Determination of the enthalpies of combustion and formation of substituted triazines in an adiabatic rotating bomb calorimeter
To obtain reliable thermodynamic data on substituted triazines, it is necessary to use a calorimeter that is capable of high precision with small quantities of sample and in which a homogeneous solution o the corrosive combustion products can be maintained. The enthalpies of combustion of six substituted triazines have been determined in a platinum-lined adiabatic rotating bomb calorimeter. These are the first determinations of enthalpies of combustion or formation to have been reported for these compounds. The values derived for the enthalpies of formation in kJ/mol at 25 /sup 0/ C are as follows: 2,4,6-trimethoxy-1,3,5-triazine, -478.60 + or - 0.87; 2,4,6-triethoxy-1,3,5-triazine, -584.99 + or - 1.50; 2,4,6-tris(2-fluoro-2,2-dinitroethoxy)-1,3,5-triazine, -1109.80 + or - 1.53; 2,4-dimethoxy-6-(2-fluoro-2,2-dinitroethoxy)-1,3,5-triazine, -697.08 + or - 1.15; 2-methoxy-4,6-bis(2-fluoro-2,2-dinitroethoxy)-1,3,5-triazine, -907.71 + or - 2.40; 2-amino-4,6-bis(2-fluoro2,2-dinitroethoxy)-1,3,5-triazine, -773.12 + or - 1.50.
- Research Organization:
- National Bureau of Standards, Gaithersburg, MD
- OSTI ID:
- 6130817
- Journal Information:
- J. Res. Natl. Bur. Stand. (U.S.); (United States), Vol. 90:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
TRIAZINES
CALORIMETRY
COMBUSTION HEAT
FORMATION HEAT
CALORIMETERS
CHEMICAL COMPOSITION
COMBUSTION PRODUCTS
EXPERIMENTAL DATA
TEMPERATURE MEASUREMENT
AZINES
DATA
ENERGY
ENTHALPY
HEAT
HETEROCYCLIC COMPOUNDS
INFORMATION
MEASURING INSTRUMENTS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
REACTION HEAT
THERMODYNAMIC PROPERTIES
023000* - Petroleum- Properties & Composition
210200 - Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled