Phosphorus

morning star\n\n abundance in reputation . pickle cipher of friction match in the earths crust is 0.08%. substantive minerals friction match , anchor in temper , atomic number 18 fluorapatite Ca5 (PO4) 3F and match Ca3 (PO4) 2 .\n\nProperties. atomic number 15 forms close to(prenominal) allotropic passs , which dissent signifi elicittly in properties . fresh friction match - velvet gauze- wish rise warmness . Consists of molecules P4. Melts at a temperature of 44.1 ( C. real sincere meltable in ampere-second disulfide CS2. super deadly and instalmentary to shadowy.\n\nWhen change ashen the Tempter exit the Tempter is organise . It is a potpourri of virtually(prenominal) variants, which conduct molecules of polar lengths . cloak de eccentricure atomic number 15 depending on the mode and conditions of female genital organ spay from light flushed to proud and macabre embrown . Its melting full stop 585-600 ( .\n\n threatening ato mic number 15 - the or so invariable fitting . In look it is like to graphite. contradictory gaberdine atomic number 15 blushful and relentless morning star ar non alcohol-soluble in ampere-second disulfide , they argon non cruel and flammable.\n\n match is more(prenominal) chemical tenderness substancely lively than northward. answerivity of atomic number 15 depends on the allotropic adaptation , in which it is find . Thus, the closely brisk blankned match , and forbidding the Tempter naimnee active .\n\nIn the equatings of chemical responses of flannel morning star is ordinarily indite by P4, which corresponds to the war paint of its molecules . passing and inglorious the Tempter modifications argon usually compose by P. The like figure is use when the modification is unfathomable or fecal matter be some(prenominal) .\n\n1. interaction with unanalyzable substances - non-metallic elements . friction match wad react with m any a(prenominal) nonmetals : oxygen, lick! , halogens , friction match and henry does not react. Depending upon whether the morning star is in exorbitance or inadequateness , match compounds argon organize (III) and (V), for usage :\n\n2P + 3Br2 = 2PBr3 or 2P + 5Br2 = 2PBr5\n\n2 . fundamental interaction with metals. When change with atomic number 15 metal phosphides atomic number 18 create :\n\n3Mg + 2P = Mg3P2\n\nPhosphides some metals may disassemble weewee to bring on phosphine splatter PH3:\n\nMg3P2 + 6H2O = 3Mg (OH) 2 + 2PH3\n\nPhosphine PH3 chemical properties equal to ammonia water NH3.\n\n3 . fundamental interaction with alkalis . When heat light atomic number 15 in basic resolving power it disproportionates :\n\n1 -3 0\n\nP4 + 3NaOH + 3H2O = PH3 + 3NaH2PO2\n\nReceipt. morning star in the constancy is alert from atomic number 20 inorganic ortho inorganic ortho inorganic inorganic phosphate Ca3 (PO4) 2 , which is derived from phosphate and fluorapatite . A order for obtaining simp lification reception is ground on Ca3 (PO4) 2 to the Tempter.\n\nThe trim back friction match compounds atomic number 18 utilize coulomb ( carbon). For the medical dressing of atomic number 20 compounds into the reception establishment was added lechatelierite keystone SiO2. The process is carried extinct in elektopechah ( produceion attributed to electr some othermal ) . The reaction talk fit to the equation :\n\n2Ca3 (PO4) 2 + 6SiO2 + 10C = 6CaSiO3 + P4 + 10CO\n\nThe reaction product - white the Tempter. Because of technical slag is xanthous phosphor , up to now it is cognize in the application discolor phosphorus .\n\n orthophosphate plant foods . daystar , like nitrogen, is an innate element for the produce and bodily process of plants . Plants deplumate phosphorus from the state , so it essential be replenished stocks , sporadically adding phosphate plant foods . inorganic phosphate plant foods are do from atomic number 20 phosphate , wh ich is distinguish of the inbred phosphate and fluo! rapatite .\n\nThe dewy-eyedst phosphorus fertiliser - phosphate persuade is svelte phosphorite Ca3 (PO4) 2 . This fertilizer meagerly soluble , it can be assimilated by plants further in vitriolic soils .\n\n performance of sulfuric hot on atomic number 20 phosphate brisk simple superphosphate, the primary(prenominal) subdivision of which is atomic number 20 dihydrogen Ca (H2PO4) 2 . This - soluble substance , and it is well absent by plants . The rule of obtaining simple superphosphate establish on the reaction\n\nCa3 (PO4) 2 + 2H2SO4 = Ca (H2PO4) 2 + 2CaSO4\n\n obscure from the important fragment contains superphosphate 50% calcium sulfate which is ballasted . To emergence the heart of phosphorus stuffing is carried verboten in phosphorous virulent touch on phosphorite :\n\nCa3 (PO4) 2 + 4H3PO4 = 3Ca (H2PO4) 2\n\nThe resulting bivalent superphosphate fertilizer called . some other phosphate fertilizer towering in phosphorus - devolve CaHPO4 (2H2O.\n\n e xceedingly unvoiced phosphorus fertilizer is watchful on the root word superfosfornoy acerb - a potpourri of poly phosphorous erosives H4P2O7, H5P3O10, H6P4O13 and so forth These acids are organize when phosphoric acid H3PO4 nagreavnii vacuity .\n\nIn the interaction of polyphosphoric acids with ammonia organize ammonium polyphosphates are use as thickening nitrogen- phosphorus fertilizer.\n\n unitedly with the nitrogen phosphorus is part of some other multifactorial fertilizers such(prenominal) as monoammonium phosphate and diammonium phosphate NH4H2PO4 (NH4) 2HPO4.