1.Candle tsim Lub ntsiab raw khoom ntawm tswm ciab yog paraffin ciab.Paraffin wax yog sib xyaw ntawm ntau cov alkanes, feem ntau n-doxane thiab n-doxoctane, uas yog kwv yees li 85% carbon thiab 14% hydrogen.Cov khoom pabcuam ntxiv yog cov roj dawb, stearic acid, polyethylene, essence, thiab lwm yam, ntawm ...
Nyeem ntxiv