Hydrogen sulfide yog ib qho inorganic compound nrog cov tshuaj formula H2S thiab molecular hnyav ntawm 34.076. Nyob rau hauv cov xwm txheej txheem, nws yog ib qho hluav taws kub thiab acidic roj uas tsis muaj xim. Ntawm qhov tsis tshua muaj siab, nws muaj ntxhiab tsw ntawm cov qe lwj, thiab ntawm qhov tsis tshua muaj siab, nws muaj ntxhiab tsw ntawm leej faj. Nws yog tshuaj lom heev. Cov tshuaj aqueous yog hydrosulfuric acid, uas yog qhov tsis muaj zog hauv acidity, tsis muaj zog tshaj carbonic acid tab sis muaj zog tshaj boric acid. Nws yog soluble hauv dej thiab yooj yim soluble hauv cawv, roj av kuab tshuaj thiab roj crude. Hydrogen sulfide yog ib qho tshuaj tua kab mob phom sij. Thaum sib xyaw nrog huab cua, nws tuaj yeem tsim cov khoom tawg. Nws tuaj yeem ua rau combustion thiab tawg thaum raug qhib nplaim taws lossis kub kub.
Qhov kev nyab xeeb concentration ntawm hydrogen sulfide yog 10mg / m ³. Hloov mus rau PPM units, tus nqi tswb qis yog 6.6PPM thiab lub tswb ceeb toom siab yog 13.2PPM. Raws li kev txwv kev ua haujlwm (OEL) rau hydrogen sulfide (H2S) roj tau teev tseg hauv lub teb chaws tus qauv "GBT50493-2019", qhov siab tshaj plaws tso cai yog 10mg / m ³, thiab qhov ncaj qha teeb meem concentration (IDLH) yog 430mg / m ³. Yog li ntawd, thaum siv ib tug hydrogen sulfide detector, thawj - theem (tsawg tshaj qhia) ceeb toom tus nqi ntawm H2S hydrogen sulfide gas concentration yog 6.6ppm, thiab theem thib ob (siab tshaj qhia) tus nqi ceeb toom yog 13.2PPM.
Thawj - theem ceeb toom tus nqi feem ntau yog teem caij nruab nrab ntawm 1.5 thiab 2 npaug ntawm tus nqi ruaj ntseg concentration. Piv txwv li, yog tias qhov kev nyab xeeb concentration yog 5PPM, thawj - qib tswb tus nqi tuaj yeem teem caij nruab nrab ntawm 7.5PPM thiab 10PPM. Thaum qhov concentration ntawm hydrogen sulfide roj tau nce mus txog thawj - theem ceeb toom tus nqi, lub tswb yuav tshaj tawm lub suab nrov thiab pom lub tswb kom ceeb toom rau ntawm - cov neeg ua haujlwm hauv chaw ua haujlwm kom xyuam xim.
Tus nqi tswb thib ob: Feem ntau teeb tsa nruab nrab ntawm ob thiab peb zaug ntawm tus nqi ruaj ntseg concentration. Piv txwv li, yog tias tus nqi muaj kev nyab xeeb yog 5PPM, tus nqi ceeb toom thib ob tuaj yeem teeb tsa ntawm 10PPM thiab 15PPM. Thaum lub concentration ntawm hydrogen sulfide roj mus txog tus nqi tswb thib ob, lub tswb yuav muab lub tswb nrov nrov thiab pom kev thiab yuav ua rau txoj kev khiav tawm thaum muaj xwm ceev.
Peb tsom mus rau kev tshawb fawb thiab kev tsim kho thiab tsim khoom ntawm ntau yam khoom siv ntsuas cua zoo. Peb cov khoom lag luam npog ntau lub tshuab hluav taws xob rau cov pa phem thiab cov pa phem, huab cua, plua plav, suab nrov, dej zoo, thiab lwm yam, thiab peb muab cov kev daws teeb meem tiav. Kev teeb tsa ntawm qhov muaj txiaj ntsig zoo ntawm qhov muaj txiaj ntsig thiab ceeb toom tus nqi ntawm hydrogen sulfide gas detectors yog qhov tseem ceeb rau kev ua kom muaj kev nyab xeeb thiab kev noj qab haus huv ntawm cov neeg ua haujlwm.