High purity with rare factory; factory advantage and competitive ... sealed, transport should avoid exposure, humidity, rain. Not with acid and oxidant were mixed reservoir operation. Containers must ... is fresh, well-ventilated place to rest;3, with sub-acid, amyl nitrate, after 1-2 sticks ... washed, and then washed with ammonium sulfide solution;5, after the on-site first aid, shall immediately taken to ...