REVISION OF HARTWIG'S OBSERVATIONS OF THE MOON (1890-1915) TAKING INTO ACCOUNT THE LIBRATION EFFECT
Abstract
AD -<+) ++>(N1 AD-270 777Div. 10, 4U (TISTA/SEB) OTS price $1.10 Foreign Tech. Div., Air Force Systems Command, Wright-Patterson Air Force Base, Ohio. THE SYNTHESIS OF SOME C15--C19 CYCLOHEXANE HEMOLOGS WHICH HAVE INCREASED VOLUMETRIC HEAT OF COMBUSTION, by Ye. B. Sokolova and M. P. Shebanova. 23 Jan 62, 7p. incl. illus. tables, 7 refs. (Trans. no. FTD-TT-61-279 of Izvestiya Vysshikh Uchebnykh Zavedeniy Khimiya i Khimicheskaya Tekhnologiya 3, No. 6, pp. 1040-1044, 1060) Unclassified report DESCRIPTORS: (*Hydrocarbons, Cyclohexanes, Heptanes, Octanes, Combustion, Thermodynamics, Specific heat, Synthesis, Tests.) USSR. Six monoalkylated cyclohexane homologs were synthesized and characterized: 2-methyl-4-ethyl4-cyclohexylhexane, 2,2,5-trimethyl-3-cyclohexylhexane, 2,2,4,6-tetramethyl-4-cyclohexylheptane, 2-methyl-5-cyclohexyloctane, 5-butyl5-cyclohexylnonane, 2,6-dimethyl-4-isobutyl4-cyclohexylheptane, and two branched paraffins: 4,9-dipropyldodecane and 5,10-dibutyltetradecane. The density and the volumetric heat of combustion of the synthesized naphthenes was approximately 3% higher then for their analogs which have normal aliphatic chain structure. 2,2,5-trimethyl-3-cyclohexylhexane and 4,9-dipropyldodecane and 5,10-dibutyltetradecane were used to study the effect of mixing naphthenes and branched paraffins upon the heat of combustion. The heats of combustion of the mixtures are additive. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 17, 1962
- Accession Number
- AD0270776
Entities
People
- A.a. Gorynya
Organizations
- National Air and Space Intelligence Center