Formic Acid yog dab tsi?
Formic acid, tseem hu ua methanoic acid, yog qhov yooj yim carboxylic acid nrog cov mis molecular CH2O2 thiab cov qauv qauv HCOOH. Nws tus lej CAS yog 64-18-6 thiab nws qhov hnyav molecular yog 46.03. Nyob rau hauv chav tsev kub nws yog ib tug tsis muaj kob kua nrog ib tug ntse, pungent tsw. Nws yog lub npe hu ua ntsaum, vim hais tias cov ntsaum thiab qee cov muv thiab kab ntsig secrete formic acid ua cov tshuaj tiv thaiv.
Formic acid yog tag nrho miscible nrog dej thiab feem ntau polar organic solvents. Nws yog cov kua qaub tsis muaj zog, tab sis cov kev daws teeb meem muaj zog corrosive rau ntawm daim tawv nqaij thiab ntau cov ntaub ntawv.
Puas yog Formic Acid yog cov khoom siv phom sij?
Yog lawm. Formic acid yog cais raws li cov khoom siv phom sij nyob rau hauv kev faib cov tshuaj lom neeg loj. Cov phom sij poob rau hauv peb pawg loj.
Corrosivity
Concentrated formic acid ntawm 85 feem pua thiab saum toj no ua rau mob hnyav rau ntawm daim tawv nqaij thiab ob lub qhov muag, nrog blistering lossis cov ntaub so ntswg puas ntawm kev sib cuag. Nws cov vapors ua rau lub ntsws ua pa thiab cov mucous membranes thiab tuaj yeem ua rau hnoos thiab ua pa nyuaj.
Mob toxicity
Formic acid muaj teeb meem yog tias nqos tau thiab tuaj yeem ua rau lub plab thiab lub raum puas. Kev nqus pa ntawm vapor concentrations kuj tuaj yeem tsim cov teebmeem hauv lub cev, vim tias formic acid cuam tshuam nrog cov metabolism hauv ib txwm.
Combustibility
Formic acid yog ib tug combustible kua nrog ib tug flash point ze 69 degrees Celsius. Nws yuav tsis ignite yooj yim ntawm chav tsev kub, tab sis kub vapors tuaj yeem hlawv, thiab cov kua qaub tuaj yeem ua rau muaj zog oxidizers, tso cua sov thiab roj.
Hazard Classification thiab Thauj
Hauv kev tswj hwm kev thauj mus los, formic acid nrog ntau dua 85 feem pua cov kua qaub yog nqa raws li UN 1779 raws li cov kua corrosive, thaum cov kev daws teeb meem ntawm 10 thiab 85 feem pua yog nqa raws li UN 3412. Ob leeg raug xa mus rau cov pab pawg nyob ntawm qhov concentration. Cov khoom no raug cais raws li corrosive nrog ntxiv cov ntawv cim kev phom sij rau kev noj qab haus huv hauv GHS system, thiab nws txoj kev tuav yog raug txwv rau qhov chaw ua haujlwm raug txwv hauv ntau lub tebchaws.
Kev tuav pov hwm kev nyab xeeb, kev cia khoom, kev pab thawj zaug thiab kev cuam tshuam kev sib tsoo
Cov neeg ua haujlwm yuav tsum hnav cov tshuaj lom neeg- hnab looj tes tiv thaiv, tsom iav thiab tiv thaiv lub ntsej muag, thiab tuav cov formic acid nkaus xwb nyob rau hauv qhov dej zoo- qhov cua. Kev khaws cia yuav tsum nyob rau hauv corrosion-cov thawv tiv thaiv ua los ntawm cov yas tsim nyog lossis cov hlau tsis huv, khaws cia kom deb ntawm cov oxidizers, hauv paus thiab qhov hluav taws kub, nrog rau qhov thib ob kom ntes cov xau.
Kev ua pa yuav tsum tiv thaiv kom tsis txhob muaj vapor tsub zuj zuj, thiab cov tshuaj ntxuav qhov muag thaum muaj xwm txheej ceev thiab cov chaw da dej yuav tsum muaj nyob rau txhua qhov chaw siv cov kua qaub.
Nyob rau ntawm daim tawv nqaij, tshem tawm cov khaub ncaws tsis huv thiab yaug qhov chaw uas raug mob nrog dej kom ntau li 15 feeb, tom qab ntawd nrhiav kev kho mob. Thaum ntsib qhov muag, yaug qhov muag tas li nrog dej thiab tau txais kev pab kho mob tam sim ntawd. Rau kev nchuav, khiav tawm ntawm thaj chaw, siv cov khoom siv tsis zoo, thiab pov tseg cov pov tseg raws li cov cai hauv zos. Tsis txhob ntxiv dej rau qhov nchuav loj ntawm cov kua qaub uas tsis muaj qhov ntim, vim tias dilution generates cua sov.
Kev siv cov Formic Acid
Txawm hais tias nws muaj kev phom sij, formic acid yog dav siv hauv kev lag luam. Nws khaws cia silage thiab tsiaj pub, yog siv rau hauv tawv tanning thiab textile dyeing, ua raws li ib tug descaling thiab tu tus neeg saib xyuas, coagulates roj hmab latex, thiab ua hauj lwm raws li ib tug intermediate nyob rau hauv zus tau tej cov formate ntsev thiab lwm yam tshuaj. Cov ntawv thov no tso siab rau cov txheej txheem nruj tswj hwm thiab cov neeg ua haujlwm raug cob qhia.
Cov lus nug nquag
CAS tus naj npawb ntawm formic acid yog dab tsi?CAS tus naj npawb ntawm formic acid yog 64-18-6.
Puas yog formic acid corrosive?Yog lawm, concentrated formic acid ntawm 85 feem pua thiab siab dua ua rau kub hnyiab rau ntawm daim tawv nqaij thiab qhov muag thiab raug cais raws li corrosive.
Puas yog formic acid flammable?Formic acid yog combustible nrog ib tug flash point nyob ze 69 degrees Celsius, yog li nws hlawv thaum rhuab tab sis tsis yooj yim ignited ntawm chav tsev kub.
Vim li cas ants muaj formic acid?nts thiab qee cov muv thiab kab ntsig secrete formic acid ua cov tshuaj tiv thaiv, uas yog li cas cov kua qaub tau txais nws lub npe.
Formic acid siv rau dab tsi?Formic acid yog siv rau silage preservation, tawv tanning, textile dyeing, tu thiab descaling, roj hmab coagulation thiab tshuaj synthesis.
Yuav tsum thauj cov formic acid li cas?Formic acid saum toj no 85 feem pua yog thauj raws li UN 1779 thiab cov kev daws teeb meem los ntawm 10 mus rau 85 feem pua raws li UN 3412, ob qho tib si ua kua corrosive nrog cov ntaub ntawv khoom txaus ntshai.