Abstract
IN an investigation of the action of detergent additives in engine lubricating oils, the sedimentation behaviour of suspensions of carbon black in a wide range of organic media has been studied. Suspensions were prepared by dispersing 0.5 gm. of carbon black (‘Micronex’) in 25 ml. of the liquid by means of 19 kc./s. ultrasonic vibration. The sedimentation behaviour of such systems falls into two distinct classes, depending on the detergent properties of the liquid.
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References
Garner, F. H., Mohtadi, M. F., and Nutt, C. W., J. Inst. Pet. (in course of publication).
Garner, F. H., Mohtadi, M. F., and Nutt, C. W., J. Inst. Pet., 38, 9, (1952).
Garner, F. H., Mohtadi, M. F., and Nutt, C. W., J. Inst. Pet., 38, 986 (1952).
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GARNER, F., MOHTADI, M. & NUTT, C. Stability and Settling of Dispersions of Carbon in Organic Media. Nature 172, 259–260 (1953). https://doi.org/10.1038/172259b0
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DOI: https://doi.org/10.1038/172259b0
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