Where results make sense

About us   |   Why use us?   |   Reviews   |   PR   |   Contact us

Antimony - LoveToKnow 1911 Antimony and its salts may be readily detected by the orange precipitate of antimony sulphide which is produced when sulphuretted hydrogen is passed through their acid solutions, and also by the Marsh test (see Arsenic); in this latter case the fl stain produced is not soluble in bleaching powder solution. Antimony may be estimated quantitatively by conversion into the sulphide; the precipitate obtained is dried at too° C. and heated in a current of carbon dioxide, or it may be converted into the tetroxide by nitric acid. Antimony trifluoride, SbF 3, is obtained by dissolving the trioxide in aqueous hydrofluoric acid or by distilling antimony with mercuric fluoride. www.1911encyclopedia.org /Antimony   (3144 words)

Metallurgy - LoveToKnow 1911 The sulphides of lead and copper yield, the former a mixture of oxide and normal sulphate, the latter one of oxide and basic sulphate. Sulphide of antimony, when roasted in air, is converted into a kind of alloy of sulphide and oxide; the same holds for iron, only its oxysulphide is quite readily converted into the pure oxide Fe203 by further roasting. Sulphide of lead, when fused together with metallic iron in the proportion of 2Fe: I PbS yields a regulus (= I Pb) and a "mat" Fe 2 S, which, however, on cooling, decomposes into the ordinary sulphide FeS, and finely divided iron. www.1911encyclopedia.org /Metallurgy   (2247 words)

Antimony in alchemy Antimony compounds especially the trisulphide were used in antiquity, for example Kohl (al-koh'l of the Arabs), used to stain the eyelids. Saffron of antimony = Golden sulphide of antimony, or Golden sulphuret of antimony, the pentasulphide of antimony, which is of a golden or orange yellow powder. It is a compound of antimony trioxide and trisulphide. www.levity.com /alchemy/antimony_in_alchemy.html   (584 words)

Stibnite from South Africa Antimony is a metal used to harden lead alloys for use in batteries and other applications. Antimony oxides are used in paint pigments, as colouring agents in glass, and as fire retardents. Ore on the local "Antimony Line" is confined to a 10-25-m zone of massive quartz-carbonate rock in an envelope of schistose chloritic quartz-carbonate rock and talc-carbonate schist (Willson and Viljoen, 1986). www.turnstone.ca /stibnite.htm   (746 words)

Berthierite from Bunut gold prospect, Kalimantan, Indonesian Borneo Berthierite is a relatively uncommon iron-antimony sulphide, FeSb The mineral grains in the smaller photos are in a gold-bearing sulphide concentrate from Bunut. The mineral and chemical assemblage, enriched in arsenic, antimony, copper, gold and silver, is typical of many gold deposits. www.turnstone.ca /berthier.htm   (660 words)

Hg2Sb2O7 The association of mercury and antimony with each other and the alchemist s target element, gold, is far from being the only reason for believing they chose them for the creation of their transmuting powder, the so-called Philosopher s Stone. Antimony, its trioxide, its pentoxide and its trisulphide were added to HgO so that about 2 gm of the mixture was present and heated in a 150 ml flat-bottomed flask with a bent exhaust tube until an exothermic reaction developed. It is difficult to form antimony amalgam but is sufficient tendency for it to amalgamate to cause gaseous ions like oxides and chlorides to be expelled from mixtures of their compounds due to their displacement by the metal atoms. www.geocities.com /smshires.geo   (9009 words)

The Alchemists Garret - Kermes This preparation (Kermes), in particular, because the Antimony used is a sulphide and has not previously been calcined to a white salt, or oxide, contains an extract of native or crude sulphur. Antimony is a dangerous poison of the same magnitude as arsenic. Therefore any sulphide preparation, as with the one we discuss here, should be considered a combination of the primary metal and sulphur. www.angelfire.com /nb/alchemy/kermes.htm   (1102 words)

51 Antimony The word Antimony is a Latin corruption of Arabic انتيمون ([al-]ithmīd), which is derived from Latin Stibium, which came from Greek στιβι [stibi] = a cosmetic powder (Sb explanations as "an enemy of solitude" or "against the monks" are phantasies. Antimony, in the form of its sulphide (stibnite, Sb), has been known from very early times, more especially in Eastern countries, reference to it being made in the Old Testament. Antimony sulphide (Sb) in the form of powder was used in the Orient as a cosmetic to darken and beautify their eyebrows. www.vanderkrogt.net /elements/elem/sb.html   (658 words)

THE KERMES   (Site not responding. Last check: 2007-10-30) Melt in a mud refractory crucible on a gas oven, 5 parts of natural antimony sulphide or stibnite, thin powdered, with 3 of potassium carbonate anhydrous. Boil during three-quarter of an hour in a glass Pyrex vase on an electric oven, one part of antimony sulphide, thin powdered and 22 parts of sodium carbonate anhydrous in 250 parts of tap water. The mother waters of the kermes contain the sulphantimous acid in dissolution by the alkaline sulphide, and, this last one being treated by the acid that decomposes this sulphide, it precipitates a moisturised antimony sulphide, the one that is commonly known by the name of gold antimony gold sulphur. pwp.netcabo.pt /r.petrinus/kermes-e.htm   (362 words)

Discovery of Germanium I realized only later that germanium really was present in the sodium sulphide solution but precipitated as the sulphide only after adding much acid, because it is considerably soluble in acid-free liquids and thus, once precipitated, could not be washed with water except with great losses or even complete disappearance (by dissolution). Leaving the sulphur behind, germanium sulphide is dissolved, and when the solution is then strongly acidified by hydrochloric acid, a white, voluminous precipitate is obtained that cannot be mistaken for sulphur. By adding the hydrochloric acid slowly in drops, first antimony sulphide, then arsenious sulphide are separated; after filtration, a solution is obtained from which snow-white germanium sulphide precipitates upon further, ample addition of hydrochloric acid. dbhs.wvusd.k12.ca.us /webdocs/Chem-History/Disc-of-Germanium.html   (912 words)

Antimony Sulfide - UK Rocketry & Pyro forums   (Site not responding. Last check: 2007-10-30) When you say you can't make it, do you mean antimony sulphide or antimony metal (or both), and when you say synthetic antimony does not work well, do you specifically mean in glitter, or in any pyro composition. OTOH, if antimony oxide cannot be reduced with carbon at temperatures attainable with charcoal and a forced air supply, I could halve the cost of my order. For the first half (oxide ->metal) I quote Lancaster: “It is usually prepared by heating the native sulphide (stibnite) with scrap iron, or with poorer quality ores by burning off sulphur in a reverberatory furnace to produce the oxide — which is then reduced with carbon”. www.ukrocketry.co.uk /forum/index.php?showtopic=590   (732 words)

An Artificial Synthesis Of Gold? You Be The Judge - Mark House After cooling and the addition of chemically pure antimony sulphide, it was again put back into the furnace, small quantities of orpiment being thrown in every 5 minutes. I prepared a mixture composed of 6 grams of chemically pure silver, 1 gram of native orpiment (Arsenic trisulphide A52S3) free from gold, 1 gram of chemically pure antimony sulphide, and 2 grams of chemically pure Tellurium. 2 Grams of antimony sulphide, 1 gram of orpiment, and 1 gram of Tin; all these bodies were obtained from the Establishment Poulenc of Paris and were chemically pure. www.levity.com /alchemy/markh_4.html   (1833 words)

Chemicals in the UK - UK Rocketry & Pyro forums   (Site not responding. Last check: 2007-10-30) Antimony Trisulfide and Realgar are more difficult to find, not that I really want to fool around with Realgar much. I think this could be reduced with carbon, as antimony sulphide is used in a flare composition in "Das Feurwerkbuch," written in about 1400, and medieval alchemists often used metallic antimony, and they can't have made it elecrolytically. Note that the antimony (III) sulphide used in fireworks is mainly the crushed rock stibnite and not a chemically made one. www.ukrocketry.co.uk /forum/index.php?showtopic=92   (884 words)

