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METAN

metanMETAN CH4, gazi botloqi, , yak nav karbogidrid. M. gazi suzanda, berangu buy; t jush. – 164,5°S, t gud. – 182,5°S, zichiash nisbat ba havo 0,554 (20°S); hangomi bo havo yakjoya shudan (dar surati ba 5 – 15% rasidani konsentratsiya), omekhtai tarkanda hosil mekunad. M. qismi tarkibi va asosii gazhoi tabii (77 – 99%-i hajmi umumi), gazhoi hamroh bo neft (31 – 90%) va gazhoi kon (34 – 40%) meboshad. Atmosferai baze sayyoraho (Zuhal, Mushtari) asosan az M. iborat ast. M.-i suniro bo rohi korkardi haroratii angisht va neft hosil mekunand. M.-i tabii hangomi pusishi moddahoi organiki zeri tasiri bakteriyaho dar surati narasidani havo paydo meshavad. M. chun suzishvori va ashyo, baroi hosil kardani payvasthoi organiki (atsetilen, khloroform, formaldegid va g.) istifoda meshavad.
Miqdori ziyodi M. baroi organizm khavfnok ast. Alomathoi avvalini zahroludi (tez shudani nabz, nafaskashi, kalavida roh raftan) hangomi 25 – 30% budani miqdori on dar tarkibi havo ba mushohida merasand. Konsentratsiyai beshtari M. dardi sar meorad. Dar konkovho va korgaroni istehsolote, ki dar havoi on M. vujud dorad, ikhtiloli faoliyati silsilai asabhoi vegetativi ba qayd girifta shudaast.
Baroi peshgirii zahroludi az M. toza kardani havoi joi kor, istifodai asbobhoi nafaskashi ahamiyati kalon dorad.

SH. Samiev.

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