Accession Number : AD0016993


Title :   The Median Detectable Concentration of Diborane, Pentaborane and Decaborane by Odor for Man


Descriptive Note : Research rept.


Corporate Author : CHEMICAL CORPS MEDICAL LABS ARMY CHEMICAL CENTER MD


Personal Author(s) : Comstock, Charles C ; Oberst, Fred W


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/016993.pdf


Report Date : 06 Aug 1953


Pagination or Media Count : 11


Abstract : The median detectable concentrations (MDC's) of 3 boron hydrides were determined with a Fair-Wells osmoscope. Each compound was tested 2 to 4 times on to 15 subjects. THe MDC's of diborane (B2H6), pentaborane (B5H9), and decaborane (B10H14) were 3.7, 2.5, and 0.35 mg/cu m, respectively. The prescribed chamber concentration of B2H6 was determined by an analytical procedure, whereas the concentrations of B5H9 and B10H14 were determined by nominal methods. The B2H6 was described as having an odor of rotton eggs; B5H9, as either garlic, acetylene-like, or slightly sweet; and B10H14, either unpleasant, foul, or chocolate-like. No aftereffects ocurred from any of the vapors in concentrations of 0.2 to 6 mg/cu m.


Descriptors :   *CHEMICAL DETECTION , *ODORS , DECABORANES , DIBORANES , EGGS , PENTABORANES , SENSITIVITY , VAPORS


Subject Categories : Biochemistry
      Miscellaneous Detection and Detectors


Distribution Statement : APPROVED FOR PUBLIC RELEASE