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Cadmium - Wikipedia, the free encyclopedia Even though cadmium and its compounds are highly toxic, the British Pharmaceutical Codex from 1907 states that cadmium iodide was used as a medicine to treat "enlarged joints, scrofulous glands, and chilblains". Consequently, cadmium is produced mainly as a byproduct from mining, smelting, and refining sulfide ores of zinc, and to a lesser degree, lead and copper. Cadmium poisoning is the cause of the itai-itai disease, which literally means "pain pain" in Japanese. en.wikipedia.org /wiki/Cadmium   (994 words)

Cadmium - LoveToKnow 1911 Cadmium oxide, CdO, is a brown powder of specific gravity 6.5, which can be prepared by heating the metal in air or in oxygen; or by ignition of the nitrate or carbonate; by heating the metal to a white heat in a current of oxygen it is obtained as a dark red crystalline sublimate. Cadmium salts can be recognized by the brown incrustation which is formed when they are heated on charcoal in the oxidizing flame of the blowpipe; and also by the yellow precipitate formed when sulphuretted hydrogen is passed though their acidified solutions. Cadmium is estimated quantitatively by conversion into the oxide, being precipitated from boiling solutions by the addition of sodium carbonate, the carbonate thus formed passing into the oxide on ignition. www.1911encyclopedia.org /Cadmium   (1190 words)

Cadmium A relatively rare, soft, bluish-white, toxic transition metal, cadmium occurs with zinc ores and is used primarily in batteries. About three-fourths of cadmium is used in batteries (esp. Ni-Cd batteries) and the remaining one-fourth is used mainly for pigments, coatings and plating, and as stabilizers for plastics. Cadmium is one of the few elements that has no constructive purpose in the human body. www.ebroadcast.com.au /lookup/encyclopedia/ca/Cadmium.html   (697 words)

Cadmium chloride - Wikipedia, the free encyclopedia Cadmium chloride is a white crystalline compound of cadmium and chlorine, with the formula CdCl Anhydrous cadmium chloride can be prepared by the action of anhydrous chlorine or hydrogen chloride gas on heated cadmium metal. Cadmium chloride is used for the preparation of cadmium sulfide, used as "Cadmium Yellow", a brilliant yellow pigment which is stable to heat and sulfide fumes. en.wikipedia.org /wiki/Cadmium_chloride   (448 words)

CADMIUM Cadmium is transported in the plasma as a complex with metallothionein and may be toxic to the kidney when excreted in the glomerular filtrate. The accumulation of cadmium in the liver and its subsequent redistribution to the kidney is due to efficient metallothionein synthesis in the liver; cadmium–metallothionein is slowly released into the plasma, filtered through the glomeruli and reabsorbed in the proximal tubules. Estimates of the cadmium intake of the population of the United Kingdom and of adult consumers were derived from data on residues of cadmium from the total diet study of the Ministry of Agriculture, Fisheries and Food and data on consumption from the national food survey and the dietary and nutritional survey of British adults. www.inchem.org /documents/jecfa/jecmono/v46je11.htm   (16398 words)

Cadmium (PIM 089) Free cadmium ions in the cells as a result of the degradation of metallothionein initiate the synthesis of new metallothionein which then binds the cadmium thereby protecting the cell from the highly toxic free cadmium ions. Exon JH & Koller LD (1986) Immunotoxicity of cadmium. Nechay BR & Saunders JP (1977) Inhibition of renal adenosine triphosphatase by cadmium. www.inchem.org /documents/pims/chemical/cadmium.htm   (11155 words)

Dartmouth Toxic Metal Research - Toxic Metals! Cadmium ions in solution could be electrically attracted to the surface of a metal submerged in a cadmium salt solution, resulting in a thin layer of cadmium that could protect the underlying material from corrosion. The cadmium, it was later found, had reduced the calcium content and density of their bones In some cases, simple movements caused the weakened bones to break. They concluded that, while cadmium and various cadmium compounds including cadmium sulfide are both poisonous and carcinogenic to humans and animals, it was not evident that these compounds were bioavailable — in a form that would be toxic to the body — to test subjects during the army’s tests. www.dartmouth.edu /~toxmetal/TXSHcd.shtml   (1571 words)

handprint : synthetic inorganic pigments Cadmium deep orange, scarlet and red, creating by adding increasing amounts of selenium (cadmium sulfoselenide, PO20 and PR108), was described in patents of 1892 but not marketed in artists' paints until 1910. Cadmiums are saturated, semiopaque to opaque (they become less opaque as they dry), lustrous, dense and very smooth (powdery) pigments, expensive but extremely permanent in pure form and if not mixed with lead or iron paints. Cadmiums are considered mildly to moderately toxic (especially the reds, which also contain selenium) because they can cause poisoning sickness or cancer if eaten or inhaled in large quantities as a pigment powder, sprayed paint, pastel residue, or fumes from heated pigment. www.handprint.com /HP/WCL/pigmt1b.html   (4074 words)

