Method for testing gasoline for water and alcohol in the presence or absence of the other

Patent · Tue Jul 20 00:00:00 EDT 1993

OSTI ID:6372136

Travis, B B

A method is described for detecting the presence of water from a chemical color reaction comprising the steps of: (A) preparing a suspension of approximately 2% anhydrous sodium borate plus 0.1% methylene blue dye in mineral oil; (B) contacting said suspension with a sample of fuel to be tested; (C) reacting any water in said sample of fuel with said suspension to produce a color change; observing said color change if water is present in said fuel, wherein said fuels comprise liquid hydrocarbon fuel. A method is described for detecting the presence of alcohols in fuels from a chemical color reaction comprising the steps of: (A) preparing a suspension of approximately 0.1 % gentian violet dye in mineral oil; (B) contacting said suspension with fuel to be tested; (C) reacting any alcohol in said sample of fuel with said suspension to produce a color change; observing said color change if alcohol is present in said fuel, wherein said fuels comprise liquid hydrocarbon fuel. A method is described for measuring the amount of alcohol in fuels from a chemical extraction comprising the steps of: (A) preparing an aqueous solution consisting of 9% nitric acid; (B) preparing a test vial with a graduated numerical scale thereon; (C) contacting fuel to be tested with said nitric acid solution in said test vial; (D) observing the percentage of alcohol if present in the fuel on said graduated numerical scale by result of a change in their respective volumes resulting in the formation of a dark colored solution being readable in the bottom part on said scale; wherein said fuels comprise liquid hydrocarbon fuel.

• Assignee: IMS; EDB-93-102612
• Patent Number(s): US 5229295; A
• Application Number: PPN: US 7-862201
• OSTI ID: 6372136
• Resource Relation: Patent File Date: 2 Apr 1992
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
ALCOHOLS
QUALITATIVE CHEMICAL ANALYSIS
QUANTITATIVE CHEMICAL ANALYSIS
GASOLINE
CHEMICAL ANALYSIS
WATER
COLOR
DETECTION
DYES
METHYLENE BLUE
NITRIC ACID
OILS
AMINES
ANTI-INFECTIVE AGENTS
ANTIMICROBIAL AGENTS
AZINES
CHLORIDES
CHLORINE COMPOUNDS
DRUGS
FUELS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INORGANIC ACIDS
LIQUID FUELS
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
ORGANOLEPTIC PROPERTIES
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
PHENOTHIAZINES
PHYSICAL PROPERTIES
023000* - Petroleum- Properties & Composition