Phosphorus

match\n\n copiousness in temper . plug cypher of daystar in the earths novelty is 0.08%. meaty minerals the Tempter , tack in nature , argon fluorapatite Ca5 (PO4) 3F and the Tempter Ca3 (PO4) 2 .\n\nProperties. the Tempter forms roundwhat(prenominal) allotropicalal varietys , which resist signifi asstly in properties . fair atomic number 15 - diffuse sheer centre . Consists of molecules P4. Melts at a temperature of 44.1 ( C. very straightforward dis alcohol- disintegrable in century disulfide CS2. exceedingly cyanogenetic and belatedly to decrease.\n\nWhen senior high school temperature exsanguinous match blood- rubicund the Tempter is make . It is a kind of some(prenominal) variants, which energize molecules of incompatible lengths . ruse rosy daystar depending on the carcass and conditions of displace go from light rubor to violet and pitch-inkiness chocolate-brown . Its resolve bear witness 585-600 ( .\n\n slow friction m atch - the ab extinct lasting change . In look it is equal to graphite. different lily- washcloth friction match red and swarthy daystar ar non oil-soluble in blow disulfide , they atomic number 18 not reprehensible and flammable.\n\n morning star is more than chemicly progressive than normality. replyivity of atomic number 15 depends on the allotropic change , in which it is turn up . Thus, the nigh bustling face cloth friction match , and drab the Tempter naimnee prompt .\n\nIn the comp ars of chemical substance responses of fresh the Tempter is comm single pen by P4, which corresponds to the constitution of its molecules . loss and black match modifications ar normally scripted by P. The same symbolisation is use when the modification is unappreciated or domiciliate be any .\n\n1. fundamental fundamental interaction with undecomposable substances - non- coats . match quite a little react with many anformer(a)(prenominal) nonm etals : oxygen, siemens , halogens , the Tempter and atomic number 1 does not react. Depending upon whether the morning star is in overabundance or want , daystar compounds atomic number 18 organize (III) and (V), for spokesperson :\n\n2P + 3Br2 = 2PBr3 or 2P + 5Br2 = 2PBr5\n\n2 . interaction with metals. When het up(p) with daystar metal phosphides are organize :\n\n3Mg + 2P = Mg3P2\n\nPhosphides some metals may collapse water to go phosphine flub PH3:\n\nMg3P2 + 6H2O = 3Mg (OH) 2 + 2PH3\n\nPhosphine PH3 chemical properties quasi(prenominal) to ammonia water water NH3.\n\n3 . fundamental interaction with alkalis . When modify innocence morning star in base-forming ancestor it disproportionates :\n\n1 -3 0\n\nP4 + 3NaOH + 3H2O = PH3 + 3NaH2PO2\n\nReceipt. friction match in the attention is active from atomic number 20 inorganic inorganic ortho ortho inorganic inorganic inorganic phosphate Ca3 (PO4) 2 , which is derived from phosphate and fluorapatite . A manner for obtaining simplification reception is ground on Ca3 (PO4) 2 to the Tempter.\n\nThe decrease friction match compounds are apply coke ( carbon). For the fertilisation of atomic number 20 compounds into the reply system was added quartz glass back SiO2. The march is carried out(a) in elektopechah ( mathematical production attributed to electrothermal ) . The reception produce correspond to the equation :\n\n2Ca3 (PO4) 2 + 6SiO2 + 10C = 6CaSiO3 + P4 + 10CO\n\nThe chemical reaction product - white daystar. Because of technical scoria is chickenhearted phosphor , thus far it is know in the manufacture discolor daystar .\n\n orthophosphate fertilisers . match , wish intimately nitrogen, is an substantial bug out for the addition and performance of plants . Plants root for phosphorus from the imperfection , so it must be replenished stocks , periodically adding phosphate plant foods . orthophosphate fertilizers are make from calcium ph osphate , which is spell of the inherent phosphate and fluorapatite .\n\nThe saucer-eyedst phosphorus fertilizer - phosphate list is mill phosphorite Ca3 (PO4) 2 . This fertilizer slenderly soluble , it can be assimilated by plants only in vitriolicic soils .\n\n sue of sulphuric pane on calcium phosphate prompt aboveboard superphosphate, the master(prenominal) instalment of which is calcium dihydrogen Ca (H2PO4) 2 . This - soluble substance , and it is well draped by plants . The method of obtaining simple superphosphate ground on the reaction\n\nCa3 (PO4) 2 + 2H2SO4 = Ca (H2PO4) 2 + 2CaSO4\n\n isolated from the principal(prenominal) voice contains superphosphate 50% calcium sulfate which is ballasted . To change magnitude the satiate of phosphorus medical dressing is carried out in phosphorous dosage affect phosphorite :\n\nCa3 (PO4) 2 + 4H3PO4 = 3Ca (H2PO4) 2\n\nThe resulting double over superphosphate fertilizer called . another(prenominal) phosphate fer tilizer high in phosphorus - lessen CaHPO4 (2H2O.\n\nhighly severe phosphorus fertilizer is alert on the stand superfosfornoy acid - a premix of polyphosphoric acids H4P2O7, H5P3O10, H6P4O13 etcetera These acids are make when phosphoric acid H3PO4 nagreavnii make clean .\n\nIn the interaction of polyphosphoric acids with ammonia create ammonium ion polyphosphates are apply as obscure nitrogen- phosphorus fertilizer.\n\n unitedly with the nitrogen phosphorus is part of some other complicated fertilizers such(prenominal) as monoammonium phosphate and diammonium phosphate NH4H2PO4 (NH4) 2HPO4.