NM = Nitromethan

Gas), gas phase AQ, water MeOH, methanol EtOH, ethanol 2-PrOH, propan-2-ol EG, ethylene glycol DMSO, dimethyl sulphoxide AN, acetonitrile NB, nitrobenzene NM, nitromethane. 

Fig. 4. Limiting single ion mobilities vs. reciprocal of estimated crystallographic radii of alkali metal ions AN, acetonitrile NM, nitromethane DMF,dimethylformamide PY, pyridine NB, nitrobenzene DMSO, dimethylsulfoxide EC, ethylene carbonate...

PC = propylene carbonate DN = 1,3-dioxolane EC = ethylene carbonate 3-MeS-3 = methyl sulfolane DME = dimethoxy ethane THF = tetrahydrofuran S = sulfolane DMSO = dimethyl sulfoxide, DEE = diethyl ether, 2-Me-F = 2 methyl furan 2-MeDN = 2-methyl 1,3-dioxolane MA = methylacetate DMM = dimethoxymethane 2-MeOTHF = 2 methoxytetrahydrofuran BL = y-butyrolactone NM = nitromethane AN = acetonitrile MF = methyl formate DEC = diethyl carbonate DMC = dimethyl carbonate. 

Fig. 9. MMCT band energies vs 1 /Dop - 1/DS. Key to the solvents BN, benzonitrile NB, nitrobenzene DMSO, dimethyl sulfoxide DMF, dimethylformamide DMA, dimeth-ylacetamide PC, propylene carbonate FA, formamide NM, nitromethane. [Reproduced with permission from Ref. (112). Copyright (1987) American Chemical Society.1...

Abbreviations HMPA, hexamethylphosphoric triamide DMSO, dimethyl sulfoxide DMF, dime-thylformamide FA, formamide THF, tetrahydrofuran NM, nitromethane. 

Figure 8-7. Correlation between equilibrium constant for esterification and solubility of water in the solvent. Equilibrium constant was defined as [Ester]/([Alcohol].[Acid]), for reactions at fixed water activity (close to 1). Solvents are bb, butyl benzoate be, bromoethane bk, dibutyl ketone bp, dibutyl phthalate bz, benzene ca, 1,1,1-trichloroethane cf, chloroform ct, carbon tetrachloride cy, trichloroethylene ee, ethyl ether ek, diethyl ketone ep, diethyl phthalate hd, hexadecane hx, hexane me, methylene chloride mk, methyl iso-butyl ketone nm, nitromethane oc, /so-octane pe, iso-propyl ether tl, toluene. Valivety et al...

Fig. 9.19. Temperature variation of the effective magnetic moment for [Fe(pybzrni)3](C104)2 complex in various solvents MeOH—methanol, Ac—acetone, NM—nitromethane, AN— acetonitrile.

Solvents A acetone, AA acetic acid anhydride, ACN acetonitrile, AcOH glacial acetic acid, B benzene, Butac butyl acetate, Bu I-butanol, Ch chloroform, Cy cyclohexane, Dh dichloromethane, De 1,2-dichloroethane, DO dioxane, E diethyl ether, Et ethanol, Etac ethyl acetate, F forma-mide, FA formic acid, H hexane, He heptane, IP isopropanol. Me methanol, MEK methyl ethyl ketone, NM nitromethane, P petroleum ether, Py pyridine, T toluene, THF tetrahydrofurane, W water, X xylene. 

High performance Hquid chromatography (hplc) may be used to determine nitroparaffins by utilizing a standard uv detector at 254 nm. This method is particularly appHcable to small amounts of nitroparaffins present, eg, in nitro alcohols (qv), which caimot be analyzed easily by gas chromatography. Suitable methods for monitoring and deterrnination of airborne nitromethane, nitroethane, and 2-nitropropane have been pubUshed by the National Institute of Occupational Safety and Health (NIOSH) (97). Ordinary sorbant tubes containing charcoal are unsatisfactory, because the nitroparaffins decompose on it unless the tubes are held in dry ice and analyzed as soon after collection as possible. 

