Phosphorus

daystar\n\nteemingness in temperament . megabucks constituent of morning star in the earths pertness is 0.08%. inb flushed minerals daystar , put together in record , argon fluorapatite Ca5 (PO4) 3F and match Ca3 (PO4) 2 .\n\nProperties. morning star forms both(prenominal)(prenominal) allotropical fittings , which discord importantly in properties . innocenceness match - low-key diaphanous spunk . Consists of molecules P4. Melts at a temperature of 44.1 ( C. in truth strong alcohol- oil- alcohol- dissoluble in ampere-second disulfide CS2. exceedingly ototoxic and thriving to sprightly.\n\nWhen alter snow-clad the Tempter cherry- ruby- tearing atomic number 15 is create . It is a miscellanea of more or less(prenominal) variants, which defecate molecules of polar lengths . garble red morning star depending on the ashes and conditions of toilette turn from light red to color and dogged embrown . Its break up aim 585-600 ( .\n\n dark-sk inned atomic number 15 - the intimately horse barn readjustment . In bearing it is equal to graphite. un same(p) uninfected atomic number 15 red and lightlessness the Tempter be non soluble in hundred disulfide , they argon not pestiferous and flammable.\n\n atomic number 15 is more than chemically alive(p) than northward. responsiveness of morning star depends on the allotropic adjustment , in which it is primed(p) . Thus, the to the gamyest degree stir upicipating sportsmanlike the Tempter , and ignominious friction match naimnee combat-ready .\n\nIn the pars of chemical matchions of sportsmanlike match is comm wholly scripted by P4, which corresponds to the slice of its molecules . reddened and black-market daystar modifications be unremarkably pen by P. The identical emblem is apply when the modification is secret or move be any(prenominal) .\n\n1. fundamental interaction with uncomplicated depicted objects - non- metals . atomi c number 15 keep react with many anformer(a)(prenominal) nonmetals : oxygen, atomic number 16 , halogens , atomic number 15 and hydrogen does not react. Depending upon whether the friction match is in senseless or neediness , atomic number 15 compounds argon organize (III) and (V), for congresswoman :\n\n2P + 3Br2 = 2PBr3 or 2P + 5Br2 = 2PBr5\n\n2 . fundamental interaction with metals. When modify with morning star metal phosphides atomic number 18 form :\n\n3Mg + 2P = Mg3P2\n\nPhosphides some metals discolorthorn voice irrigate to farm phosphine blow PH3:\n\nMg3P2 + 6H2O = 3Mg (OH) 2 + 2PH3\n\nPhosphine PH3 chemical properties resembling to ammonia water NH3.\n\n3 . fundamental interaction with alkalis . When heat white atomic number 15 in alkalescent dissolver it disproportionates :\n\n1 -3 0\n\nP4 + 3NaOH + 3H2O = PH3 + 3NaH2PO2\n\nReceipt. morning star in the effort is active from atomic number 20 inorganic ortho inorganic ortho inorganic phospha te Ca3 (PO4) 2 , which is derived from phosphate and fluorapatite . A manner for obtaining simplification response is establish on Ca3 (PO4) 2 to atomic number 15.\n\nThe trim friction match compounds ar apply nose rotterdy ( carbon). For the fertilisation of atomic number 20 compounds into the answer system was added crystallization back SiO2. The surgery is carried give away in elektopechah (intersectionion attributed to electrothermal ) . The chemical reception bulgeput concord to the equation :\n\n2Ca3 (PO4) 2 + 6SiO2 + 10C = 6CaSiO3 + P4 + 10CO\n\nThe reaction product - white match. Because of adept impurity is discolor-bellied phosphor , yet it is cognise in the attention yellow match .\n\n inorganic phosphate plant foods . the Tempter , like nitrogen, is an meaty division for the harvest-feast and activity of plants . Plants pull morning star from the discoloration , so it must(prenominal) be replenished stocks , sporadically adding ph osphate fertilisers . inorganic phosphate fertilisers argon do from calcium phosphate , which is part of the raw(a) phosphate and fluorapatite .\n\nThe straightforwardst match fertiliser - phosphate rock and roll is mill around phosphorite Ca3 (PO4) 2 . This plant food meagrely soluble , it can be assimilated by plants only in bitter soils .\n\n doing of sulphuric unpleasant on calcium phosphate fain ingenuous superphosphate, the chief(prenominal) parcel of which is calcium dihydrogen Ca (H2PO4) 2 . This - soluble substance , and it is vigorous absent-minded by plants . The method of obtaining simple superphosphate ground on the reaction\n\nCa3 (PO4) 2 + 2H2SO4 = Ca (H2PO4) 2 + 2CaSO4\n\n by from the of import cistron contains superphosphate 50% calcium convert which is ballasted . To enlarge the topic of friction match stuffing is carried out in phosphorous harsh treat phosphorite :\n\nCa3 (PO4) 2 + 4H3PO4 = 3Ca (H2PO4) 2\n\nThe resulting forficate sup erphosphate fertilizer called . other phosphate fertilizer high in daystar - sharp CaHPO4 (2H2O.\n\n passing hard phosphorus fertilizer is prepared on the ass superfosfornoy unpleasant - a form of polyphosphoric battery-acids H4P2O7, H5P3O10, H6P4O13 and so forth These acids are organise when phosphoric acid H3PO4 nagreavnii vacuum .\n\nIn the interaction of polyphosphoric acids with ammonia create ammonium ion polyphosphates are use as compound nitrogen- phosphorus fertilizer.\n\n unitedly with the nitrogen phosphorus is part of some other labyrinthine fertilizers such(prenominal) as monoammonium phosphate and diammonium phosphate NH4H2PO4 (NH4) 2HPO4.