Sulfuric acid thiab nws siv

Sulfuric acid yog ib qho ntawm feem zoo-paub thiab ntau tshuaj tebchaw. Yog vim li cas yog ib feem ntau nws zoo-txhais zog. Nws mis - H2SO4. Qhov no diacid muaj lub siab oxidation lub xeev ntawm cov leej faj + 6.

Nyob rau hauv tej yam kev mob sulfuric acid yog ib tug ua kua tsis muaj tsw thiab xim, muaj oily yam ntxwv. Nws yog dav kis nyob rau hauv lub kos duab thiab ntau yam industries.

Thaum lub caij, qhov no tshuaj yog ib tug ntawm cov tseem ceeb tshaj plaws thiab feem ntau cov tshuaj thiab tshuaj cov khoom. Nyob rau hauv cov xwm, haiv neeg leej faj deposits nyob tsis yog li ntawd feem ntau raws li ib tug txoj cai, nws yog pom xwb nyob rau hauv lub tebchaw nrog rau lwm cov tshuaj. Nws yog tsim zus tau tej cov ntau yam leej faj tebchaw, xws li ib tug ntau yam uas muaj twj. Nyob rau hauv tej rooj plaub, gases ferrous co yuav tau txais los mus tsim cov leej faj thiab ntau yam tebchaw nyob rau ntawd.

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Sulfuric acid adversely cuam tshuam tej organic compound. Nws yuav siv sij hawm dej los ntawm lawv sai sai heev, yog li ntawd cov ntaub thiab sib txawv tebchaw pib Char. 100% acid yog ib tug ntawm cov muaj zog, cov compound tsis txhob haus luam yeeb thiab tsis txhob ua puas lub ferrous hlau.

Dilute sulfuric acid reacts nrog rau tej co lwm yam tshaj li cov hlau lead. Nyob rau hauv daim ntawv concentrated nws pib oxidize ntau yam.

Kev siv cov sulfuric acid

Mas sulfuric acid yog siv nyob rau hauv lub tshuaj ua lag luam, qhov twg nws yog raws li khoom nitrogen thiab ntsev chiv, xws li superphosphate, uas yog tam sim no pom tias yog ib qho ntawm feem ntau chiv. Txhua xyoo ua mus txog ob peb lab tons ntawm cov tshuaj yeeb dej caw.

Nyob rau hauv metallrugii H2SO4 yog siv los xyuas qhov zoo ntawm cov khoom. Thaum kuav los tiag steel micro-tej kab nrib pleb zaum yuav tshwm sim nyob rau hauv thiaj li yuav ntes lawv, qhov khoom tso rau hauv cov hmoov txhuas da dej thiab etched 25% cov kua ntawm acid. Tom qab hais tias, txawm lub me tshaj tej kab nrib pleb yuav pom nrog tus liab qab qhov muag.

Ua ntej thov kev cov hlau plating nws yog tsim nyog los yav tas los npaj - ntxuav thiab degreased. Txij li thaum lub sulfuric acid reacts nrog hlau, nws yaj nyias txheej, thiab nrog nws tuskheej tej kab mob sib kis ib co kua nplaum. Nyob rau hauv tas li ntawd, cov hlau nto yuav ntxhib, uas yog zoo dua suited rau daim ntawv thov ntawm npib tsib xee, chromium los yog tooj liab plating.

Sulfuric acid yog siv nyob rau hauv qhov kev ntawm ib co ores, nws kuj yog ib tug tseem ceeb npaum li cas yuav tsum tau nyob rau hauv cov roj kev lag luam nyob qhov twg nws yog siv mas rau lub purification ntawm ntau yam khoom. Nws yog feem ntau siv nyob rau hauv lub tshuaj ua lag luam, uas yog lossi evolving. Raws li ib tug tshwm sim, tshwm sim ntxiv tuition thiab daim ntaub ntawv. Qhov no cov ntaub ntawv uas yuav siv tau rau zus tau tej cov lead-acid tam sim no qhov chaw - ntau yam roj teeb.

Kev npaj ntawm sulfuric acid

Lub ntsiab raw khoom rau cov leej faj thiab acids pab ntau yam tebchaw raws li nyob rau hauv nws. Ntxiv mus, raws li twb tau hais, nws yog tsim siv uas muaj nyiab mus ua sulfur. Nyob rau hauv lub oxidative roasting ntawm sulfide ores tso gases muaj SO2. Nws yog nruj heev heev rau tsim sulfuric acid. Txawm tias Russia tseem nyob rau hauv lub ua txoj hauj lwm nyob rau hauv qhuav-raws li ua ntawm pyrite, uas yog hlawv nyob rau hauv furnaces. Thaum huab cua kub tshaj lub pyrites yog tsim ib tug khub ntawm siab SO2. Yuav kom tshem tawm impurities thiab lwm yam vapors electrostatic siv. Tam sim no zus tau tej cov lug siv txawv txoj kev ua acid, thiab ntau yam ntawm lawv yog hais txog nkim tswj, txawm tias ib tug siab kev faib ua feem ntawm cov tshuaj industries.