Khoom Zoo thiab Kev Nyab Xeeb Cov Qauv ntawm Sodium Cyanide

Sodium cyanide (NaCN) yog ib hom tshuaj lom neeg uas muaj tshuaj lom heev thiab siv tau dav hauv ntau yam lag luam, xws li kev rho kub hauv kev khawb av, electroplating, thiab kev tsim tshuaj lom neeg. Vim nws muaj tshuaj lom heev, yuav tsum ua raws li cov qauv zoo thiab kev nyab xeeb thoob plaws txhua theem ntawm Sodium cyanide , suav nrog kev tsim khoom, kev khaws cia, kev thauj mus los, thiab kev siv. Tsab xov xwm no yuav tshawb nrhiav kom meej txog cov qauv zoo thiab kev nyab xeeb ntawm Sodium Cyanide.

I. Yam Khoom Zoo

1. Purity Requirements

• Kev Lag Luam - Qib Khoom Sodium Cyanide Khoom : Raws li cov qauv hauv tebchaws thiab thoob ntiaj teb (xws li tus qauv hauv Suav teb), qhov huv ntawm cov khoom sodium cyanide khoom rau kev siv hauv kev lag luam muaj ntau qib sib txawv. Piv txwv li, cov ntsiab lus ntawm cov khoom qib siab tshaj plaws yuav tsum ncav cuag 98.0% lossis siab dua, thaum cov khoom tsim nyog yuav tsum muaj tsawg kawg 87.0%. Cov sodium cyanide huv siab yog qhov tseem ceeb rau kev lag luam xws li kev rho kub. Hauv cov txheej txheem khawb kub, cov sodium cyanide huv siab dua tuaj yeem ua rau muaj kev cuam tshuam zoo dua nrog cov hlau uas muaj kub, txhim kho qhov nrawm ntawm kev rho tawm thiab txo cov khoom tsis huv tsis tsim nyog hauv cov txheej txheem sib cais tom qab.

• Cov Tshuaj Sodium Cyanide Qib Kev Lag Luam : Rau cov tshuaj sodium cyanide, qhov kev sib xyaw kuj yuav tsum ua tau raws li cov qauv tshwj xeeb. Feem ntau, qhov kev sib xyaw ntawm sodium cyanide hauv cov tshuaj tau txhais meej meej raws li cov xwm txheej siv sib txawv. Cov tshuaj yuav tsum yog cov kua dej ntshiab, tsis muaj xim lossis daj me ntsis uas tsis muaj cov khoom tsis huv pom.

2. Kev tswj tsis huv

• Cov Khoom Uas Tsis Muaj Organic :

• Cov Khoom Siv Carbonate : Cov sodium Carbonate uas muaj nyob hauv sodium cyanide raug tswj hwm nruj heev. Hauv cov khoom siv sodium cyanide khov kho, cov sodium carbonate uas muaj nyob rau ntau qib sib txawv raug tswj hwm. Piv txwv li, cov khoom zoo tshaj plaws yuav tsum tsis pub tshaj 0.5%, cov khoom zoo tshaj plaws yuav tsum tsis pub tshaj 2.0%, thiab cov khoom tsim nyog yuav tsum tsis pub tshaj 3.0%. Cov carbonate ntau dhau yuav cuam tshuam rau kev ua haujlwm ntawm qee cov txheej txheem tshuaj lom neeg. Piv txwv li, hauv kev siv electroplating, nws yuav cuam tshuam rau kev tso cov hlau ions, ua rau muaj txheej electroplated tsis sib xws.

• Cov Khoom Muaj Hydroxide : Cov ntsiab lus ntawm sodium hydroxide kuj muaj cov kev txwv sib xws. Hauv cov khoom khov sodium cyanide, cov ntsiab lus ntawm sodium hydroxide hauv ntau qib sib txawv. Piv txwv li, hauv cov khoom zoo tshaj plaws, nws yuav tsum tsis pub ntau tshaj 0.5%, hauv cov khoom zoo tshaj plaws, tsis pub ntau tshaj 1.0%, thiab hauv cov khoom tsim nyog, tsis pub ntau tshaj 1.5%. Cov sodium hydroxide ntau tuaj yeem hloov pauv tus nqi pH ntawm lub cev tiv thaiv, uas tsis zoo rau kev nce qib ib txwm ntawm qee cov tshuaj tiv thaiv uas xav tau pH ntau yam.

• Cov Khoom Uas Tsis Muaj Organic : Cov khoom uas tsis muaj organic xws li formate yuav tsum tau tswj hwm nruj me ntsis. Txawm hais tias cov ntsiab lus tso cai tsawg heev, formate ntau dhau tuaj yeem cuam tshuam rau qee cov tshuaj lom neeg. Piv txwv li, hauv qee cov tshuaj lom neeg synthesis, formate yuav koom nrog cov tshuaj tiv thaiv sab, txo cov txiaj ntsig thiab kev ntshiab ntawm cov khoom lag luam.

3. Lub cev muaj zog

• Khoom Sodium Cyanide Khoom : Khoom sodium cyanide khoom yuav tsum yog cov pob dawb lossis me ntsis xim lossis cov khoom siv lead ua. Nws qhov tsos yog ib qho cim tseem ceeb ntawm qhov zoo ntawm cov khoom. Kev hloov pauv ntawm cov xim lossis cov khoom me me yuav qhia txog teeb meem xws li kev ua qias tuaj lossis cov txheej txheem tsim khoom tsis raug.

• Cov Tshuaj Sodium Cyanide : Cov tshuaj yuav tsum pob tshab, tsis muaj qhov turbidity lossis nag. Qhov turbidity lossis nag yuav yog ib qho cim ntawm cov tshuaj lom neeg hauv cov tshuaj, xws li kev tsim cov ntsev tsis yaj vim yog cov tshuaj lom neeg hauv huab cua lossis cov khoom siv hauv thawv, uas yuav cuam tshuam rau kev ua haujlwm ntawm cov tshuaj hauv kev siv.

II. Cov qauv kev nyab xeeb

1. Kev Ua Raws Cai

• Cov Cai Lij Choj Hauv Tebchaws thiab Thoob Ntiaj Teb :

• Hauv Tebchaws Meskas : Lub Chaw Haujlwm Saib Xyuas Kev Nyab Xeeb thiab Kev Noj Qab Haus Huv (OSHA) tau teeb tsa cov qauv nruj txog cov kev txwv kev raug tshuaj lom thiab cov txheej txheem kev nyab xeeb rau kev siv cyanides . Piv txwv li, qhov kev txwv kev raug tshuaj lom cyanide uas tso cai rau hauv huab cua hauv chaw ua haujlwm tau teeb tsa los tiv thaiv cov neeg ua haujlwm kom tsis txhob raug tshuaj lom ntau dhau.

• Hauv European Union : Txoj cai REACH (Kev Sau Npe, Kev Ntsuam Xyuas, Kev Tso Cai thiab Kev Txwv Tsis Pub Siv Cov Tshuaj Lom Zem) tswj hwm kev siv cov tshuaj lom neeg xws li sodium cyanide kom muaj kev nyab xeeb. Nws yuav tsum kom cov tuam txhab sau npe thiab muab cov ntaub ntawv qhia txog cov khoom, kev siv, thiab kev ntsuas kev nyab xeeb ntsig txog sodium cyanide.

• Hauv Suav Teb : "Cov Cai Tswjfwm Kev Nyab Xeeb ntawm Cov Tshuaj Lom Zem" tsim kev tswj hwm nruj rau txhua yam ntawm kev siv sodium cyanide, suav nrog kev tsim khoom, kev khaws cia, kev thauj mus los, thiab kev siv. Cov lag luam yuav tsum ua raws li cov cai no kom ntseeg tau tias muaj kev nyab xeeb ntawm cov neeg ua haujlwm thiab ib puag ncig.

• Daim Ntawv Tso Cai thiab Daim Ntawv Tso Cai : Txhua lub koom haum uas koom nrog kev tsim khoom, khaws cia, thauj mus los, lossis siv sodium cyanide yuav tsum tau txais daim ntawv tso cai thiab daim ntawv tso cai tsim nyog raws li cov cai hauv zos. Cov ntawv tso cai no tau muab raws li kev tshuaj xyuas nruj ntawm cov chaw thiab kev ua haujlwm kom ntseeg tau tias lawv ua tau raws li cov qauv kev nyab xeeb thiab kev tiv thaiv ib puag ncig.

2. Kev ceev faj txog kev nyab xeeb nyob rau theem sib txawv

• Kev Khaws Cia :

• Kev Xaiv Qhov Chaw : Sodium cyanide yuav tsum khaws cia rau hauv ib qho chaw tshwj xeeb, muaj cua nkag tau zoo, thiab txias. Qhov chaw khaws cia yuav tsum nyob deb ntawm cov chaw kub, cov chaw ua kom kub hnyiab, thiab cov tshuaj tsis sib haum. Nws kuj tseem yuav tsum nyob rau hauv ib cheeb tsam uas cov neeg ua haujlwm tsis tau tso cai nkag mus tau yooj yim. Piv txwv li, kev khaws cia sodium cyanide ze ntawm cov kua qaub yog qhov txaus ntshai heev vim nws tuaj yeem tsim cov roj hydrogen cyanide uas muaj tshuaj lom thiab yooj yim hlawv.

