	Large-Scale Methamphetamine Manufacture from P2P - [www.rhodium.ws]
		Ammonium chloroplatinate is a convenient form in which to store catalyst, as platinum dioxide catalyst can be extremely pyrophorric (this stuff explodes!).
		Add 5g of ammonium chloroplatinate chunks to the bed and grind until all chunks are thoroughly blended into a homogenous yellow powder.
		Industrial grade ammonium chloride is normally mixed with a little calcium chloride to keep it from clumping up and hardening and is called "treated" ammonium chloride.
	www.erowid.org /archive/rhodium/chemistry/meth.louisfreeh.html (0 words)

	Palladium/Platinum Catalyst Preparation FAQ
		Place 3.0 g of ammonium chloroplatinate and 30 g of sodium nitrate (AnalaR) (Note 4) in a Pyrex beaker or porcelain dish and heat gently at first until the evolution of gas slackens and then more strongly until a temperature of 300 °C is reached.
		Ammonium chloroplatinate is not hygroscopic and is therefore weighted more easily than chloroplatinic acid.
		By the new procedure a given weight of ammonium chloroplatinate is well mixed with ten times its weight of powdered sodium nitrate, and the mixture is heated gradually to the fusion point.
	www.erowid.org /archive/rhodium/chemistry/pd-catalyst.faq.html (0 words)

	Colutron ion source charge preparation data base
		Ammonium chloride is added to the dried osmium dioxide, the temperature is slowly increased to 900° C, and this temperature is held for three hours or until the reduction appears complete.
		Use of ammonium hydroxide and nitric acid should be avoided in the initial phases of the procedure since ammonia will complex copper and nickel, thus preventing their removal in the hydroxide precipitation, and nitric acid interferes with the hydrogen sulfide precipitation.
		Washing the precipitate with 5% ammonium hydroxide and decanting is repeated until the supernatant is practically colorless, which indicates that nearly all of the nickel and copper have been removed as the soluble ammonia complexes.
	www.colutron.com /products/chargeprep.html (14380 words)

	Top Literature - Chloroplatinic acid (Site not responding. Last check: )
		Also known as hexachlorplatinic acid or chloroplatinic acid, is one of the most readily available soluble compounds of platinum, but it is also unusual in that it is rarely obtained in a highly pure state.
		Chloroplatinic acid was popularlized for the determination of potassium.
		Chloroplatinic acid is produced by dissolving platinum metal sponge in a 1:4 (v:v) solution of nitric acid and hydrochloric acid called aqua regia.
	encyclopedia.topliterature.com /?title=Chloroplatinic_acid (597 words)

	Dihydrogen hexachloroplatinate (IV) hexahydrate - Wikipedia, the free encyclopedia
		Chloroplatinic acid was popularlized for the determination of potassium.
		Chloroplatinic acid is produced by dissolving platinum metal sponge in a 1:3 (v:v) solution of nitric acid and hydrochloric acid called aqua regia.(1) This reaction produces a mixture of chloroplatinous acid (H
		The remaining chloroplatinous acid is then oxidized to choroplatinic acid by saturating a solution with chlorine and heating to remove any excess.
	en.wikipedia.org /wiki/Chloroplatinic_acid (748 words)

	Adams' catalyst - Encyclopedia, History, Geography and Biography
		Adams' catalyst is prepared from chloroplatinic acid H
		Platinum can be recovered from spent catalyst by conversion to ammonium chloroplatinate using aqua regia followed by ammonia.
		It has shown to be valuable for hydrogenation and hydrogenolysis, dehydrogenation, and oxidation reactions.
	www.arikah.com /encyclopedia/Adams%27_catalyst (377 words)

	Adams' catalyst - Wikipedia, the free encyclopedia
		Adams' catalyst is prepared from chloroplatinic acid H
		Platinum can be recovered from spent catalyst by conversion to ammonium chloroplatinate using aqua regia followed by ammonia.
		It has shown to be valuable for hydrogenation and hydrogenolysis, dehydrogenation, and oxidation reactions.
	en.wikipedia.org /wiki/Adam's_catalyst (353 words)

	Ammonium dihydrogen phosphate, Ammonium phosphate, Ammonium phosphate monobasic CAS #: 7722-76-1
		Ammonium dihydrogen phosphate, Ammonium phosphate, Ammonium phosphate monobasic CAS #: 7722-76-1
		chemBlink >> Chemical Listing >> A >> Ammonium dihydrogen phosphate
		The Complete List of Chinese Suppliers for Ammonium dihydrogen phosphate
	www.chemblink.com /products/7722-76-1.htm (31 words)

	Catalysts for c8 alkylaromatic isomerization process patent invention (Site not responding. Last check: )
		For example, a weak, 0.01 molar nitric acid may be used in conjunction with ammonium nitrate to perform the acid wash, although substantially higher concentrations, up to about 20 wt-% nitric acid, are preferred.
		Alternatively or in addition to the steaming, the composite may be washed with one or more of a solution of ammonium nitrate, a mineral acid, and/or water.
		To a solution of 1428 grams ammonium nitrate in 3224 grams distilled water was added 932 grams of 70 wt-% nitric acid and the mixture was heated to 85.degree.
	www.freshpatents.com /Catalysts-for-c8-alkylaromatic-isomerization-process-dt20050714ptan20050153829.php?type=description (5355 words)

	ammonium (Site not responding. Last check: )
		Sodium or ammonium thiosulfate are used as photographic fixing agents.
		are used in photographic fixing, are oxidizing agents, and ammonium thiosulfate is being investigated as a cyanide replacement...
		Ammonium nitrate is a substance most commonly used as...
	www.homesteading101.com /farm/ammonium&start=20 (618 words)

	Platinum
		All the chemical purification processes leave platinum in colloidal form as "platinum sponge" or "platinum fl." There may be no fundamental difference between materials described by these two terms.
		Platinum sponge is said to be made by heating ammonium chloroplatinate, and platinum fl by reducing chloroplatinic acid solution with zinc.
		The chloroplatinates and the oxides are about all that is of importance.
	www.du.edu /~jcalvert/phys/platinum.htm (2653 words)

	Palladium - Thebulliondesk (Site not responding. Last check: )
		He did this by dissolving the ore in aqua regia, neutralizing the solution with sodium hydroxide, NaOH, precipitating platinum as ammonium chloroplatinate through treatment with ammonium chloride, NH4Cl, and then adding mercuric cyanide to form the compound palladium chloride was at one time prescribed as thebulliondesk a tuberculosis treatment at the rate of 0.
		He did this by dissolving the thebulliondesk ore in aqua regia, neutralizing the solution with sodium hydroxide, NaOH, precipitating platinum as ammonium chloroplatinate through treatment with ammonium chloride, thebulliondesk NH4Cl, and then adding mercuric cyanide to form the compound palladium cyanide.
		Chloroplatinate through treatment with ammonium chloride, NH4Cl, and then adding mercuric cyanide to form the compound palladium chloride was at one time prescribed as a free metal and alloyed with platinum and gold with platinum group thebulliondesk metals.
	thebulliondesk.pay-e-bullion.org /palladium/thebulliondesk.html (3295 words)

	charge preparatopm material
		The combined aqua regia leach solutions are repeatedly evaporated with hydrochloric acid to remove nitric acid and finally evaporated to dryness yielding chloroplatinic acid.
		These crystals are dissolved in 1 N hydrochloric acid, filtered, and treated with an excess of ammonium chloride and an equal volume of ethanol, producing the bright yellow salt ammonium chloroplatinate.
		The insoluble salt is filtered, washed with 20% ammonium chloride, and reduced to metal with hydrogen at 600° C. Spectrographic analysis of the recovered Pt metal indicates only traces of impurity.
	www.apace-science.com /colutron/charge/chrg_pt.htm (343 words)

	PLATINUM CATALYST FOR REDUCTIONS
		In a large proportion of the reductions studied, platinum oxide prepared from the chloroplatinic acid mentioned gave as good results as that from spectroscopically pure chloroplatinic acid made according to the directions of Wichers.
		If organic matter is present in the chloroplatinic acid, as it generally is when recovered platinum is used, it will be oxidized during the fusion and, except in cases requiring a spectroscopically pure platinum, seems to have no deleterious effect.
		It is probable also that the temperature at which the platinum oxide is formed from the chloroplatinic acid and the solvent present have some effect on the ease with which it is reduced to platinum fl.
	www.orgsyn.org /orgsyn/orgsyn/prepContent.asp?prep=cv1p0463 (2388 words)

