1. Pewani kukhudzana ndi ma okosijeni amphamvu.
Katundu Wamankhwala: Kuwola kumachitika pagawo loposa 200 ℃, ndipo asidi pang'ono kapena zamchere zimatha kulimbikitsa kuwonongeka. Propylene glycol carbonate imatha hydrolyze mwachangu pamaso pa asidi, makamaka zamchere, kutentha kwapakati.
2. Kuopsa kwa mankhwalawa sikudziwika. Samalani kupewa poizoni wa phosgene panthawi yopanga. Malo ogwirira ntchito akuyenera kukhala ndi mpweya wokwanira komanso zida zake sizikhala ndi mpweya. Oyendetsa ayenera kuvala zida zoteteza.
3. Zimakhala m'masamba a fodya ochiritsidwa ndi flue ndi utsi.