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Citation: Chen Li-Ban, Yang Shu-Ying. Calculation and Corrections of Kinematic Viscosity and Intrinsic Viscosity[J]. Acta Physico-Chimica Sinica, ;1991, 7(05): 524-530. doi: 10.3866/PKU.WHXB19910503 shu

Calculation and Corrections of Kinematic Viscosity and Intrinsic Viscosity

1.
Guangzhou Institute of Chemistry, Academia Sinica, Guangzhou 510650

Received Date: 16 April 1990
Available Online: 15 October 1991

A kinematic viscosity equation is suggested for capillary viscometers. The equation shows od accuracy in a wide range of viscosity as well as the Reynolds number:
v=η/ρ=At-Bt~(-1)+C
where v is the kinematic viscosity, t is the efflux time, and A,B,C are instrumental constants. The terms of -Bt~(-1) and C are corres ρ onding to the kinetic energy correction and the drainage correction respectively.
In order to simplify the calculation, a linear [η]～[η]~* correlation has been found, where [η] and [η]~* denote the accurate and the approximate (based on ...
- Kinematic viscosity; Intrinsic viscosity; Kinetic energy correction; Drainage correction; Calculation
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