Trifluoromethane
Content introduction
1、 Product introduction
A colorless, slightly smelling, incombustible gas. It is high in content and has anesthetic effect. It can be decomposed by heat and release highly toxic smoke | |
Chinese name: trifluoromethane/fluoroform | Molecular formula：CHF3 |
English name：trifluoromethane | Relative molecular weight：70.01 |
CAS No：75-46-7 | Hazard category: 2.2 |
UN No：1984 | Solubility: soluble in water |
melting point：-155℃ | boiling point：-84℃ |
critical temperature：25.7℃ | Liquid density (0 ℃): 1.03 g/cm3 |
critical pressure: 4.82MPa | Relative density of gas (air=1): 2.42 |
2、 Technical indicators
Inspection items | index |
三氟甲烷（v/v）% ≥ | 99.999 |
氮 ppmv ≤ | 5 |
氧 ppmv ≤ | 2 |
一氧化碳ppmv ≤ | 1 |
二氧化碳ppmv ≤ | 3 |
其它氟碳化合物ppmv ≤ | 1 |
THC含量ppmv ≤ | 1 |
水 ppmv ≤ | 3 |
总酸度（以HF计）ppmv ≤ | 0.1 |
3、 The application of trifluoromethane can provide other specifications of packaging according to customer requirements.
Plasma chemical etchant for electronic industry and raw materials, fire extinguishing agents and refrigerants of fluoro organic compounds.
4、 Precautions
Store in a cool and ventilated warehouse. Keep away from kindling and heat source. The warehouse temperature should not exceed 50 ℃; It shall be mixed with combustible (combustible) materials and oxidants
Store separately and avoid mixing. The storage area shall be equipped with leakage emergency treatment equipment. The operators must be specially trained and strictly abide by the operating procedures.
Closed operation and local ventilation. It is recommended that operators wear filter gas masks (half masks). High content has anesthetic effect, which can be explained by heat
In case of toxic smoke, the victim shall be immediately transferred to a pollution-free area. If necessary, artificial respiration shall be applied and a doctor shall be invited for treatment. bottle
The gas product is high-pressure liquefied gas, which can only be used after being depressurized and depressurized. Each bottle of gas should be kept in the bottle when using the tail gas
The residual pressure shall be 0.3MPa, which shall not be less than 0.2MPa. Close the cylinder valve to ensure the gas quality and use safety. Do not expose it to the sun, do not throw it again
Do not hit, do not bake cylinders with open fire, and do not load or unload them savagely. There is a cylinder inspection time on the cylinder neck, and the unqualified cylinder shall be entrusted to Philips
Special gas suppliers shall go to a qualified pressure vessel inspection unit for inspection. It is strictly prohibited to use expired cylinders.
