The Purification and Properties of Antibody against p-Azophenylarsonic Acid and Molecular Weight Studies from Light Scattering Data

Abstract

at temperatures of 600°and above, the activity of the catalyst decreased much more rapidly than at the optimum temperature 575°. Very little difference in activity or life of the two catalysts reported in this paper was noted. Several other catalysts of different ratios of chromium and nickel were prepared; they also showed very little difference in activity. With space velocity ratio of 4:1 of hydrogen sulfide to ethylbenzene, only low yields (~5%) of thianaphthene were obtained.Preliminary results with other alkylbenzenes indicate that the reaction may be general, however, the yields do not appear to be as good as in the case of ethylbenzene.Acknowledgment.-The authors are verymuch indebted to the Research Corporation for a Frederick Gardner Cottrell grant-in-aid which supported this research. Summary Thianaphthene has been prepared in 18.5% conversion from hydrogen sulfide and ethylbenzene using a chromia on alumina catalyst at 575°. Claremont, Calif.

Isolation of Antibody by Means of an Immunological Specific Adsorbent

“…(9) This solution can be used directly since the amount of II can be calculated from the amount of gas produced.…”