Hint: Lub ntsiab lus ntawm Formalin yog: Nws yog$ 40% $ aqueous (dej) tov ntawm formaldehyde, uas yog cov roj pungent, thiab muaj cov tshuaj HCHO., uas yog siv los ua tshuaj tua kab mob, tshuaj tua kab mob thiab tshwj xeeb hauv hnub no raws li kev kho rau kev kawm ntawm cov ntaub so ntswg hauv lub tshuab tsom.
Formalin chemistry yog dab tsi?
Formalin: A 37% aqueous (dej) tov ntawm formaldehyde, roj pungent, nrog cov tshuaj HCHO, siv los ua tshuaj tua kab mob, tshuaj tua kab mob, thiab tshwj xeeb tshaj yog niaj hnub no raws li ib tug fixative rau histology (kev kawm ntawm cov ntaub so ntswg nyob rau hauv lub microscope).
Formalin yog dab tsi thiab nws siv?
Formaldehyde yog cov ntxhiab tsw muaj zog, tsis muaj xim tsis muaj roj siv los ua cov khoom siv hauv tsev thiab ntau yam khoom siv hauv tsev. … Thaum yaj hauv dej nws hu ua formalin, uas feem ntau yog siv los ua tshuaj tua kab mob, thiab ua cov tshuaj tua kab mob hauv tsev pam tuag thiab chaw kuaj mob.
Formalin HSC yog dab tsi?
A 37-40% tov ntawm formaldehyde hauv dej yog hu ua formalin. Nws yog siv los ua tshuaj tua kab mob thiab khaws cia rau cov kab mob lom.
Yuav ua li cas hu ua formalin?
Formaldehyde (HCHO), tseem hu ua methanal, ib qho organic compound, qhov yooj yim ntawm aldehydes, siv ntau ntau hauv ntau yam kev tsim tshuaj. Nws yog tsim los ntawm vapour-theem oxidation ntawm methanol thiab feem ntau muag li formalin, 37 feem pua aqueoussolution.
