1. ruaj khov nyob rau hauv ib txwm kub thiab siab.
Cov ntaub ntawv tsis sib xws: alkali, oxidizing tus neeg sawv cev, txo tus neeg sawv cev.
2. Tsawg toxicity. Nws muaj cov nyhuv stimulating ntawm daim tawv nqaij thiab cov mucous daim nyias nyias, tab sis nws tsis loj npaum li oxalic acid. Qhov ncauj LD50 rau nas yog 1.54g / kg. Kev tiv thaiv tshwj xeeb feem ntau tsis xav tau thaum tsim cov malonic acid, tab sis cyanoacetic acid thiab sodium cyanide yog ob qho tib si muaj zog tshuaj lom, yog li koj yuav tsum tau ceev faj tshwj xeeb thaum tuav cov khoom sib xyaw uas muaj cyano pawg, hnav cov cuab yeej tiv thaiv kab mob, thiab txhim kho kev ntsuas kev nyab xeeb.
3. Muaj nyob rau hauv cov pa luam yeeb-kho cov nplooj, burley nplooj thiab cov pa luam yeeb loj.
4. Nws tuaj yeem sublimated hauv lub tshuab nqus tsev.
