Oxygen Difluoride
二氟化氧（OF2），分子量為54.0，沸點(diǎn)為-144.8℃，是一種無色氣體，冷凍后成為淡黃色液體。由于氟的電負(fù)性大于氧，電子向氟原子偏移，故其中氧為正二價(jià)，氟為負(fù)一價(jià)。純二氟化氧在玻璃容器中穩(wěn)定，是最穩(wěn)定的氟氧化合物，200℃以上分解成氧氣和氟氣，可用作極強(qiáng)的氧化劑和氟化劑，也用于制取氧正離子鹽。
Oxygen difluoride (OF2) is a colorless gas with the molecular weight of 54.0 and boiling point of 144.8℃, it is pale yellow liquid when it is freezed. Since fluorine is more electronegative than oxygen and the electron migrates toward fluorine atoms, oxygen has a charge of plus two and fluorine has a charge of minus one. Pure oxygen difluoridei s stable in glass container, it is one of the most stable fluorine oxygen compounds, it decomposes into oxygen and fluorine above 200 ℃, it can be used as a strong oxidant and fluridizer and also used for oxygen cation salts.
| 項(xiàng)目Items | 單位Units | 指標(biāo)Index |
| 二氟化氧Oxygen difluoride（OF2）≥ | Vol.% | 99.5 |
| 四氟化碳Carbon tetrafluoride（CF4）≤ | Vol.ppm | 10 |
| 氮?dú)釴itrogen（N2）≤ | Vol.ppm | 10 |
| 氧+氬Oxygen+Argon（O2+Ar））≤ | Vol.ppm | 20 |
| 一氧化碳Carbon monoxide（CO）≤ | Vol.ppm | 10 |
| 二氧化碳Carbon dioxide（CO2）≤ | Vol.ppm | 5 |
| 氧化亞氮Nitrous oxide（N2O）≤ | Vol.ppm | 10 |
| 氟化氫Hydrogen fluoride（HF）≤ | Vol.ppm | 35 |
二氟化氧200℃以上可分解成氧氣和氟氣，用作極強(qiáng)的氧化劑和氟化劑，是化學(xué)合成工業(yè)的重要原料，應(yīng)用領(lǐng)域廣泛，用于氧化和氟化反應(yīng)。
Oxygen difluoride decomposes into oxygen and fluorine above 200℃, it is used as a strong oxidant and fluridizer, and OF2 is an important raw material for chemical synthesis industry with wide application field, it is used for reaction of oxidation and fluorination generally.
二氟化氧用涂敷了聚四氟乙烯層的鋼瓶存放，在避光的低溫干燥環(huán)境下密封貯藏。具體包裝規(guī)格可根據(jù)用戶要求定制。二氟化氧儲(chǔ)存于陰涼、通風(fēng)的庫房中，遠(yuǎn)離火種、熱源，防止受潮。應(yīng)與易（可）燃物、食用化學(xué)品分開存放，切忌混儲(chǔ)。儲(chǔ)區(qū)應(yīng)備有泄漏應(yīng)急處理設(shè)備。
Oxygen difluoride is sealed in cylinder coated with PTFE and stored in a microthermal and dry environment away from light. Specific packaging specifications can be customized according to user requirements. Oxygen difluoride is stored in a shady and ventilated storeroom away from fire and heat source, protecting against moisture. It should be separately stored with inflammable (combustible), edible chemicals. The storage area shall be equipped with equipment for emergency.
