Doesnt matter if its 70%, 99%, or 100% For the same blown engine on alcohol at a richer mixture, 32 degrees of timing is common. Winegrowers Supplies - alcohol and temperature, and the danger of ignition.. Ethanol, also called ethyl alcohol, pure alcohol, grain alcohol or drinking alcohol, is a volatile, flammable colourless liquid with the structural formula CH 3 CH 2 OH, often abbreviated as C 2 H 5 OH or C 2 H 6 O.. (For these values, the initial temperature of air, gas, and oxygen is 20 °C.) HAZARDS IDENTIFICATION HIGHLY FLAMMABLE (R16 S43) FLASH POINT: (R11) 9°C IGNITION TEMPERATURE: 425°C EXPLOSION LIMITS: LOWER: 3.5%v/v UPPER: 19%v/v PROTECTION AGAINST FIRE & EXPLOSION: Combustible vapours heavier than air. Flash point should not be mistaken with fire point, which is defined as the minimum temperature at which the hydrocarbon will continue to … Sensitive to static discharge. Example: For blown gasoline at around 2 atmospheres, 28 degrees of ignition timing is common for best power. Auto-ignition temperature 363°C (685.4°F) – (Ethyl Alcohol) Decomposition temperature Specific data not available Formula (ETHANOL) C 2 H 6 O Formula (ISOPROPYL ALCOHOL) C 3 H 8 O Formula (METHYL ALCOHOL) CH 4 O Molecular Weight (ETHANOL) 46.07 g/mol Ignition Temperatures of Materials Auto-ignition temperature - the minimum temperature required to ignite a dry material in air without a spark or flame being present: Fuel or Chemical May form explosive mixtures with air. Water spray may only be used to keep fire exposed Storing food containing alcohol overnight with no heat applied resulted in 70 percent retention. Sensitive to static discharge. The surrounding temperature around a storage tank should always be less than the flash point of the fuel to avoid possibility of ignition. Fire Extinguishing Media: Vapors can flow along surfaces to distant ignition source and flash back. Extinguishing media: Dry chemical, alcohol-resistant foam or carbon dioxide. Adiabatic flame temperatures for common gases are provided for air and oxygen. Flaming the liquid to burn off the alcohol still allowed for 75 percent retention. Ignition Temperatures and Group Classifications for Flammable Gases and Vapors MATERIAL GROUP AUTOIGNITION TEMPERATURE DEGREES F DEGREES C Acetaldehyde C 347 175 ... Diacetone Alcohol D 1118 603 o-Dichlorobenzene D 1198 647 1.1-Dichloroethane D 820 438 1.2-Dichloroethylene D 860 460 Dicylopentadiene C 937 503 Heat (about 400 degrees C) + alcohol vapour = self ignition Make sure you have a sign on all entrance doors warning of the hazards. More enrichment of alcohol fuels usually needs more ignition timing. Contact with strong oxidizers may cause fire or explosion. Ignition delay times of the three C5 primary alcohol isomers (n-pentanol, iso-pentanol and 2-methyl-1-butanol) were measured behind reflected shock waves.Experiments were conducted in the temperature range of 1100–1500 K, pressures of 1.0 and 2.6 atm, equivalence ratios of 0.25, 0.5 and 1.0, and O 2 concentration in the fuel/O 2 /Ar mixtures varying from 3.75% to 15%. P.S. The highest amount of alcohol remains when alcohol is added to boiling liquid and then removed from heat. Vapors can flow along surfaces to distant ignition source and flash back. Sodium hydroxide needs to be handled very carefully as it can cause skin / eye burns so gloves and goggles are required. Explosion: Above flash point, vapor-air mixtures are explosive within flammable limits noted above. Ive searched all over the place, and i cant find it. 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