Flammable liquids cyclohexane

Shipping name AN-64, Toxic Liquids, Flammable, Organic, N.O.S. (2-amino-2-methylpropanenitrile). AN-67, Toxic Liquids, Flammable, Organic, N.O.S. (2-amino-2-methylbutanenitrile). AN-52, Toxic Liquids, Flammable, Organic, N.O.S. (2-amino-2,4-dimethylpentanenitrile). AN-88, Flammable Liquids, Toxic, N.O.S. (1-amino cyclohexane carbonittile). 

First, the released material must be flammable and at suitable conditions of pressure or temperature. Such materials include liquefled gases under pressure (e.g., propane, butane) ordinary flammable liquids, particularly at high temperatures and/ or pressures (e.g., cyclohexane, naphtha) and nonliquefled flammable gases (e.g., methane, ethylene, acetylene). 

Clear, oily, flammable liquid with a faint odor resembling cyclohexane, cyclooctane, or gasoline. 

Clear colorless, very flammable liquid with a faint odor similar to benzene or cyclohexane. An odor threshold concentration of 150 ppbv was reported by Nagata and Takeuchi (1990). 

CYCLOHEXANE Hexahydro-benzene, Hexamethylene, Hexanaphthene Flammable Liquid, I 1 3 0... 

Cyclohexane, the six-carbon ring hydrocarbon with the molecular formula C6H12, is the most significant of the cyclic alkanes. Under ambient conditions it is a clear, volatile, highly flammable liquid. It is manufactured by the hydrogenation of benzene and is used primarily as a raw material for the synthesis of cyclohexanol and cyclohexanone through a liquid-phase oxidation with air in the presence of a dissolved cobalt catalyst. 

The plant was on low-lying land on the banks of the Trent River and surrounded by fields. The Flixborough plant produced caprolactam, a basic raw material for making Nylon 6. The process area consisted of six reactors in which heated and pressurized liquid cyclohexane was oxidized by introducing air and catalyst. The vertical reactors were about 12 ft. (3 m) in diameter and about 16 ft. (5.3 m) high. The reaction only converted about 6 percent of the cyclohexane, while 94 percent of the flammables were recirculated, resulting in large inventories relative to the production rates. [16]... 

Synonyms and trade names benzene, benzine, benzol, aromatic hydrocarbon Uses and exposure Benzene is a colorless, flammable liquid with a pleasant odor. It is used as a solvent in many industries, such as rubber and shoe manufacturing and in the production of other important substances such as styrene, phenol, and cyclohexane. It is essential in the manufacture of detergents, pesticides, solvents, and paint removers. It is present in fuels such as in gasoline up to the level of 5%. There are several uses for benzene. ... 

A flammable chemical substance is a solid, liquid, vapor, or gas that ignites easily and burns rapidly in air. Many of the flammable chemicals used in laboratories are flammable liquids and organic solvents. The vapors of these chemical substances form ignitable mixtures with air. Based on the flash points of these chemicals, classifications are made. The flash point of a chemical substance is defined as the lowest temperature at which a fuel-air mixture present above the surface of a liquid will ignite, if an ignition source is present. The common flammable chemical substances include, but are not restricted to, acetone, benzene, cyclohexane, ethanol, ethyl acetate, ethyl ether, gasoline, hexane, isopropyl alcohol, methanol, propanol, tetrahydro-furan and toluene, and xylene. 

If the sample is viscous, warm it with intermittent mixing or shaking until it is completely fluid. Transfer a representative sample (approximately 2 g) to a 25-mL weighing bottle or flask. Determine the weight of the sample to the nearest 1 mg by weighing the flask before and after sample transfer. Add 10 mL of -pentane (Warning— Extremely flammable liquid.) to the flask and dissolve the sample. If the sample does not dissolve completely in cold -pentane, warm it in warm water or over a steam bath. If the sample does not dissolve in warm n-pentane, take a fresh sample and substitute cyclohexane for the n-pentane. 

Avoid breathing cyclohexane, hexane, adipoyl chloride, or sebacoyl chloride vapors. Work carefully to avoid skin contact with any of the liquid reagents wear chemically resistant rubber gloves. Do not ingest reagents. Avoid eye contact wear chemical safety goggles. Cyclohexane, hexane, acetone, and alcohol are flammable keep away from heat and open flames. Follow precautions on the containers. The nylon rope should not be handled with bare hands until after it has been washed thoroughly with alcohol and dried. 

Cyclohexene (1,2,3,4-tetrahydrobenzene [CAS 110-83-8]) By structural analogy to cyclohexane, may cause respiratory tract Irritation, ACNS depressant. 300 ppm 2000 ppm 1 3 0 Coloriess liquid with a sweet odor. Vapor pressure Is 67 mm Hg at 20°C (68°F). Flammable. Readily forms peroxides and polymerizes. 

In industry, this reaction is conducted at elevated pressure (10-30 bar) and temperature (80-250 °C). Under such conditions, the content of oxygen must be kept low to avoid the explosive regime. Also, the cyclohexane conversion is kept low (<5%) to avoid the formation of side products. In a microreactor, composition and temperature of the gas phase far above the flammability limit of 4% are possible. A selectivity of 88% was observed. However, it is shown that despite the narrow channels, gas-liquid mass transfer still limits the rate of reaction so that further engineering of a reactor is required that will enable mass transfer free operations and oxygen refilling. 

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