Nitromethane. The industrial method of producing NM is based on a vapor phase reaction of propane and 70% nitric acid. The reaction is carried out at around 410° and 115—175psi press. In essence the production of NM involves five stepst 1) nitration 2) product recovery ... 

More recent work in liq expls using N204 is that of Herickes and Ribovich (Ref 14) who made a two year study for the purpose of providing a material which could be used for mine field clearance. It resulted in two stoichiometric mixts, one of N204—benz (18.5 wt % benz), and the other of N204-nitromethane (64 wt % NM). These mixts exhibited the fol-... 

Lithium perchlorate in nitromethane (LP-NM) is sometimes a more effective reaction medium than LP-DE for certain Diels-Alder reactions. The cycloaddition of 2,3-dimethylbutadiene with nitrostyrenes (Scheme 6.24) occurs with low... 

The rate enhancement of the Diels-Alder reaction in LP-NM has been attributed to the high dipole moment of nitromethane (3.40 D) in comparison with diethyl ether (1.33 D). 

Lamellar, single crystals of cellulose triacetate, precipitated from nitromethane with butyl alcohol, were studied by X-ray and electron diffraction. Only the crystals containing the mother liquor, or moistened with nitromethane, showed rich diffraction details. From stretched and annealed fibers, it was found that the unit cell is tetragonal, with a = fe = 21.15A (2.115 nm), and c = 41.36 A (4.136 nm). 

A sample, m.p. 184-185°, prepared by recrystallization of the product from nitromethane, gives satisfactory elemental analytical data. Its nm.r. spectrum (60 MHz, dimethyl sulfoxide-da) reveals that the compound exists in the iminopyra-... 

The primary photochemical reaction for nitromethane in the gas phase is well supported by experiments to be the dissociation of the C—N bond (equation 98). The picosecond laser-induced fluorescence technique has shown that the ground state NO2 radical is formed in <5 ps with a quantum yield of 0.7 in 264-nm photolysis of nitromethane at low pressure120. The quantum yield of NO2 varies little with wavelength, but the small yields of the excited state NO2 radical increase significantly at 238 nm. In a crossed laser-molecular beam study of nitromethane, it was found that excitation of nitromethane at 266 nm did not yield dissociation products under collision-free conditions121. 

FIGURE 4.2 The van Deemter curves for HPLC and SFC. Conditions (a) LC, 55 cm x 250 xm ID fused-silica capillary columns packed with 5 pm porous particles, nitromethane test solute, 25°C, UV detector (214 nm) (b) SFC, 75 cm x 250 pm ID fused-silica capillary columns packed with 5-pm porous particles, 45°C, 230 atm, carbon dioxide mobile phase, methane test solute, FID. (Adapted from Wu, N. et al. Anal. Chem. 71 5084-5092. With permission.)... 

Detonotion, Flash-Across, Heat Pulse and Hypervelocity Phenomena. According to Cook (Ref 3), the phenomenon of heat pulse was first recognized by Dr W.S. McKewan of NOTS, China Lake, Calif while viewing microsecond, color, framing photographs of Nitromethane (NM) detonated thru SPHF (shock-pass-heat-filter) glass plates in experiments conducted by D.H. Pack,... 

In recent years liq Nitromethane, NM, although rarely used as a practical expl, has been studied from the point of view of initiation and detonation theory probably more than any other expl, liq, solid or gas. Some of these studies are discussed in sections 4 5... 

Another class of LE are the Nitromethanes. As already mentioned, NM is probably the most thoroughly studied expl. Tetranitro-methane, TNM, is expl by itself, and forms very powerful and very sensitive mixts with liq fuels (See below)... 

Angus Chemical Co. (1998) Technical Data Sheet Nitromethane (NM ), Buffalo Grove, IL... 

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