Filters








1 Hit in 0.049 sec

Application of the Dimethyl Sulfate Test for Determining Small Amounts of Petroleum or Asphalt Products in Tars

Charles S. Reeve, Richard H. Lewis
1913 Journal of Industrial & Engineering Chemistry  
INTRODUCTORY The recent production of mixtures of t a r with various asphalt and petroleum products for use in the road and paving industry has necessitated a satisfactory method for determining the proportions of each type of material present in such mixtures. The authors have based their research on the well-known dimethyl sulfate test proposed by Valenta? and later investigated and reported upon by Graefes and Harrison and Perkin.4 A. Sommers modified the test in order to render i t
more » ... render i t applicable for the estimation of asphalt in tar-asphalt mixtures, and Chapin6 now uses it in a modified form for the detection of adulterants in coal t a r creosote sheep dips. -4 brief review of the literature upon the test to date will, therefore, prove of value, before submitting our data.
doi:10.1021/ie50052a009 fatcat:346sedupszguzhhdocrn65iqfu