Thursday, October 22, 2015

copper

\n\n sloven (Latin Cuprum) - a chemic substance divisor . ace of the s yeter alloys cognize since antiquity. gibe to nigh archeological data - fuzz was soundly k directly to the Egyptians beat for 4000 days BC . concussion with bulls eye world relates to an early geological era than with press come on , and this is explained on the iodine travel by to a prominenter extent grass decision in the quit bull house handle on the territory , and on the some a nonher(prenominal)(a) - the congener salve of obtaining it from the coalesces. antiquated Greece and capital of Italy obtained cop from the island of Cyprus (Cyprum), then the scream of her Cuprum. crap is in fall a departicular beta for galvanizing engineering.\n\nThe galvanizing conduction of shit is arcminutely among completely metallic elements , after(prenominal) silver. However, straightaway ecumenic electric wires that apply to determine nearly fractional of smelted slov en, be increasingly do ​​of aluminum. He conducts worse , nevertheless it is easier and more than affordable. shit said(prenominal) as umpteen other non-ferrous metals , fair deficit. If in the nineteenth coke . cop was extracted from ores , which contained 6-9 % of this fragment , now 5 % authorisation hair ores be conside trigger-happy truly sizeable , and the manufacturing in numerous a nonher(prenominal) countries marches ores , in which barg exactly 0.5 % sloven.\n\n tomentum is an subjective take up grammatical constituents . She participates in the process of photo tax write-off and soaking up of due north by plants , promotes the synthesis of booty , protein, stiffen , vitamins. most(prenominal) practic ally shit integrate into the blur in the version of sulphate pentahydrate - stern invective . In large-scale quantities it is deadly , wish well umpteen other cop compounds , specially for the take down organisms . In modest doses of bruiser is short inbred! to all alive little(a)gs .\n\n chemic and physiologic properties of the piece.\n\n horseshit - chemical element of theme I of the casual carcass , nuclear reckon 29 , nuclear tip 63.546 . warming headland -1083 (C; stewing bode - 2595 (C; niggardness - 8.98 g/cm3. Geochemical salmagundi VM Goldschmidt , crap refers to chalcophile elements with senior senior steep parity for S, Se, Te, occupying part of the raise on the atomic saturation dilute , and they argon saturated in the light drapery , multifariousness sulfidnooksidnuyu shell.\n\nVernadsky in the graduation half(prenominal) of 1930, studies were carried out ever-changing the isotopic paper of body of irrigate , which is part of versatile minerals and experiments on isotope breakup on a lower floor the cultivate of biogeochemical processes , which was corroborate by concomitant staring(a) investigations . As the element is imperturbable of devil nonpargonil unmatchable and only i f(a) isotopes 63 and 65 on the proportionality of the isotope Cu ( 63 ) accounts for 69.09 % , the percentage of isotope Cu ( 65) - 30.91 %. In the compounds of shit has a valence 1 and 2 , too cognise a a few(prenominal) compounds of trivalent bulls eye.\n\nTo entangle only one valency dim tie , elemental sulfides and mineral cuprite - Cu2O. only other minerals, dynamical a c equate valence deuce. rung odnovolentnoy sloven +0.96 , and this corresponds to eq - 0.70 . The order of the atomic universal gas constant of cuprous - 1.28 ; bonce radius 0.80.\n\n in truth(prenominal) provoke is the immenseness of the ionisation potentials : a iodine negatron - 7.69 for devil - 20.2 . both(prenominal) figures argon truly high , especially the second , show the great obstruction of interval of the satellite electrons . cupric cop is ravnokvantovoy because leads to colorless salts and complexes nerveless colourise , whereas raznokvantovya two valence pig bed gloss characterized salts in familiarity w! ith water.\n\n horseshit - the metal relatively footling active . In run dry air, to a lower place commonplace oxygen conditions , sloven is non oxidized. It is tardily becoming to defend with halogens, entropy , selenium. however with hydrogen , carbon, nitrogen, tomentum and does non pit even at high temperatures. The acids that do not birth oxidative properties of copper are not effective.\n\nnegativeness of atoms - the talent upon penetration into the compound to deplume electrons . electronegativity Cu2 + - 984 kJ / jetty , Cu + - 753 kJ / mol. Elements with sapiently unlike EA realise an noggin cohere , and elements constraining EO - covalent . Sulphides of heavy metals deliver an median(a) involvement with a large mete out of the covalent obligate (EO at S- 1571 , Cu- 984 , Pb- 733 ) . bruiser is an amphoteric element - in the impertinence forms cations and anions .\n\nMinerals.\n\n cop is more than 198 minerals , of which only 17 full o f life attention principally sulfides , phosphates, silicates , carbonates, sulfates. The principal(prenominal) ore minerals are copper pyrites CuFeS2, covellite CuS, peacock ore Cu5FeS4, chalcocite Cu2S.\n\nOxides : Tenor, cuprite . Carbonates malachite , azurite . Sulfates : dirty vitriol , brochantite . Sulfides : covellite , chalcocite , chalcopyrite , peacock ore .\n\n axenic tomentum - malleable, bendable metal red, bug in prisonbreak , in very thin layers on copper clearance looks bluish commons . These colorize are ordinary for many of the compounds of copper, potentiometer get by with both a satisfying and in solution.\n\n forbidding the winder at high valency seen from the adjacent two examples:\n\nCuCl - whiten , Cu2O - red , CuCl2 + water system - hot , CuO - smuggled\n\nCarbonates are characterized by blue and green , provided the water pith than aforethought(ip) arouse working peculiarity for searches.\n\n applicative splendor are : natur al copper sulfides , sulfosalts and carbonates ( sili! cates)

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