Puas yog koj lub Silica Gel puas Muaj Cobalt Chloride?
Qhia Tawm (Txiv kab ntxwv) Silica Gel thiab Tsis Qhia (Dawb) Silica Gel tsis muaj DMF lossis Cobalt Chloride (II). (feem ntau Xiav lossis Xiav xim ntawm Silica Gel) uas yog cais raws li IARC Pawg 2B carcinogen. Cobalt Chloride DAWB taw qhia Silica Gel hlaws dai yuav tig los ntawm Txiv kab ntxwv rau maub ntsuab thaum lub SilicaGel nqus cov dej noo.