Chemistry at HW - People - Academic Staff   (Site not responding. Last check: 2007-10-30) We have shown that in ordered defect sulphides, containing octahedral MS slabs, these electronic transitions are related to distortions of the dichalcogenide block. Extension of this approach to the synthesis of new silver-antimony sulphides has, with ethylenediamine, yielded a new structure type in which 50% of tetrahedral and 100% of octahedral interstitial sites between pairs of close packed anion layers are simultaneously occupied. This, combined with the ability to produce materials of a given structural type over a range of vacancy concentrations, which provides a means of controlling the critically important thermal conductivity, has led us to explore the application of low-dimensional chalcogenides, containing a variety of two-dimensional building blocks, as thermoelectric materials. www.hw.ac.uk /cheWWW/people/acad/avp.html   (895 words)

Education Resources » Kermes mineral The compound is reddish brown in color and described as a velvety powder which is insoluble in water. It was used extensively in the medical field until the general use of antimony compounds declined due to toxic affects. Used for centuries in medicine as a health treatment, diaphoretic (causing sweat), anti-inflammatory and emetic it was used through the 19th century and its use extended to epilepsy treatment in addition to hectic fever. www.thecatalyst.org /resource/2006/04/21/Kermes-mineral   (286 words)

Bacterial S-layer preservation and rare arsenic-antimony-sulphide bioimmobilization in siliceous sediments from ... Detailed analysis by transmission electron microscopy and energy dispersive spectrometry has shown that bacterial cell wall and capsular material is preserved by the immobilization of high levels of As, Sb and S in the organic matrix. Calculation of the probable metal species in the spring water suggests that arsenic and antimony are present in solution as negative and neutrally charged sulphide or hydroxide complexes (such as HAs^sub 2^S^sub 4^^sup -^, H^sub 3^AsO^sub 3^ and HSb^sub 2^S^sub 4^^sup -^). The early adsorption of these complexes onto reactive groups on the bacterial surface may be paramount in the excellent preservation of cell morphology. www.findarticles.com /p/articles/mi_qa3721/is_200503/ai_n13476487   (809 words)

The history of chemistry on Earth and Almea Antimony was used in the -7C to decolorize glass. Antimony (sulphide) was a popular remedy, often used as a purgative. The confusion of antimony with arsenic and the use of the latter by unscrupulous or uninformed physicians contributed to the disrepute and sometimes prohibition of antimony remedies. www.zompist.com /versci.htm   (6782 words)

33809. How to do antimony coating [Georgia] We need to have a very hard and substantial coating of Antimony coated onto an electrode.The substrate is of nickel/copper with a very thin layer of gold plating for conductivity. We have tried vacuum depositing and Sputtering the Antimony on and in both case it is not adequate. The Antimony flakes off of the surface or appears to be soft. www.finishing.com /338/09.shtml   (169 words)

Twinkling Star Brand Antimony Trioxide The Twinkling Star brand antimony trioxide is packed in 25kg paper bags, 40 bags on a pallet. The Twinkling Star brand antimony trioxide is manufactured by Hsikwangshan Twinkling Star Antimony Co. Ltd.,in Hunan, China. Hsikwangshan, established over 100 years ago, is the largest antimony producer in the world. www.3ninc.com /twinkling_star_antimony_oxide.htm   (102 words)

Pyrargyrite - Search Results - ninemsn Encarta Pyrargyrite, silver ore (see Mining) composed of silver antimony sulphide (Ag SbS Pyrargyrite is deep red to fl with a bright, diamond-like... - important silver ore: a deep red to fl lustrous mineral that consists of silver antimony sulphide and is a source of silver. au.encarta.msn.com /Pyrargyrite.html   (109 words)

Quartz 'N' All - High Quality Crystals, Minerals and Fossils Stibnite (Antimonite) page. In veins associated with silver, lead and mercury minerals; also as a hot spring deposit with realgar, orpiment and cinnabar. It is the chief source of commercial antimony. It is widely distributed, but does not usually occur in large deposits. quartznall.co.uk /learnstibnite.htm   (339 words)

FRICTION, Friction The company recognises the unique demands and specifications required by the world’s leading friction companies and is constantly carrying out research and development on new and innovative products. Lead Sulphide is produced from the highest quality galena with several lead compositions and formulations. Heavy Metal Sulphide Replacements are manufactured in compound form as alternatives to lead and antimony. www.hoben.co.uk /friction   (183 words)

Glossary of terms used in the work-diaries of Robert Boyle   (Site not responding. Last check: 2007-10-30) white crystalline antimony trichloride, made by dissolving antimony trisulphide (the native form of the antimony ore) in hydrochloric acid and distilling it, or by distilling a mixture of the antimony ore with corrosive sublimate (mercuric chloride) any sublimate prepared from antimony trisulphide (the native ore), these flowers are generally white when the sublimation is carried out in the air (antimony oxides), but sometimes red or fl (antimony sulphides) when the sublimation is done in closed vessels a solvent developed by Boyle himself, made by distilling aqua fortis with butter of antimony (antimony trichlordie); Boyle claimed that it could volatilise gold and transmute a portion of that metal into silver. www.bbk.ac.uk /~ubra110/Glossary.xml   (3903 words)

Antimony History Antimony is found in over 100 minerals, most of which are quite scarce. By far the commonest is stibnite, the primary sulphide, which has the formula Sb Bristol City Museum and Art Gallery has a fascinating mineral section, with a sample of native antimony, and three very different, stunning examples of stibnte, showing its needle-like crystals. A summary of some of the main minerals in which antimony can be found is given below. www.chm.bris.ac.uk /webprojects2004/tabor/minerals.html   (163 words)

sulphide - OneLook Dictionary Search Sulphide : Online Plain Text English Dictionary [home, info] Sulphide : Glossary of Glassmaking Terms [home, info] Phrases that include sulphide: cadmium sulphide, antimony sulphide, arsenic sulphide, copper sulphide, double sulphide, more... www.onelook.com /?w=sulphide   (172 words)

Chemistry : Periodic Table : antimony : compounds information For each compound, a formal oxidation number for antimony is given, but the usefulness of this number is limited 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. In compounds of antimony (where known), the most common oxidation numbers of antimony are: 5, 3, and -3. www.webelements.com /webelements/elements/text/Sb/comp.html   (226 words)

Antimony Pentasulphide,Antimony Pentasulfide,Antimony Pentasulfide Chemicals,Antimony Penta Sulphide,Pentasulfide ... Antimony Pentasulphide,Antimony Pentasulfide,Antimony Pentasulfide Chemicals,Antimony Penta Sulphide,Pentasulfide Industrial Chemicals,Pentasulfide Chemicals Manufacturers Antimony Pentasulphide Orange (CAS No. : 1345 - 04 - 4) Nothing contained herein is intended as a recommendation to use our products so as to infringe any patents. www.chemicochemicals.com /antimony-pentasulphide.html   (114 words)

Antimony Tri Sulphide manufactured by Orion Chem Pvt Ltd Antimony Tri Sulphide manufactured by Orion Chem Pvt Ltd Black lumps or crystalline powder free from visible impurities and foreign matter. Antimony Tri Sulphide It is manufactured in both fl lumps and powder forms. www.orionchem.com /antimony_tris_ulphate.htm   (59 words)

Iron Sulphide, Iron Sulphide Manufacturers Suppliers Exporters Engaged in manufacture and supply of Iron Sulphide, sodium bromide, Iron Sulphide, zinc sulphate, potassium bromide, dipotassium phosphate, tri sodium phosphate and phase change materials. Exporters of sodium sulphate 99%/80%, fine and kores, sodium Sulphide red 95%/solid/flks, sodium Sulphide Iron free yellow flks, sodium sulphite 96% photo/tec,ammonium metavadate, solvents of all types. Manufacturers of antimony tri chloride, anitmony tri oxide, antimony penta Sulphide, antimony tri Sulphide, antimony metal power, antimony tir Sulphide lumps, zinc Sulphide(zns), Iron sulplhide. www.indianindustry.com /industrialchemicals/5803.html   (256 words)

Ingredient Details - Weleda, Inc. Used homeopathically for stomach disorders, such as hearburn, nausea, vomiting, burning pain, tension and pressure in the pit of the stomach (see A Dictionary of Practical Materia Medica by John Clarke, MD, 3rd ed. Sulphide of antimony (Atimonium crudum) is used in the following products: The quality of the soil, seed and plant reflects the quality of our finished product. usa.weleda.com /ingredients/ingredient.asp?id=372   (94 words)

Try your search on: Qwika (all wikis)

About us   |   Why use us?   |   Reviews   |   Press   |   Contact us   Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.