Nitroform

With sodium azide, salts of secondary nitroparaffins rearrange to N-substituted amides (29). With SO2, primary or secondary nitroparaffins give imidodisulfonic acid salts (30). Potassium nitroform reacts quantitatively with nitryl chloride in ether to form tetranitromethane (31). 

Urea—formaldehyde reaction products represented the first synthetically produced form of controlled release nitrogen and were commercialized in 1955 under the trade names Uramite (DuPont) and Nitroform (Nitroform Corp.). 

Dimethylthallium fulminate Potassium trinitromethanide ( Nitroform salt)... 

Methylamine dinitramine and dry salts thereof Methylamine nitroform Methylamine perchlorate (dry)... 

Ref 11). The pH of a satd soln in w was measured with a glass electrode and found to be 0.6 (Ref 25, p 2) CA Registry No 517-25-9. The Hercules Powder Co of Wil-mington, Del has been granted a trademark for Nitroform , a synthetic w-insoluble compd for controlled release of N for agricultural use (Ref 40). This should not be confused with TNMe... 

Impact Sensitivity Determinations of Explosive Compounds Tested During the Period from 1 January to 1 November 1950", NOL NAVORD 1589, (1 Nov 1950), Table V 22) J.M. Rosen, Procedure for the Quantitative Analysis of Nitroform and Bis(trinitroethyl)urea Using Tetra-phenylarsonium Chloride , NOL NAVORD 1729 20 Dec 1950) 23) N.L. Drake et al, U of Md... 

F. Taylor, Jr, Guanidine Nitroformate and Hydrazine Nitroformate as Possible New High Explosives , NOL NAVORD 2125 (11 July 1951) (ATI-203265) 26) H. Ficheroulle ... 

A somewhat unusual type of C-nitration can occur in reactions between nitric acid and unsaturated hydrocarbons. An example of the nitration of unsaturated hydrocarbons is Quilico s scheme (Ref 31) for the formation of nitroform (CH(N02)3) ... 

Nitroform. Same as Trinitromethane see under Methane and Derivatives in this Vol... 

Klunsch (Ref 72) has incorporated hydra-zinium nitroformate and aluminum hydride in plastisol NC formulations which cure at room temp without undesirable gas formation. A number of such formulations and calculated ballistic results are given in Table 21. Although these are attractive propint s from the standpoint of potential energy, their impact sensitivity was not described. Similar plastisol binder propellants in Table 18 were sensitive enough to impact to warrant extreme caution in processing into rockets. 

Other formulations containing the ingredients aluminum and hydrazine nitroformate resulted in high calculated impulses as the data in Table 24 show... 

Potassium-3,5-dinitro-2( 1 -tetrazenyl) phenolate Potassium trinitromethanide ( Nitroform salt) (V-Methyl styrene... 

During preparation of fluorotrinitromethane, an instrumental method can be used to avoid occurrence of dangerous over-fluorination of nitroform. 

The pulse radiolysis technique gives a direct way for measuring the hydrated electron yield. To get the stationary yield, one can simply follow the electron absorption signal as a function of time and, from the known value of the extinction coefficient (Table 6.2), evaluate g(eh). Alternatively, the electron can be converted into a stable anion with a known extinction coefficient. An example of such an ion is the nitroform anion produced by reaction of eh with tetrani-tromethane (TNM) in aqueous solution ... 

The intensity of absorption gives the product G , where G is the observed yield and is the molar extinction coefficient. The absolute value of was determined by Fielden and Hart (1967) using an H2-saturated alkaline solution and an alkaline permanganate-formate solution, where all radicals are converted into Mn042. They thus obtained = 1.09 x 104 M- cm1 at 578 nm, which is almost identical with that obtained by Rabani et al. (1965), who converted the hydrated electron into the nitroform anion in a neutral solution of tetrani-tromethane. From the shape of the absorption spectrum and the absolute value of at 578 nm, one can then find the absolute extinction coefficient at all wavelengths. In particular, at the peak of absorption, (720)/ (578) = 1.7 gives at 720 nm as 1.85 X 104 M 1cm 1. 

Using basic pH leads to higher plateau rate constants, indicating that the ratedetermining step is reaction 18. Reaction 17 must be at least as fast as the rate of 02 addition in the highest 02 concentration used, kn 8 x 105 s 1, which is the limit of the instrument measurement. The G of benzene in pulse radiolysis was found to be equal to that of the nitroform anion (1.6 x 10-7 molJ-1) as can be expected from reactions 17-19. Since the yield of the cyclohexadienylperoxyl radical is 2.9 x 10-7 mol. 1 1 it means that only a fraction (ca 60%) of the cyclohexadienylperoxyl radicals eliminates HO2. The H02 elimination occurs by H-transfer of the allylic hydrogen to the oxygen... 

Nitroform entsteht beim Einleiten von Acetylen in Salpetersaure, kann aber auch von Tetranitromethan ausgehend hergestellt werden. 

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