	Method of fabricating self-aligning stacked capacitor using electroplating method - Patent 6255187
		A method of fabricating a stacked capacitor, as recited in claim 1, wherein the lower electroplating process is performed using ammonium platinum nitrite (Pt(NH.sub.3).sub.2 (NO.sub.2).sub.2), ammonium chloroplatinate ((NH.sub.4).sub.2 PtCl.sub.6), or chloroplatinic acid (H.sub.2 PtCl.sub.6) as a plating solution.
		A method of fabricating a stacked capacitor, as recited in 13, wherein the upper electroplating process is performed using an ammonium platinum nitrite (Pt(NH.sub.3).sub.2 (NO.sub.2).sub.2), ammonium chloroplatinate ((NH.sub.4).sub.2 PtCl.sub.6), or chloroplatinic acid (H.sub.2 PtCl.sub.6) as a plating solution.
		A method of fabricating a stacked capacitor, as recited in claim 1, wherein the conductive areas are pads for electrically connecting the buried contacts to the active areas of the semiconductor substrate.
	www.freepatentsonline.com /6255187.html (6062 words)

	Catalyst for hydrocarbon conversion - Patent 4000058
		Platinum may be used in any known form, for example as hexachloroplatinic acid, ammonium chloroplatinate, platinum sulfide, sulfate or chloride.
		Catalyst P : 0.160 g of platinum in the form of chloroplatinic acid and 0.08 g of manganese in the form of manganese acetate.
		Catalyst Q : 0.160 g of platinum in the form of chloroplatinic acid, 0.04 g of iridium in the form of iridium chloride and 0.08 g of manganese in the form of manganese acetate.
	www.freepatentsonline.com /4000058.html (2161 words)

	Chemical Processing Industrial Inorganic Chemical Overview
		Crystallization provides a method of purification that is important for production of sodium chloride, sodium and ammonium sulfate, and sucrose.
		Although simple in principal, the process is often a complex simultaneous process of heat and mass transfer made more difficult by fluid and particle mechanics.
		Fertilizer chemicals such as ammonium nitrate are manufactured on a large scale using this technique.
	www.gfsignet.com /applications/CP_IIC.htm (1182 words)

	Rhodium Information Center - rhodium plating
		He then precipitated the platinum metal by adding ammonium chloride, catalyst rhodium NH Cl, as ammonium chloroplatinate.
		There are also numerous meta states with the most stable being Rhm-102 (0.141 MeV) with a half-life of about 2.9 years and Rhm-101 (0.157 MeV) with a half-life of 4.34 days.
		The primary decay mode before the only stable rhodium platinum isotope, Rh-103, is electron capture and the primary mode after rhodium ammonium hexachloroiridate is beta emission.
	www.scipeeps.com /Sci-Chemistry_Topics_Pr_-_R/Rhodium.html (865 words)

	Platinum (EHC 125, 1991)
		When heated, the ammonium salt of this acid produces a grey platinum sponge.
		Potential health hazards of exposure to soluble platinum salts are encountered during the later stages of the refining process.
		After several purification processes there is a second precipitation of this complex salt, which is then filtered off, dried and finally calcined to yield a spongy mass of platinum metal having purity of 99.95-99.99%.
	www.inchem.org /documents/ehc/ehc/ehc125.htm (13209 words)

	Reforming with multimetallic catalysts (Site not responding. Last check: )
		The metal hydrogenation components can be composited or intimately associated with the porour inorganic oxide support or carrier by various techniques known to the art such as ion-exchange, coprecipitation with the alumina in the sol or gel form, and the like.
		For example, the catalyst composite can be formed by adding together suitable reagents such as a salt of platinum and ammonium hydroxide or ammonium carbonate, and a salt of aluminum such as aluminum chloride or aluminum sulfate to form aluminum hydroxide.
		Where the Group VIII noble metal is platinum, platinum chloride, platinum nitrate, chloroplatinic acid, ammonium chloroplatinate, potassium chloroplatinate, platinum polyamine, platinum acetylacetonate, and the like, are preferably used.
	www.sacnewsmonthly.com /invent/viscous_fluid_coupling/reforming_with_multimetallic_catalysts.html (3511 words)

	Free-TermPapers.com - Platinum
		For example, when the natural alloy of platinum, palladium, osmium, and rhodium is digested with aqua regia, the palladium and platinum dissolve and are extracted as a solution of chloropalladic acid and chloroplatinic acid.
		Platinum is then precipitated from this solution as ammonium chloroplatinate.
		Platinum is an attractive silvery white metal with a melting point of 1,774 deg C, a boiling point of 3,827 deg C and a density of 21.45 g/cu cm at room temperature.
	www.free-termpapers.com /tp/39/sxm9.shtml (946 words)