• Cov Kev Cai Rau Lub Thawv : Siv cov thawv uas tiv taus xeb thiab kaw ruaj khov. Rau cov khoom khov sodium cyanide, feem ntau siv cov nruas hlau tuab lossis cov thawv yas uas muaj hau ruaj ntseg. Rau cov kua sodium cyanide, cov thoob cia khoom yuav tsum ua los ntawm cov khoom siv uas tiv taus alkaline corrosion, xws li qee qib ntawm cov hlau tsis xeb lossis cov thoob yas tshwj xeeb. Txhua lub thoob yuav tsum tau sau meej meej nrog "tshuaj lom" thiab "sodium cyanide," nrog rau cov cim phom sij.

• Cov Cai Khaws Cia : Qhov chaw khaws cia yuav tsum khaws cia kom qhuav, vim tias cov dej noo tuaj yeem ua rau sodium cyanide puas tsuaj sai dua thiab ua rau muaj kev pheej hmoo ntawm cov pa roj hydrogen cyanide. Feem ntau, cov dej noo hauv qhov chaw khaws cia yuav tsum khaws cia kom qis dua 80%. Kev ua pa zoo kuj tseem ceeb heev kom tiv thaiv kev sib sau ua ke ntawm cov pa roj uas yuav xau.

• Kev Thauj Mus Los :

• Kev Ntim Khoom : Lub ntim khoom rau kev thauj sodium cyanide yuav tsum ua tau raws li cov qauv nruj. Lub ntim khoom sab nraud yuav tsum ruaj khov txaus kom tiv taus kev tuav ib txwm thaum thauj mus los thiab tiv thaiv lub thawv sab hauv kom tsis txhob puas. Lub thawv sab hauv yuav tsum tsis txhob xau thiab kaw ruaj khov. Lub ntim khoom kuj tseem yuav tsum muaj daim ntawv lo rau lub npe ntawm cov tshuaj, cov lus ceeb toom txog kev phom sij, thiab cov ntaub ntawv tiv tauj thaum muaj xwm txheej ceev.

• Cov Tsheb Thauj Mus Los : Cov tsheb thauj mus los tshwj xeeb uas tsim los rau kev thauj cov tshuaj lom neeg raug siv. Cov tsheb no yuav tsum tau nruab nrog cov txheej txheem tswj kev nchuav, cov khoom siv teb rau thaum muaj xwm txheej ceev, thiab qhov cua nkag tau zoo. Lawv kuj yuav tsum tso cov cim ceeb toom txog kev phom sij raws li cov cai ntawm kev thauj mus los xav tau.

• Kev Kawm Tsav Tsheb : Cov tsav tsheb thauj sodium cyanide yuav tsum tau kawm tshwj xeeb txog kev tuav cov khoom phom sij. Lawv yuav tsum paub txog cov yam ntxwv ntawm sodium cyanide, cov txheej txheem teb thaum muaj xwm txheej ceev yog tias muaj kev nchuav lossis xwm txheej, thiab cov cai thauj mus los.

• Kev Npaj Txoj Kev : Yuav tsum npaj txoj kev thauj mus los ua ntej kom tsis txhob muaj neeg coob coob, thaj chaw nyob, thiab thaj chaw uas muaj kev pheej hmoo siab ntawm kev raug xwm txheej. Cov tub ceev xwm hauv zos yuav tsum tau ceeb toom txog kev thauj mus los ntawm sodium cyanide, tshwj xeeb tshaj yog thaum hla dhau thaj chaw rhiab heev.

• Kev Siv thiab Kev Siv :

• Cov Khoom Siv Tiv Thaiv Tus Kheej (PPE) :

• Kev Tiv Thaiv Kev Ua Pa : Cov neeg ua haujlwm yuav tsum hnav cov khoom tiv thaiv kev ua pa kom zoo. Hauv cov xwm txheej ib txwm muaj, yuav tsum muaj lub tshuab ua pa puv ntsej muag nrog lub lim cua ua haujlwm zoo thiab lub thawv uas tau pom zoo rau kev tiv thaiv cyanide. Hauv cov chaw muaj kev pheej hmoo siab lossis yog tias muaj kev phom sij loj, tej zaum yuav tsum muaj cov khoom siv ua pa uas muaj peev xwm ua tau.

• Kev Tiv Thaiv Qhov Muag : Yuav tsum hnav cov tsom iav uas tiv taus tshuaj lom neeg lossis lub ntsej muag tiv thaiv kom tiv thaiv qhov muag ntawm cov dej txaws lossis cov hmoov av ntawm sodium cyanide.

