1. Uzinzo phantsi kobushushu obuqhelekileyo kunye noxinzelelo.
Izixhobo ezingahambelaniyo: Alkali, iarhente ye-oxidifiqing, inciphisa iarhente.
2. Ityhefu esezantsi. Inefuthe elikhuthazayo kulusu kunye ne-mucous membrane, kodwa ayibi kakhulu njenge-ongulalic acid. I-oral ld50 yeempuku yi-1.54G / kg. Ukukhusela okukhethekileyo akudingeki xa ivelisa i-malonic acid, kodwa i-cyanoceting acid kunye ne-sodium cynide zizixhobo ezinamaqela e-cyano, nxiba izixhobo ezichasene ne-antirus, kwaye uphuhlise amanyathelo okhuseleko.
3. Zikhona kwi-flue-i-slied ye-curbacco enyangelweyo, amagqabi e-burley yecuba kunye nomsi omkhulu umsi.
I-4. Inokuba yinkqantosi kwi-vacuum.