American Elements: Cadmium Supplier & Technical Information Cadmium is a component of some of the lowest melting alloys; it is used in bearing alloys with low coefficients of friction and great resistance to fatigue. Cadmium compounds are used in fl and white television phosphors and in blue and green phosphors for color television tubes and CRT monitors. Cadmium is similar to carbon in that it has a capacity to form stable covalently bonded molecular networks. www.americanelements.com /cd.html   (164 words)

Periodic Table : Scholar edition: cadmium : Biological information   (Site not responding. Last check: 2007-10-24) Cadmium might be a necessary element in very, very, small quantities in rats. Cadmium compounds are carcinogenic and may be teratogenic. Alarmingly, the British Pharmaceutical Codex from 1907 indicates that cadmium iodide ("cadmii iodidum", CdIª) was used as a medicine, "for application with friction to enlarged joints, scrofulous glands, and chilblains". www.webelements.com /webelements/scholar/elements/cadmium/biological.html   (340 words)

Chapter 9. Collodion Sensitizers--Iodides and Bromides Iodides and bromides, which are soluble, in ether and alcohol, can alone be employed in the preparation of sensitized collodion, in order to produce, by decomposition in and on the film, an iodide and a bromide of silver, which are insoluble. The actinic impression on the iodide and bromide of silver is invisible or latent, and requires the aid of some developing agent to snake manifest the effect of light; whilst the impression made on the chloride of silver becomes manifest in proportion to the intensity and duration of light. The iodides and bromides most generally employed by the photographer are those of lithium, potassium, sodium, ammonium, cadmium, and silver. albumen.stanford.edu /library/monographs/sunbeam/chap09.html   (1129 words)

Timeline - Krone-Sammlung   (Site not responding. Last check: 2007-10-24) Cadmium salts were introduced into the wet collodion process in 1853 by Laborde. He suggested that cadmium bromide be mixed with alkali iodides, but also particularly valued cadmium iodide. Cadmium salts alone greatly improve the keeping properties of collodion, but cause it to become somewhat viscous with reduced brilliancy. www.knaw.nl /ecpa/sepia/exhibition/iapp/Glossary/C_03.htm   (79 words)

Silver - Wikipedia, the free encyclopedia Silver iodide has been used in attempts to seed clouds to produce rain. Silver oxide is used as a positive electrode (cathode) in watch batteries. Ag are palladium (element 46) isotopes and the primary products after are cadmium (element 48) isotopes. en.wikipedia.org /wiki/Silver   (2321 words)

Process for the preparation of oxalate esters - Patent 4076949 A process according to claim 8 wherein the metal salt compound is selected from palladium iodide, palladium sulfate, palladium chloride, palladium bromide, platinum acetate, platinum chloride, platinum bromide, copper iodide, cadmium chloride, cadmium iodide, and rhodium chloride. The palladium, platinum, rhodium, copper, and cadmium compounds employed may be in a homogeneous state in the reaction mixture at reaction conditions. The ligands may be, for example, alkyl or aryl phosphines arsines, or stibines or halide salts, such as lithium iodide, ammonium chloride, and triethylammonium iodide, etc. The complexes of the metal salt compounds which are suitable for use in the process of the present invention include complex compounds of palladium, platinum, rhodium, cadmium, and copper. www.freepatentsonline.com /4076949.html   (5473 words)

Chapter 12. Normal or, Plain Collodion, Iodized Collodion, Bromo-Iodized Collodion The iodide and bromide of potassium are dissolved in the smallest quantity of water. As soon as withdrawn from this bath, the collodion plate is washed in distilled water, and either used immediately by immersing it in a weak solution of nitrate of silver, or put away to dry. If the film contained a pure iodide, or a pure bromo-iodide of silver, without the presence of a nitrate, the results would not be satisfactory. albumen.stanford.edu /library/monographs/sunbeam/chap12.html   (934 words)

George Berkhofer Collodion Photographer From this experience we knew there would have to be iodide and bromide in collodion, but of proportions we knew nothing. By the end of the summer of 1955 we were regularly adding ammonium iodide to the colloion, with a resulting considerable increase in speed. The only salts I never tried were zinc iodide and lithium iodide (I never could find either), sodium bromide (seemed to be little advantage over the potassium), or ferrous iodide which you have to make yourself and Burgess says is very short-lived. www.collodionart.com /bio.htm   (1776 words)

Encyclopedia :: encyclopedia : Cadmium   (Site not responding. Last check: 2007-10-24) Naturally occurring cadmium is composed of 5 stable isotopes. This element also has 8 meta states with the most stable being Cd-113m (t The isotopes of cadmium range in atomic weight from 96.935 u (Cd-97) to 129.934 amu (Cd-138). www.hallencyclopedia.com /Cadmium   (842 words)

IRON [symbol Fe, atomi... - Online Information article about IRON [symbol Fe, atomi... cadmium from the nitrates, and iron from the sulphate, but it immediately throws down nickel and cadmium from the sulphates and chlorides, and See also: It closely resembles the chloride in being deliquescent, dissolving ferric hydrate, and in yielding basic salts. Fe2P3 is prepared by the action of phosphorus iodide vapour on reduced iron. encyclopedia.jrank.org /INV_JED/IRON_symbol_Fe_atomic_weight_55.html   (6722 words)

