Aniline flash point

Other terms relating to physical properties include viscosity refractive index pour point, ie, the lowest temperature at which the oil flows flash point, ie, the temperature at which the oil ignites and aniline point, ie, the minimum temperature at which equal volumes of oil and aniline are completely miscible. These are determined under defined conditions estabHshed by ASTM. 

The flash point of aniline (70°C) is well above its normal storage temperature but, aniline should be stored and used in areas with minimum fire hazard (70). Air should not be allowed to enter equipment containing aniline Hquid or vapor at temperatures equal to or above its flash point. 

The aniline clo d point is a measure of the paraffinicity of a fuel oil. A high value denotes a highly paraffinic oil while a low value indicates an aromatic, a naphthenic, or a highly cracked oil. The flash point represents the temperature to which a liquid fuel can be heated before a flash appears on its surface upon exposure to a test flame under specified conditions. A knowledge of the flash point is needed to ensure safe handling and storage without fire hazards. 

The oil for an oil-base mud can be diesel oil, kerosene, fuel oil, selected crude oil, or mineral oil. There are several requirements for the oil (1) API gravity = 36° - 37°. (2) flash point = 180°F or above, (3) fire point = 200°F or above, and (4) aniline point = 140°F or above. Emulsifiers are more important in oil-base mud than in water-base mud because contamination on the drilling rig is very likely, and it is very detrimental to oil mud. Thinners, on the other hand, are far more important in water-base mud than in oil-base mud oil is dielectric, so there are no interparticle electric forces to be nullified. 

Diethanolamine (DEA), 2,2 -iminodiethanol di( -ethyloxy)aniline. HN-(CH2CH2OH)2, MW = 105.1. Sp. gr. = 1.097. Flash point = 280 °F. Also used as an absorbent for acidic gases in petrochemical operations. Hygroscopic. Available as a 98.5+% alkyl amine commodity product from various international manufacturers, including Texaco Corporation. Commonly available through chemical distributors. 

Where Tb is the molal average boiling point of the fraction in degrees Rankin and s is the specific gravity of the Iraction. The K-factor can be correlated with other physical parameters of the fraction API gravity and viscosity API gravity and flash point API gravity and aniline point flash point and refractive index. 

Hydrocarbon Solvents. Most hydrocarbon solvents are mixtures. Few commercial hydrocarbon solvents are single compounds. Toluene is an exception. Hydrocarbon solvents are usually purchased and suppHed on specification. The most important specification properties are distillation range, solvency as expressed by aniline cloud point and Kauri-Butanol (KB) value, specific gravity, and flash point. Composition requirements such as aromatic content and benzene concentration are also important in many appHcations. 

The standard tests used to determine the properties of petroleum and petroleum products are commonly applied to grease. Among these are aniline point (ASTM D-611), carbon residue (ASTM D-189,ASTM D-524, ASTM D-4530, IP 13, IP 14, IP 398), fire point (ASTM D-92), flash point (ASTM D-92), pour point (ASTM D-97), and viscosity (ASTM D-445). However, because of the complexity of grease formulations and the variety of uses, many other tests are also deemed necessary to estimate performance in service. Other tests not included in this chapter may be found elsewhere under the test methods for lubricating oil (Chapter 12). Some modification of the test method may be necessary because of the different character of grease vis-a-vis lubricating oU. 

ANILINE CHLORIDE (142-04-1) CjHjClN Combustible solid (flash point... 

ANILINE, 2,6-DIETHYL (579-66-8) C10H15N Combustible liquid (flash point 254°F/123°C cc Fire Rating 1). Vigorous reaction with strong oxidizers. A weak base incompatible with strong acids, mineral acids, organic anhydrides, isocyanates, aldehydes. On small fires, use dry chemical powder (such as Purple-K-Powder), alcohol-resistant foam, or CO2 extinguishers. ANILINE HYDROCHLORIDE (142-04-... 

CHLOROANILINE or m-CHLORO-ANILINE (108-42-9) C H C1N Combustible liquid (flash point 255°F/124°C). Incon atible with strong acids, organic anhydrides, isocyanates, aldehydes, strong oxidizers. See 4-chloroaniline. 

CHLOROANILINE or p-CHLORO-ANILINE (106-47-8) C H C1N Combustible solid [explosion limits in air (vol %) 2.2to uel unknown flash point... 

CHLOROMETHYL OXIRANE (106-89-8) C3H5CIO Highly flammable, polymerizable liquid. Forms explosive mixture with air [explosion limits in air (vol %) 3.8 to 21.0 flash point 69°F/21°C 88°F/31 °C autoignition temp 772 F/411 °C Fire Rating 3]. Reacts violently with water. Contact with elevated temperatures, contamination, strong acids, strong bases, metallic halides, aluminum, aluminum chloride iron(III) chloride and other chlorides of iron or zinc can cause explosive polymerization. Violent reaction with aniline, hypochlorite, isopropylamine, potassium ieri-butoxide (ignition), sulfuric acid. Mixtures with trichloroethylene forms explosive dichloroacetylene. Incompatible with aliphatic amines, alkaline earths, alkali... 

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