| Title | Dilute Triton X-100 in water as a reference liquid for hydrometer calibration using Cuckow's method |
| Publication Type | Journal Article |
| Year of Publication | 2014 |
| Authors | Robinson, J.E., Sutton C.M., and Reid G.F. |
| Journal | Measurement: Journal of the International Measurement Confederation |
| Volume | 57 |
| Pagination | 132 - 137 |
| Date Published | 2014 |
| ISSN | 02632241 (ISSN) |
| Keywords | Calibration, Hydrocarbon fluids, Hydrometers, Liquid density, Liquids, Mixing, Mixing ratios, Performance tests, Surface tension, Triton X-100 |
| Abstract | We propose a 200 parts in 106 by volume solution of the surfactant Triton X-100 in water as a reference liquid for hydrometer calibration using Cuckow's method. This liquid has advantages over traditional hydrocarbon fluids such as nonane and tridecane; it is safer, less expensive, and the density can be determined with sufficient accuracy from the mixing ratio. Previous researchers have used about 70 parts in 106 by volume Triton X-100 in water. Here we report measurements on the surface tension behaviour of aqueous Triton X-100 solutions with concentrations in the range (39-301) parts in 106 by volume. These measurements indicate that a 200 parts in 106 mixture is a suitable compromise between surface tension behaviour and accuracy of calculation of the liquid density from the mixing ratio of Triton X-100 to water. Performance tests to confirm the suitability of this liquid are given. © 2014 Elsevier Ltd. All rights reserved. |
| URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-84906855929&partnerID=40&md5=23e8040a00453e970de595bbd45fdf35 |
| DOI | 10.1016/j.measurement.2014.08.001 |
