Automated drop volume apparatus for surface tension measurement
β Scribed by E. L. Rowe
- Publisher
- John Wiley and Sons
- Year
- 1972
- Tongue
- English
- Weight
- 199 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0022-3549
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β¦ Synopsis
The drop volume method for surface tension measurements is ideal for new compounds since only a few milligrams are needed to obtain the CMC. However, the method is tedious and time consuming. An automated drop volume apparatus was constructed which provides sufficient accuracy with very little operator time. It is based on measurement of the average time between falling drops delivered from a constant-rate motorized syringe.
π SIMILAR VOLUMES
Described herein is a two-phase nonempirical method for the determination of surface or interfacial tension of stationary systems that also allows the determination of drop correction factor. The method is based on the theoretical calculation of the drop profile associated with the maximum volume of