NHểM NIT PHOTPHO (VA) KHI QUT: Mui nitrat: M(NO3)n to Gm: N, P, As, Sb, Bi Cu hỡnh e chung: ns2 np3 -M l Na, K, Ca: M(NO3)n M(NO2)n N cú s oxh: -3, 0, +1, +2, +3, + 4, +5 + O2 to P cú s oxh: -3, 0, +5 P, nc ỏ cú tinh th phõn -M t Mg, Al, Cu: M(NO3)n M2On + t NO2 + O2 to Tớnh axit: HNO3> H3PO4> H3AsO4 - M l Ag, Hg, Au, Pt: M(NO3)n M + NO2 + O2 NIT CTCT NN k thng tr v húa to -M l NH4+ : hc NH4NO3 N2O + o 3000 C 2H2O N2 + O2 2NO , PHOTPHO 2NO + O2 ( 2NO2 Photpho trng: tinh th phõn t P4, d núng chy, (mu nõu) to bc chỏy phỏt quang N2 + 3H2 2NH3 (khớ amoniac cú mựi khai) o t , xt Photpho : cu trỳc polime, trờn 250oC bc chỏy 4NH3 + 5O2 4NO + 6H2O to 4P + 3O2 ( 2P2O3 ; 4P + 5O2 ( 2P2O5 , 3Mg + N2 Mg3N2 (magie nitrua) 2P + 3Cl2 2PCl3 ; 2P + 5Cl2 2PCl5 Mg3N2 + 6H2O 3Mg(OH)2 + to 6P + 5KClO3 3P2O5 2NH3 + 5KCl o P2O5 + 3H2O ( 2H3PO4 t iu ch: NH4NO2 N2 + 2H2O Cho P2O5 vo dd NaOH xy cỏc p/ tựy t l AMONIAC (NH3) khớ mựi khai, tan nhiu mol: nc o P2O5 + 2NaOH + H2O ( 2NaH2PO4 (1) t 2NH3 + 3CuO 3Cu + N2 + 3H2O P2O5 + 4NaOH ( 2Na2HPO4 + H2O (2) 2NH3 + 3Cl2 ( N2 + 6HCl P2O5 + 6NaOH ( 2Na3PO4 + 3H2O (3) xt, t o 4NH3 + 5O2 4NO n Lp t l: + 6H2O NaOH T = T(2 p (1), 2