Compound disintegration

According to their spokesman, the Max-Planck-Corporation has no proof that the samples are really from Auschwitz. Even if they are from there, according to expert opinion, it is certainly no wonder that no traces of hydrogen cyanide were found, because cyanide compounds disintegrate quickly. In earth this takes six to eight weeks and in stone they can only be preserved by absolute conservation conditions, including complete exclusion of air and bacteria . 

The supposed statements of the unknown expert assert that cyanide compounds disintegrate quickly. This blanket claim is and will always be untenable and shameful for any expert to make. As proof for this, the reader may simply go back to chapter 6.6. of this book, and there in particular to chapter 6.6.5. (page 177). 

According to information from competent chemists, hydrogen cyanide compounds disintegrate within a few months from the effects of weather and are no longer detectable. ... 

Spilled solutions of aluminumalkyls are vety dangerous, because the solvent evaporates very quickly due to the heat released in the interaction of aluminumalkyls with the oxygen in air. Besides, when the temperature increases, organic compounds disintegrate releasing olefines with the increase of temperature the speed of disintegration abruptly increases. 

It is not possible, however, to calculate accurately actual gas composition by using the relationships of reactions (27-14) to (27-19) in Table 27-12. Since the gasification of coal always takes place at elevated temperatures, thermal decomposition (pyrolysis) takes place as coal enters the gasification reactor. Reaction (27-15) treats coal as a compound of carbon and hydrogen and postulates its thermal disintegration to produce carbon (coke) ana methane. Reaction (27-21) assumes the stoichiometiy of hydrogasifying part of the carbon to produce methane and carbon. 

P. Sabatier (Toulouse) method of hydrogenating organic compounds in the presence of finely disintegrated metals. 

Victor Grignard and Paul Sabatier (V. G.) discovery of the Grignard reagent, (P. S.) hydrogenating organic compounds in the presence of finely disintegrated metals... 

The charge-discharge process can be repeated quite often, since the decisive parameters, solubility and dissolution rate of the various compounds, are well matched in the lead-acid battery system. The chemical conversions occur close to each other, and most of the material transport takes place in the micrometer range. Nevertheless, a gradual disintegration of the active material is observed. 

Disintegration of compounds containing certain types of double bonds ... 

Because most carbenes are so reactive, it is often difficult to prove that they are actually present in a given reaction. The lifetime of formylcarbene was measured by transient absorption and transient grating spectroscopy to be 0.15-0.73 ns in dichloromethane. In many instances where a carbene is apparently produced by an a elimination or by disintegration of a double-bond compound, there is evidence that no free carbene is actually involved. The neutral term carbenoid is used where it is known that a free carbene is not present or in cases where there is doubt. a-Halo organometallic compounds (R2CXM) are often called carbenoids because they readily give a elimination reactions (e.g., see 12-37). ° ... 

Fig. 3.5 Potential vs. pH diagram for the CdTe-H20 system at 25 °C. Solid CdTe is thermodynamically stable over the entire pH range. Consequently, CdTe does not hydrolyze at any H and OH activities of practical interest. In acidic solutions, the only process accompanying cathodic CdTe polarization is hydrogen release. Therefore, in the region of cathode potentials, CdTe is a sufficiently stable electrode material from the electrochemical point of view. The -1.35 V potential is the lowest limit of stabihty. Below this limit, CdTe corrodes in the whole pH range e.g., for pH < 2.8, H2Te vapor is produced at -1.25 V. For pH > 2.8, diteUuride or telluride ions are formed with disintegration of the compound. (With kind permission from Springer Science+Business Media [82])...

The electrostatic interactions in the complexes 19 were obviously sufficient to favor the zwitterionic structure in a manner that formation of the usual o-QM was suspended, so that all reactions typical of o-QMs in their quinoid form (such as [4 + 2]-cycloadditions) were suppressed or at least slowed down. Decomposition of the complex of a-tocopherol was immediate by fast heating to 40 °C or above. This caused disintegration of the complex 19, immediate rotation of the methylene group into the ring plane, and thus formation of the o-QM, which then showed the classical chemistry of such compounds. 

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