Accession Number : AD0470129


Title :   THERMOCHEMISTRY OF SELECTED COMPOUNDS


Descriptive Note : Quarterly letter rept. 16 May-15 Aug 1965


Corporate Author : NATIONAL RESEARCH CORP CAMBRIDGE MA


Personal Author(s) : Fasolino, Ludwig


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/470129.pdf


Report Date : 10 Sep 1965


Pagination or Media Count : 6


Abstract : Hydrolysis of Al(BH4)3 with the vapors of water and HCl was investigated independently. In the latter case, the generated heat data were quite consistent. Analytical determinations of B and evolved H2 continued to be low by an amount ranging from 10 to 20% of theoretical. An Al analysis was found to be greater than 100% of theoretical and is in line with earlier findings. It was found that the presence of HCl in the bomb reacted to a slight degree with the bomb producing Ni ions which yielded a high 'Al' analysis. In the reaction of Al(BH4)3 with water vapor, the B analyses have begun to appear to be much closer to the 100% of the theoretical value. Samples of SAP were prepared in a nitrogen drybox and allowed to react with water. Nine determinations of the heat of hydrolysis of the SAP material were made. The results gave -54.4 + or - 1.4 kilocalories per mole.


Descriptors :   *BOROHYDRIDES , ALUMINUM , HYDROCHLORIC ACID , HYDROLYSIS , POWDER METALS , THERMOCHEMISTRY , WATER


Subject Categories : Inorganic Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE