... achromatic color, the odourlessness, do not burn, the volatility is high, is one of stablest organic compounds, when 900°C, with ... of other fluorine carbon compound(F-) /10-6actual measurement≤10The volume fraction of total impurity /10-6≤1000≤1004.main uses ... , its tall purely gas and the mixed gas(high-purity Tetrafluoromethane mixed with the high-purity oxygen), can extensively be applied to ...