Skip to main content
Log in

Heats of combustion of some symmetrical dialkyl ureas and their corresponding alkyl carbamates

  • Published:
Proceedings of the Indian Academy of Sciences - Section A Aims and scope Submit manuscript

Abstract

The standard heats of combustion of the disubstituted ureas, N, N′-diheptyl urea, N, N′-dioctyl urea and N, N′-didecyl urea and the carbamates,n-heptyl ammoniumn-heptyl carbamate,n-octylammoniumn-octyl carbamate andn-decyl ammoniumn-decyl carbamate have been determined. The values found are 2353±1·3, 2658·4±1·1, 3268·5±1·7, 2349·8±1·6, 2654·4±1·2, 3264·6±1·8, K.cals. mole−1 respectively. The heats of formation of these compounds have been calculated.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Manual No. 117,Parr Oxygen Bomb Calorimeters, Parr Instrument Company, Illinois.

  2. A.S.T.M. Standards, 1949, Part 5, p. 605.

  3. Dickinson, H. C...Bull. Natl. Bur. Standards, 1915,11, 189.

    Google Scholar 

  4. Venugopala Charlu, T... “Studies on high pressure reactions, (a) Aliphatic amines and carbon dioxide, (b) 1–4 dioxane, carbon monoxide and water,”Ph.D. Thesis, Indian Institute of Science, Bangalore, 1962.

    Google Scholar 

  5. Moore, M. B. and Wright, H. B.J. Am. Chem. Soc., 1948,70, 3865.

    Article  Google Scholar 

  6. Org. Reactions, Ed. Roger Adamset al., John Willey and Sons, Inc., 1947,3, 307.

  7. Chabrier, P. and Najer, H.Bull. Soc. Chim. France, 1957,2, 1069–072.

    Google Scholar 

  8. Fred Applegathet al. ..Brit. Pat. 818,864 (To Monsanto Chemical Co.), 26 Aug. 1959;Chem. Abstr., 1960,54, 9774.

  9. Scott, F. L. and Scott, M. T.J. Am. Chem. Soc., 1957,79, 6081.

    Google Scholar 

  10. Hunter, B. A. and Glenn, H. D.U.S. Pat. 2,635,124 (To United States Rubber Co.), April 14, 1953;Chem. Abstr., 1953,47, 7814.

    Google Scholar 

  11. Leibnitz, E.et al.;..Chem. Abstr., 1961,55, 365.

    Google Scholar 

  12. Lange, N. A...Handbook of Chemistry, McGraw-Hill Book Co., Inc., New York, 1956.

    Google Scholar 

  13. Prosen, E. J. and Rossini, F. D.J. Research, Natl. Bur. Standards, 1945,34, 263.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Charlu, T.V., Rao, M.R.A. Heats of combustion of some symmetrical dialkyl ureas and their corresponding alkyl carbamates. Proc. Indian Acad. Sci. 60, 31–35 (1964). https://doi.org/10.1007/BF03046366

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03046366

Keywords

Navigation