• Kev Tiv Thaiv Tawv Nqaij : Yuav tsum siv cov hnab looj tes uas tsis nkag tau los ntawm cov khoom siv xws li roj hmab butyl lossis nitrile, nrog rau cov khaub ncaws tiv taus tshuaj lom neeg lossis cov ris tsho aprons,. Nws yog ib qho tseem ceeb kom ntseeg tau tias PPE zoo thiab haum zoo.

• Kev Teeb tsa Thaj Chaw Ua Haujlwm :

• Kev Cua : Thaj chaw ua haujlwm uas siv sodium cyanide yuav tsum muaj cua zoo heev. Yuav tsum tau teeb tsa cov tshuab cua tso pa tawm hauv zos kom ntes tau cov pa phem lossis cov hmoov av uas tsim tawm thaum lub sijhawm siv. Qhov no pab txo qhov kev sib sau ua ke ntawm cov tshuaj lom neeg hauv huab cua thiab tiv thaiv kev noj qab haus huv ntawm cov neeg ua haujlwm.

• Cov Khoom Siv Thaum Muaj Xwm Ceev : Thaj chaw ua haujlwm yuav tsum muaj cov khoom siv thaum muaj xwm ceev xws li chaw ntxuav qhov muag thiab chav da dej kom huv si. Yog tias muaj kev sib cuag nrog sodium cyanide, cov neeg ua haujlwm tuaj yeem yaug qhov chaw raug mob sai sai kom txo qhov kev puas tsuaj.

3. Kev Tiv Thaiv Thaum Muaj Xwm Ceev thiab pov tseg

• Cov Phiaj Xwm Ceev : Cov lag luam uas siv sodium cyanide yuav tsum tsim cov phiaj xwm ceev kom tiav. Cov phiaj xwm no yuav tsum suav nrog cov txheej txheem rau kev daws teeb meem nrog kev nchuav, kev xau, hluav taws, thiab kev raug xwm txheej tsis tau xav txog. Yuav tsum tau ua cov kev cob qhia xwm txheej ceev tsis tu ncua kom ntseeg tau tias cov neeg ua haujlwm paub txog cov txheej txheem teb.

• Kev Teb Thaum Muaj Tshuaj Nchuav Thiab Xaus : Yog tias muaj tshuaj sodium cyanide nchuav lossis xaus, yuav tsum tau ua tam sim ntawd. Yuav tsum kaw thaj chaw ntawd, thiab cov neeg ua haujlwm tsis raug cai yuav tsum tau tsiv tawm. Cov neeg ua haujlwm uas tau kawm hnav PPE tsim nyog yuav tsum siv cov khoom nqus dej kom tswj tau qhov nchuav. Yuav tsum khaws cov tshuaj sodium cyanide uas nchuav thiab pov tseg kom raug raws li cov cai.

• Kev Tiv Thaiv Hluav Taws : Vim tias sodium cyanide tuaj yeem tsim cov pa roj hydrogen cyanide lom heev thaum raug hluav taws, cov neeg tua hluav taws yuav tsum muaj cov khoom siv tiv thaiv kev ua pa thiab cov khoom siv tua hluav taws. Cov tshuaj tua hluav taws hmoov qhuav, dej, xuab zeb, lossis hmoov qhuav tuaj yeem siv los tua hluav taws, tab sis yuav tsum ceev faj kom tiv thaiv kev kis cov tshuaj lom.

• Kev Pov Tseg Pov Tseg : Cov khib nyiab uas muaj sodium cyanide yuav tsum tau pov tseg kom raug. Yuav tsum tsis txhob muab tso rau hauv ib puag ncig yam tsis tau kho. Cov txheej txheem kho yuav suav nrog kev ua kom cov tshuaj lom lossis lwm cov txheej txheem uas tau pom zoo los hloov cov tshuaj lom cyanide mus ua cov tshuaj uas tsis muaj kev phom sij ua ntej pov tseg.

Hauv kev xaus, cov khoom lag luam zoo thiab cov qauv kev nyab xeeb ntawm sodium cyanide yog qhov tseem ceeb tshaj plaws los xyuas kom muaj kev nyab xeeb thiab ua haujlwm zoo ntawm kev lag luam uas siv cov tshuaj lom neeg no. Los ntawm kev ua raws li cov qauv no nruj me ntsis, peb tuaj yeem tiv thaiv tib neeg kev noj qab haus huv, ib puag ncig, thiab kev ua tiav ntawm kev tsim khoom lag luam.