Methyl fluoride

Free energy of formation DOT classification DOT label UN Number CGA Connection 

No occupational exposure limits established by OSHA, NIOSH or ACGIH 

Central nervous system depressant simple asphyxiant. Symptoms will appear based on rate of oxygen depletion. The following may occur, rapid respiration, incoordination, accelerated pulse, depressed sensations, faulty judgement. There is possibility of nausea, vomiting, convulsions, and death. 

Dangerous fire hazard when exposed to heat or flame. Stable under normal conditions of temperature and pressure. Keep away from oxidizers. Decomposition products may include toxic and corrosive fumes of fluorides. 

Supplied air respirator in positive pressure mode with full face piece. For the gas protective clothing is not required. Wear face shield or goggles for eye protection. 

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FIGURE 14 1 Electro static potential maps of (a) methyl fluoride and (b) methyllithium The electron distribution is reversed in the two compounds Carbon IS electron poor (blue) in methyl fluoride but electron rich (red) in methyllithium... 

Figure 14 1 uses electrostatic potential maps to show how different the electron distri bution IS between methyl fluoride (CH3F) and methyllithium (CH3L1)... 

For a symmetric rotor molecule such as methyl fluoride, a prolate symmetric rotor belonging to the C3 point group, in the zero-point level the vibrational selection mle in Equation (6.56) and the character table (Table A. 12 in Appendix A) show that only... 

CFlBrClF (bromochlorofluoromethane) dipole moment, 99ff enantiomers, 79 symmetry elements, 79ff CF12F2 (difluoromethane) cartesian axes, 89 symmetry elements, 77, 83 CF13F (methyl fluoride) dipole moment, 116 symmetry elements, 74, 83 C Fl3F (methyl fluoride) vibration-rotation band, 178... 

Lewis Acid Complexes. Sulfolane complexes with Lewis acids, such as boron trifluoride or phosphoms pentafluoride (17). For example, at room temperature, sulfolane and boron trifluoride combine in a 1 1 mole ratio with the evolution of heat to give a white, hygroscopic soHd which melts at 37°C. The reaction of sulfolane with methyl fluoride and antimony pentafluoride inhquid sulfur dioxide gives crystalline tetrahydro-l-methoxythiophenium-l-oxidehexafluoroantimonate, the first example of an alkoxysulfoxonium salt (18). 

Fluoro methane Methyl fluoride 190 CH3F Toluene 68 C,Hs... 

Methyl fluoride Pentyl chloride 1-Ethylbutyl bromide Cyclohexyl iodide... 

Since nucleophilic atoms have nonbonding electrons they can be identified by inspection of Lewis structures. Draw Lewis structures of triraethylamine, methyl fluoride, and phenol. Draw all nonbonding electron pairs and identify all nucleophilic atoms. 

Nucleophilic atoms can also be identified by inspection of electrostatic potential maps. Reactive sites appeal as negative electrostatic potentials. Examine electrostatic potential maps for trimethylamine, methyl fluoride, and phenol. Identify the most nucleophilic atom in each molecule. Are these the same as you identified above using Lewis structures Are all sides of the nucleophilic atoms equally electron rich, or only particular regions ... 

In methyl fluoride the three lone-pair molecular orbitals divide into two degenerate, purely p-type orbitals and a deeper cr-type orbital (III.33J (see Fig. 48). The p-type orbitals on fluorine can be labeled "eclipsed and bisected , by analogy with the eon-... 

Localized orbitals, see bond orbitals and group orbitals Lone pairs, 9, 39, 42, 49 cyclopropanone, 37 methyl fluoride, 42 pyrazine, 28 water, 42... 

Methyl acetylene, 16, 42, 116 Methyl cyanide, 118 Methyl fluoride, 107 lone pairs, 42... 

Uses. A review of its use as an oxidizer in rocket proplnts is given in Ref 6. A 50 50 mixt of N trifluoride F, with ammonia as fuel, yields a specific impulse of 295sec and a d impulse (specific impulse X d) of 340 (Ref 6). Mixts with methyl fluoride, 1,1 -difluoropropane, and 1,3-dlfluoropropane have been patented as monoptoplnts(Ref 9). AN trifluoride/H flame has been proposed as a cutting and welding torch (Ref 8)... 

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