Paraformaldehyde yog ib cov khoom tawg yooj yim. … Ua tsis taus pa paraformaldehyde hmoov yuav ua rau lub qhov ntswg thiab caj pas tom qab kis tau ntev ua rau hnoos, ua pa luv thiab ua rau lub ntsws puas.
YPuas yog paraformaldehyde flammable?
Paraformaldehyde tuaj yeem tsim qhov hluav taws xob vapor / cua sib xyaw hauv cov tso tsheb hlau luam kaw lossis ntim ntawm qhov kub siab tshaj 160oF (71oC). Paraformaldehyde decomposes qeeb hauv dej los tsim tshuaj lom thiab flammable Formaldehyde gas.
4% PFA txaus ntshai npaum li cas?
9.2 Paraformaldehyde yog mob hnyav los ntawm kev sib cuag ntawm daim tawv nqaij. Tsis ntev los no nws tau raug xaiv los ua ib tus neeg muaj peev xwm carcinogen. Kev sib cuag ntawm daim tawv nqaij nrog paraformaldehyde tuaj yeem ua rau khaus thiab pob khaus uas tuaj yeem ua rau tawv nqaij ua xua thaum rov raug dua.
Koj ua li cas pov tseg cov paraformaldehyde?
Nws yog ib qho chaw pov tseg, tsis txhob muab pov tseg hauv qhov dej. Ceev faj thaum tuav thiab tsis txhob ua pa hauv vapors. Ncuav rov qab rau hauv cov thawv qub yog tias ua tau. Yog tias muaj kev nchuav, tshuaj lom neeg feem ntau tuaj yeem yog nqus los ntawm kitty litter, thiab qhov ntawd yuav raug sau thiab pov tseg raws li cov khoom siv phom sij.
PFA puas muaj zog?
PARAFORMALDEHYDE tuaj yeem ua rau muaj kev kub ntxhov nrog muaj zog oxidizing cov neeg ua haujlwm (hydrogen peroxide, cov kua qaub ua haujlwm, perchloric acid nyob rau hauv muaj aniline, poov tshuaj permanganate, nitromethane). Tej zaum yuav hnov mob nrog cov hauv paus (sodium hydroxide, potassium hydroxide, ammonia), thiab nrog nitrogen dioxide (cov tshuaj tiv thaiv tawg nyob ib ncig ntawm 180 ° C).
