|Document ID (ISN)||51580|
|ISSN - Serial title
||Gigiena truda i professional'nye zabolevanija
|Convention or series no.
||Jarym-Agaeva N.T., Putilina O.N.
||Photometric method of aniline and phenyl isocyanate determination in workplace air
||Fotometričeskij metod opredelenija anilina i fenilizocianata v vozduhe rabočej zony [in Russian]|
||Oct. 1986, No.10, p.56-57. 2 ref.
||Aniline and phenyl isocyanate are determined by rection with p-dimethylaminobenzaldehyde to give diphenylmethanediamine and diphenylmethane diisocyanate. Air samples are passed through absorber solutions containing the reagent. In 40% acetic acid, both aniline and phenyl isocyanate react; in 1% ammonia, only aniline reacts. The absorbance of the solutions at 430-450nm is measured and compared with the absorbance of standard solutions. Phenyl isocyanate concentration is calculated from the difference in absorbance between the acetic-acid and ammonia reaction media.
||phenyl isocyanate; photometry; determination in air; aniline
||description of technique; toxic substances
||D - Periodical articles
||Toxic and dangerous substances
|Broad subject area(s)