Colorimetric detection of alcohols in gasoline
US4608345A · kind A · utility
5Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1984 |
| Grant date | Aug 26, 1986 |
| Priority date | — |
| Expiry date | Nov 5, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/21
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A colorimetric method for detecting the presence of alcohol in hydrocarbons, such as gasoline, is disclosed. The method comprises contacting the hydrocarbon with a mixture comprising: PA1 i. an alcohol soluble, hydrocarbon insoluble dye; and PA1 ii. a solid insoluble in hydrocarbon and alcohol whereby the mixture undergoes a color change in the presence of alcohol. The hydrocarbon sample preferably is contacted with a drying agent to remove dissolved water prior to contacting the mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.