1. Yog siv thiab khaws cia raws li kev qhia tshwj xeeb, nws yuav tsis decompose
Tsis txhob sib cuag nrog oxides, noo noo / av noo, tshav kub
2. Nws yog rhiab heev rau ya raws thiab nplaim taws, yog li nws yuav tsum tau muab cia rau hauv lub tub yees, thiab siv kub yuav tsum tsis txhob ntau tshaj 80 oC.