Method for testing gasoline for water and alcohol in the presenc

Details Method for testing gasoline for water and alcohol in the presenc Method for testing gasoline for water and alcohol in the presenc

1992-04-02

1993-07-20

Housel, James C.

Chemistry: analytical and immunological testing

Determination of water

436 40, 436 60, 436166, G01N 3318, G01N 3322

Patent

active

052292959

ABSTRACT:
An environmentally compatible method for field testing gasoline, and other liquid hydrocarbons, for the presence of water and/or alcohol in the presence or absence of the other utilizing colorimetric reagents comprising methylene blue dye, anhydrous sodium borate and gentian violet dye in suspension with mineral oil. When alcohol is present a volumetric test using dilute nitric acid is further described to measure its percentage in the fuel.

REFERENCES:
patent: 2950958 (1960-08-01), Nesh
patent: 3341298 (1967-09-01), Pietrangelo
patent: 3528775 (1970-09-01), O'Hara et al.
patent: 3833340 (1974-09-01), Jones et al.
patent: 4578357 (1986-03-01), Melpolder
patent: 4617278 (1986-10-01), Reed
patent: 4717671 (1988-01-01), Melpolder
patent: 4962039 (1990-10-01), Benedyk
The Merck Index, 10th Ed., 1983, pp. 627-628 & 1231.

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