	4hv.org: Forums / Chemistry / Electroplating, platinum
		You could also try plating from ammonium chloroplatinate (another common platinum plating salt).
		To get chloroplatinic acid back, just heat the ammonium chloroplatinate to decomposition then dissolve the Pt powder back in aqua regia (yielding chloroplatinous acid after some additional treatments with HCl), then chlorinate further with chlorinated water.
		Treat chloroplatinous acid with chlorinated water to yield chloroplatinic acid, then boil dry.
	4hv.org /e107_plugins/forum/forum_viewtopic.php?17170 (1976 words)

	suitability of Ammoniumtetrachloroplatinate for Zia - APUG
		I'm trying to speed up my supply of chemicals, and although Bostick and Sullivan are nice folks, they are just too far away for convenience.
		From what I've been checking lately in chemistry supplies, my guess is that the ammonium will be more expensive than the potassium chloroplatinate.
		In it there is a discussion of Mike Ware using ammonium chloroplatinite (not ammonium chloroplatinate I realize).
	www.apug.org /forums/forum42/24350-suitability-ammoniumtetrachloroplatinate-zia.html (453 words)

	Roger Adams (Site not responding. Last check: )
		Roger Adams and his students developed the so called Adams\' catalyst, which is one of the most readily-prepared and active catalysts for hydrogenation reactions.
		The catalyst can be prepared by fusing sodium nitrate with chloroplatinic acid or ammonium chloroplatinate.
		Adams\'s group also developed a low-pressure apparatus for using the catalyst, which had a profound effect in the synthesis and structural elucidation of organic compounds as well as biochemical compounds.
	www.syossetnyus.com /details/Roger_Adams (1538 words)

	Database of suppliers of chemicals
		Company is one of the main distributors of ingredients for the food, animal feed, pharmaceutical and cosmetics industry particular in the trade of vitamins and sweeteners.
		We are also manufactures silico tungstic acid, pottasium iodo bismuthate, ammonium ceric nitrate, ammonium ceric sulphate and many more.
		Ammonium Perchlorate, Potassium Chlorate, Sodium Chlorate Barium Chlorate, Potassium Perchlorate, Sodium Perchlorate
	www.alldatabases.com /chemicals_manufacturers_exporters.htm (9444 words)

	Dihydrogen hexachloroplatinate (IV) hexahydrate (Site not responding. Last check: )
		Alternatively, the nitric acid in aqua regia can be replaced with 30% solution of hydrogen peroxide.
		Speier found that chloroplatinic acid avoided polymerization, a problem that plaged previous attempts at hydrosilylation.
		Sigma-Aldrich Corp http://www.sigmaaldrich.com Select your country, and search \'chloroplatinic acid\'
	www.newcitynyus.com /info/Chloroplatinic_acid (771 words)

	agau
		Also sometimes you can use ammonium hydroxide to dissolve silver chloride but it only dose so to a low percentage of silver then you can get the silver chloride back by neutralizing till the ammonia smell is gone and is very slightly acid or neutral, but you can use indicators such as litmus paper.
		Their is some interesting reducing agents you can try such as hydrazine it will reduce many low activity metals from compounds directly to metal.
		I have found that palladium won’t precipitate from aqua regia by ammonium chloride if you first dilute to about double the volume with water but if the aqua regia is still concentrated palladium will also precipitate and I have used this method to recover palladium after the platinum was removed.
	www.dalet.addr.com /auag.htm (3907 words)

	ammonium chloroplatinate
		Can I use litharge on ammonium chloroplatinate and cupel to extract the Platinum?
		And as a final thought, it might be easier and cheaper to extract the platinum chemically, if you have a large enough amount to work with.
		Precipitating platinum from an AR leach is doable, but I would first check on a couple things, as ammonium and chlorides can create a combination problem.
	bb.bbboy.net /alaskagoldforum-print?forum=2&thread=583 (387 words)

	PMR: FINAL ANALYSIS: January 2007
		‘Platinum sponge’ is a particulate form of the metal obtained by strongly heating ammonium chloroplatinate.
		Adams found that heating ammonium chloroplatinate in molten sodium nitrate at 500°C for 30 minutes was more effective than ignition in air (4).
		Pouring the molten mass into water, followed by boiling and washing, gave a muddy brown precipitate (said to be platinum dioxide) that could be concentrated by centrifugation.
	www.platinummetalsreview.com /dynamic/article/view/51-1-52 (548 words)

Try your search on: Qwika (all wikis)