Co nitrate

Trinitrophenoxyethv 1 -co-nitrate is more sensitive to impact than picric acid and less so than tetryl. Its explosive strength approaches that of tetryl, since it produces an expansion in the lead block of 350-355 cm3. 

DeMent (Ref) proposed to use the following Co ion contg mixts as smoke-producing pyrotechnic compns a)Co stearate 2.0, K chlorate 10.0 to 12.0 Amm acid fluoride 4.0 to 8.0 parts. This compn, when ignited by a flame, produced a heavy, voluminous fine white smoke b)When using monochloroacetic acid in previous mixt, instead of fluoride, the color of smoke produced was blue-white c)Equal parts of Co chloride, K bromate, K bromide, sulfur, K chlorate K acid sulfate burned with the emission of a green to green-brown smoke d)Equal parts of Co nitrate, K bromate, K bromide, sulfur, K chlorate K acid sulfate burned with the emission of grn to gm-bm smoke e)A mixt of Co chloride 1.0, K chlorate 2.0,K iodate 1.0, K iodide 1.0 sulfur 1.5 parts burned with evolution of a heavy voluminous deep violet smoke Ref J.DeMent, USP 2995526 (1961), p8... 

The Ni-Co-molybdate samples were prepared by co-precipitation of solutions containing Ni and Co nitrates (Merck) and ammonia heptamolybdate (Fluka) at pH between 6.0 and 8.5 followed by steps of filtering, washing, drying (110°C, 12 h) and calcination (500°C, 3 h in air). The amounts of metals used for all preparations correspond to the following stoichiometry Nio.sCoo,5Mo04. The mixed Co and Ni nitrate solution was added stepwise to the ammonium heptamolybdate solution, both heated at 60°C and then the co-precipitation was realized for 8 h. Ammonium hydroxide solution was used to reach and maintain a constant pH at 6.0, 7.5 and 8.5 in successive runs. The catalyst was crushed and sieved in particle sizes of 200-250 pm for catalytic tests. 

Figure 4 Predicted solid products distributions in SCS systems (a) Ni-nitrate glycine, (b) Cu-nitrate glycine, and (c) Co-nitrate glycine...

By feeding the extraction plant with naphthas which are rich in particular aromatic hydrocarbons, those produced by hydroforming for example, high purity of the finished aromatic product is possible. At the Baytown refinery of the Humble Oil and Refining Co., nitration-grade toluene and other high-purity aromatic products are made by these methods, although the product from the extraction plant must be further treated with sulfuric acid and caustic to remove small amounts of olefins and diolefins (72). 

Figure 3. Optical Micrographs of silica pellets impregnated using the vacuum filtration procedure (i)solution A, 0.5 g Co nitrate/cm H2O (ii) impregnation of melt.

Initially, the titanium substrate was eleaned and placed in an oven at 480 °C in air to form a titanium ojgmitride layer that acts as a diffusion barrier for the metal eatalyst (Fe, Ni, Co, Mo or alloys). The metal catalyst was then deposited either by eleetron-beam evaporation of a 10 nm film of (Ni or Fe) or by immersion in ethanolie solution of metal (Fe, Ni or Co) nitrate. Before growth, the substrates are exposed to a plasma of N2 (20 seem) and H2 (80 seem) at 30 Torr for 5 minutes after the substrate reaehes 760 °C. VACNT growth then proeeeds by adding CH4 (14 seem) to the N2/H2 gas mixture. The growth of VACNT was performed for 2 minutes at 30 Torr and 760 °C, with temperature measured on the backside of the substrate. 

Samples of this pre-dried support (23g) were 75cm aqueous solution of Cu or Co or Cu-Co nitrates of a sufficient strength to give the catalyst compositions below ... 

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