आस्मियम

asmiyam plaitinam samooh ki chhah dhatuoan mean se ek hai aur in sabase adhik dushprapy hai. isako sabase pahale tenaant ne 1804 mean asmiiridiyam se prapt kiya. asmiiridiyam ko sodiyam kloraid ke sath klorin gais ki dhara mean pighalane par asmiyam tetrakloraid (asaklae4) banata hai jo u dakar ek jagah ekatr ho jata hai. isaki amoniyam kloraid ke sath pratikriya karane par (naha4)2 asaklo6 ban jata hai, jisako vayu ki anupasthiti mean tapt karane par asmiyam dhatu prapt hoti hai (sanket asOs; paramanubhar 190; paramanusankhya 76).

isake mukhy praptisthan roos, tesameniya tatha dakshin aphrika haian. yah jnat padarthoan mean sabase bhari hai. isaka apekshik ghanatv 22.5 hai tatha yah 2700° sean. par pighalati hai. yah atyant kathor dhatu hai aur vikar ki kathorata ki nam ke anusar isaki kathorata lagabhag 400 hai. isaki vidyutiy vishisht pratirodhakata 8.8 hai. shuddh dhatu n garm avastha mean aur n thandi mean vyavaharayogy hai. hava mean garm karane par isaka u danashil aksaid asau4 ban jata hai. is dhatu par kisi avakarak aml ka koee prabhav nahian hota tatha amlaraj bhi sadharan tap par isapar koee pratikriya nahian karata. yah plaitinam, iridiyam tatha rutheniyam dhatuoan ke sath b di sugamata se mishradhatu bana leti hai jo atyadhik kathor hoti hai. isako plaitinam mean ath pratishat tak milakar kam mean laya ja sakata hai. in mishranoan se vastuean choorn dhatukarmiki (paudar metalarji) ki ritiyoan se nirmit ki jati haian. asmiyam ki sanyojakata 2, 3, 4, 6, tatha 8 hoti hai. isake yaugik asaklo3klo4,asaklo6 tatha asaklo8 banae ja sakate haian. asau4 bahut hi u danashil tatha vishakt padarth hai.

yah dhatu sarvapratham sadharan vidyuth‌ balboan (inakaiandiseant ilektrik balboan) mean prayukt ki gee, parantu yah bahut hi moolyavanh‌ thi aur isase ek vashp nikalata tha. isalie shighr hi isaki jagah sasti aur adhik labhadayak dhatuoan ka upayog hone laga. ati sookshm vibhajit dhatu utprerak ka kam karati hai. as aur is dhatu ka sabase mahatvapoorn yaugik hai. yah autik abhiranjak (histol aaujikal sten) ke tatha uangali ki chhap lene ke kam ata hai. parakloret ki upasthiti mean klaret ko nikalane mean bhi isaka prayog hota hai. is dhatu ka upayog sabase kathor mishradhatuoan ke banane mean hota hai. ye mishradhatuean bahumooly aujaroan ke bharu (beyariang) banane mean aur asmiyam-iridiyam mishradhatu phauantenapen ki nib banane mean kam ati hai.

sanbandhit lekh

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