Sulfuric acidLub tsev
Tshuaj mis mis rausulfuric acidyog hiceso₄. Nws muaj:
Ob lub hydrogen (h) atoms
Ib tug sulfur (s) atom
Plaub oxygen (o) atoms
Tus qauv ntawm cov sulfuric acid tuaj yeem piav qhia txog hauv qab no:
Cov tub qhe Atom nyob hauv nruab nrab.
Nws ua ib daim ntawv cog lus ob zaug nrog ob cov pa (o) atoms (txhua ntawm cov oxygens no sib sib raug zoo rau cov leej faj).
Tus Sulfur tseem sib raug zoo rau ob pawg hydroxyl (-oh), txhua yam uas muaj cov hydrogen atom thiab ib qho oxygen atom.
Tus qauv yuav pom tau li:
O
||
H-O-S=O
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O
Qhov no qhia tau cov Sulphur atom nyob hauv nruab nrab, ob-sib khi rau ob qho kev sib tw oxygen, thiab txhua qhov tseem tshuav ob daim ntawv cog lus rau ib pab pawg rau ib -h.
PKev qiv nyiaj rauSulfuric acid
Sulfuric acid (hatso₄) yog ib qho xeb zoo thiab ua kom zoo nkauj, thiab tuav nws yuav tsum tau ceev faj kom paub meej. Nov yog qee cov lus qhia kev nyab xeeb tseem ceeb:
1. Cov Khoom Siv Tiv Thaiv Tus Kheej (PPE)
Hnav khaub ncaws tiv thaiv: lub tsho ntev ntev lub tsho tiv no lossis apron los tiv thaiv cov tawv nqaij los ntawm kev sib txig.
Cov hnab looj tes: Siv hnab looj tes acid-resistant, xws li roj hmab lossis neoprene, los tiv thaiv ob txhais tes los ntawm kev tiv tauj.
Kev Tiv Thaiv Qhov Muag: Yuav tsum hnav cov kev nyab xeeb rau kev nyab xeeb lossis lub ntsej muag rau cov ntaub thaiv npog kom tiv thaiv lub qhov muag los ntawm cov kua qaub los ntawm cov kua qaub.
Kev tiv thaiv kev tiv thaiv: yog tias ua haujlwm nyob rau thaj chaw uas muaj qhov cua tsis zoo, hnav daim npog ntsej muag kom tsim nyog lossis ua pa tawm.
2. Tsim Tsa
Khaws rau hauv qhov chaw txias, qhuav: Khaws cov sulfuric acid nyob rau hauv qhov chaw muaj cua zoo ntawm tshav kub lossis ncaj qha tshav ntuj.
Siv cov thawv tsim nyog: khw muag khoom ntim ua los ntawm cov khoom siv corrosion-resistant cov ntaub ntawv xws li iav lossis tshwj xeeb plastics (piv txwv li, polyethylene). Tsis txhob muaj hlau ntim ua sulfuric acid tuaj yeem corrode ntau hlau.
Sau npe rau lub thawv ntim: kom cov thawv ntim tau zoo thiab sau npe thiab muaj cov lus ceeb toom phom sij.
3. Kev tuav thiab dilution
Nco ntsoov ntxiv cov kua qaub rau dej: thaum diluting sulfuric acid, ib txwm ntxiv cov kua qaub, raws li cov dej rov qab los ua rau muaj kev kub ntxhov thiab tawg.
Siv cov lus teb hood: ua rau kev zom zaws lossis tuav cov sulfuric acid nyob rau hauv ib fume hood kom tsis txhob nqus tau pa.
Zam kev tiv tauj ncaj qha: Xyuas kom cov kua qaub tsis tuaj rau hauv kev sib chwv nrog tawv nqaij lossis qhov muag. Yog txeej yog tshwm sim, tshem tawm tam sim ntawd nrog cov dej ntau.