Boron trifluoride gas 99 999%,

Parameter: Electronic grade Ⅰ Purity: ≥% Oxygen: ＜ Nitrogen: ＜ Carbon dioxide: ＜ Carbon monoxide: ＜ Sulfur dioxide: ＜ Methane: ＜ Silicon tetrafluoride: ＜ Sulfate: ＜ HF: ＜ Please online: