1. Ukugcinwa kwexesha elide emoyeni kulula i-oxidize kwaye umbala uba mnyama, kunye ne-sublimation. Inevumba elimfiliba elingaqhelekanga kwaye iyacaphukisa ulusu. Inokutsha xa kukho ilangatye elivulekileyo kunye nobushushu obuphezulu.
2. I-Toxic, ngokukodwa iimveliso ezihlanjululwe ngokungaphelelanga ezixutywe ne-diphenylamine, ziya kuba yingozi xa zifakwe okanye zifakwe. Le mveliso inokufunxeka eluswini, ibangele ukwalana nolusu, i-dermatitis, umbala weenwele kunye nezikhonkwane, ukudumba kwe-conjunctiva kunye ne-cornea, ukucaphuka kwesisu kunye namathumbu, ukonakala kwizintso kunye nesibindi, kwaye kubangele i-anemia ye-hemolytic, iintlungu zesisu, kunye ne-tachycardia. Abanini-zithuthi kufuneka banxibe izixhobo zokukhusela. Abo bathathe ngempazamo kufuneka bahlambe isisu ngokukhawuleza ukuxilongwa kunye nonyango.