Chemistry : Periodic Table : cadmium : biological information Here are a few notes about the biological role of cadmium. Here are a few notes about the hazards and risks associated with cadmium. Alarmingly, the British Pharmaceutical Codex from 1907 indicates that cadmium iodide ("cadmii iodidum", CdI www.webelements.com /webelements/elements/text/Cd/biol.html   (312 words)

PSIgate - Physical Sciences Information Gateway: Search/Browse Results The properties of the element cadmium are given, including: chemical data, thermal properties, ionisation energy and abundance, minerals and uses, and reduction potentials. A background to cadmium chemistry is provided, while there are further sections devoted to the uses of cadmium (focusing on batteries, pigments etc.) and the impact of cadmium on the environment. Lists of manufacturers, recycling plants and other organisations likely to come into contact with cadmium are provided, together with links to three articles about European legislation regarding the effects of cadmium on the environment. www.psigate.ac.uk /roads/cgi-bin/psisearch.pl?term1=cadmium&limit=0&subject=All   (1036 words)

Cadmium Iodide PA** Ficha de datos de seguridad Panreac Química, S.A. Cadmium Iodide PA** Ficha de datos de seguridad Panreac Química, S.A. S a f e t y D a t a S h e e t According to Directive 2001/58/CE Cadmium Iodide PA Identification of the substance/preparation and of the company or firm The information included in this Safety Data Sheet is based on our most up-to-date knowledge, and is solely intended to inform regarding aspects of safety; the properties and characteristics indicated herein are not guaranteed. www.panreac.com /new/esp/fds/Ing/X121209.htm   (587 words)

Society of American Silversmiths - Glossary Ornamental and protective platings are very thin, usually from 1/1,000 to 2/1,000 of an inch (0.03 to 0.05 millimeter) thick. For plating gold, silver, copper, zinc, and cadmium, cyanide solutions of the same metals are often used. Copper and zinc may also be plated by acid-sulfate solutions. www.silversmithing.com /glossary.htm   (2957 words)

Cadmium iodide - toxicity, ecologicial toxicity and regulatory information   (Site not responding. Last check: 2007-10-24) Cadmium iodide - toxicity, ecologicial toxicity and regulatory information Water Pollution Potential and Criteria for Cadmium iodide Sorry, no water quality standards or criteria have been established for this chemical by the U.S. or Canadian governments; however, there may be criteria established for related chemicals. www.pesticideinfo.org /Detail_Chemical.jsp?Rec_Id=AQ5461   (312 words)

Surepure Chemetals, Precious & Specialty Metals Supplier : Cadmium Cadmium is available in wire, sheet, rod, and shot. Definition based on: The American Heritage® Dictionary of the English Language, Third Edition copyright © 1992 by Houghton Mifflin Company. We will try to get back to you within 24 hours. www.surepure.com /products.php?ID=6   (248 words)

Heavy Metals offered by GFS Chemicals Granular form for Cadmium Reduction method for Nitrate. See apparatus section for information about using this product in a reductor tube. Dropped by ACS as ACS reagent effective with 9th edition. www.gfschemicals.com /productcatalog/Heavy_Metals.asp   (520 words)

Aqueous Reactions: Sodium Iodide Here, sodium iodide (NaI) is added to cadmium nitrate (Cd(NO The result is no visible reaction. Here, sodium iodide (NaI) is added to mercury(II) ion (Hg The result is an orange precipitate. Here, sodium iodide (NaI) is added to mercury(I) nitrate (Hg The result is an orange precipitate. jchemed.chem.wisc.edu /JCESoft/CCA/CCA4/MAIN/NAIX/PAGE1.HTM   (345 words)

Cadmium Iodide, Crystal, Reagent, Chemistry Supplies and Laboratory Chemicals Cadmium Iodide, Crystal, Reagent, Chemistry Supplies and Laboratory Chemicals The LAB DEPOT is your source for laboratory chemicals equipment and scientific supplies including Cadmium Iodide, Crystal, Reagent, reagent chemicals, research products and lab test kits for water purification and pH sampling. The LAB DEPOT website has been designed for ease of use. www.labdepotinc.com /chemical_details~pid~C1035.aspx   (130 words)

The Structure of Cadmium Iodide, CdI2   (Site not responding. Last check: 2007-10-24) has a common structural arrangement shared by many halides of the transition metals with formula MX It has a hexagonal close packed array of iodide ions with Cd(II) sitting in 1/2 of the octahedral sites and between adjacent layers of I's. Information is available to show how the individual structural pages were created. Links checked and/or last modified 1st November 2005. wwwchem.uwimona.edu.jm:1104 /courses/cdi2.html   (89 words)

Chemical Toxicity Studies for Cadmium iodide on All Organism Groups Chemical Toxicity Studies Chemical Toxicity Studies for Cadmium iodide on All Organism Groups Chemical Toxicity Studies Home > Chemical Search > Cadmium iodide Information Toxicity Studies for Cadmium iodide on All Organism Groups - Toxicology studies from the primary scientific literature on aquatic organisms www.pesticideinfo.org /List_AquireAll.jsp?Rec_Id=AQ5461   (127 words)

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