Isomers flammable liquid

CASRN 5103-71-9 DOT 2762 DOT label Flammable liquid molecular formula CioFIgCIs FW 409.78 RTECS PC0175000 Merck Index 12, 2129 (mixed isomers)... 

AMYL ACETATE Amyl Acetate, Mixed Isomers, Pentyl Acetates Flammable Liquid, III 1 3 0 ... 

The xylene isomers are flammable liquids and should be stored in approved closed containers with appropriate labels and away from heat and open flames. The vapor can travel along the ground to an ignition source. In the event of fire, foam, carbon dioxide, and dry chemical are preferred extinguishers. The xylenes are mildly toxic. They are mild skin irritants, and skin protection and the cannister-type masks are recommended. 

Monochlorobenzene is a flammable clear liquid (fp, -45"C bp, 132°C) used as a solvent, solvent carrier for methylene diisocyanate, pesticide, heat transfer fluid, and in the manufacture of aniline, nitrobenzene, and phenol. The 1,2- isomer of dichlorobenzene (ortho-dichlorobenzene) has been used as a solvent for degreasing hides and wool and as a raw material for dye manufacture. The 1,4- isomer (para-dichlorobenzene) is also used in dye manufacture and as a moth repellant and germicide. All three isomers have been used as fumigants and insecticides. The 1,2- and 1,3-(meta) isomers are liquids under ambient conditions, whereas the 1,4- isomer is a white sublimable solid. Used as a solvent, lubricant, dielectric fluid, chemical intermediate, and formerly as a termiticide, 1,2,4-trichlorobenzene is a liquid (fp, 17°C bp, 213°C). 

The xylenes are colorless, flammable liquids with properties that are significantly different from each other or significantly similar to each other, depending upon the perspective and the need for separation of the isomers. 

Uses Xylene occurs in the manufacture of different petroleum products and as an impurity in benzene and toluene. It is a colorless and flammable liquid. Commercial xylene is a mixture of three isomers, namely, ortho-, meta-, and paraisomer. It is extensively used in industries associated with paints, rubber, inks, resins, adhesives, paper coating, solvents, and emulsifiers. It also is used in the manufacture of plasticizers, glass-reinforced polyesters, and alkyl resins. Xylene is used as an important raw material. 

Flammable liquids include organic solvents widely used in silicone production, such as benzene, toluene, xylene (a mixture of isomers), chlorobenzene, methyl, ethyl and butyl alcohols. 

Hexanes occur as a clear, colorless, flammable liquid. It is composed predominantly of C6, with some C5 and C7, isomeric paraffins. The relative proportion of isomers varies with the producer and the production lot. It is soluble in alcohol, in acetone, and in ether and is insoluble in water. 

Pentane is a colorless, flammable liquid (the first liquid member of the alkanes) that is lighter than water. It has a pleasant odor that can be detected at 900 ppm, and a moderate odor intensity is observed at 5000 ppm. It occurs as two other isomers, including isopentane [(CH3)2CHCH2CH3] and neopentane [C(CH3)4]. Isopentane (2-methylbutane) apparently has physical and physiological characteristics similar to straight-chain pentane. Neopentane (2,2-dimethylpropane) is similar to butane in physical and physiological characteristics. In air, one part per million of C5 pentane is equivalent to 3 mgm. ... 

BUTYLENE DICHLORIDE (764-41-0 11069-19-5, mixed isomers) C4H5CIJ Highly flammable liquid. Forms explosive mixture with air [explosion limits in air (vol %) 1.5 to 4.0 flashpoint 126°F/52°C Fire Rating 3 or 4], Contact with water slowly produces hydrogen chloride. Violent reaction with... 

METHYL STYRENE or 3-METHYL STYRENE or 4-METHYL STYRENE or m-METHYL STYRENE or p-METHYL STYRENE mixed Isomers (25013-15-4) C,H,o Flammable liquid. Forms explosive mixture with air (flash point 125°F/51°C). An inhibitor, usually 10 to 50 ppm of tert-butyl catechol, must be present in adequate concentrations to avoid explosive polymerization. Violent reaction with strong oxidizers, strong acids, peroxides and hydroperoxides. Incompatible with catalysts for vinyl or ionic polymers aluminum, aliuninum chloride, ammonia, aliphatic amines, alkanolamines, caustics, copper, halogens, iron chloride, metal salts (e.g., chlorides, iodides, sulfates, nitrates). The uninhibited monomer vapor may block vents and confined spaces by, forming a solid polymer material. On small fires, use dry chemical powder (such as Purple-K-Powder), foam, or CO extinguishers. a-METHYL STYRENE (98-83-9) C,H, Flammable liquid. Forms explosive mixture with air [explosion limits in air (vol %) 0.9 to 6.1 flashpoint 129°F/54°C autoignition temp 1066°F/574°C Fire Rating 2]. Easily polymerizable. Unless inhibited, forms unstable peroxides. Reacts with heat and/or lack of appropriate inhibitor concentration. Reacts with catalysts for vinyl or ionic polymerization, such as aluminum, iron chloride or 2,5-dimethyl-2,5-di(ieri-butylperoxy)hexane. Violent reaction with... 

CHEMICAL PROPERTIES flammable liquid hazardous polymerization may occur when subjected to elevated temperatures, oxidizing materials, peroxides, or sunlight usually contains inhibitors to prevent polymerization uninhibited monomer vapor may form polymer in confined spaces prolonged contact with air may form organic peroxides reacts with alkalies and alkali metals, such as aluminum slowly decomposes on exposure to air, light and moisture, forming hydrogen chloride FP (18-21°C, 36-39°F) LFL/UFL (5.6%, 12.8%) AT (460°C, 860°F) HF (cis isomer -26.4 kJ/mol, trans isomer -23.1 kJ/mol liquid at 298.15K). 

The last factor that affects the boiling point of a flammable liquid is branching. (Branching was discussed in Chapter 4 under Isomers in the Hydrocarbon section.) Branched compounds are all manmade. Since branching does not occur naturally, it is done for a particular purpose, usually because there is an economic value. When... 

Highly flammable liquid flash point —6°C (21°F) autoignition temperature (for mixed isomers) 264°C (507.2°F) forms explosive mixtures with air, LEL 1%, UEL 7% by volume... 

A substance is a hazardous chemical if it is a physical hazard or a health hazard . A flammable or explosive liquid is a physical hazard . A flammable liquid means any liquid having a flash point below 110 F (37.8 C), except any mixture having components with flashpoints of 100 F (37.8 C) or higher, the total of which make up 99% or more of the total volume of the mixture . Health hazard means a chemical for which diere is statistically significant evidence based on at least one valid study that acute or chronic health effects may occur in exposed employees . Hexane and all the solvents listed in Table 14.10.3 would require a MSDS, since all are flammable liquids (physical hazards) as defined by OSHA and/or possible healfli hazards because all, except hexane isomers, have an U.S. OSHA PEL. However, hexane isomers have an American Conference of Industrial Hygien-... 

Process Safety Management (PSM) Standard (29 CFR 1910.119) PSM is for the prevention or minimization of the consequences of catastrophic releases of toxic, reactive, flammable, or explosive chemicals. This regulation applies to all processes that involve one or more of 137 listed chemicals (29 CFR 1910.119, Appendix A) above their threshold quantities or have 10,000 lbs. or more of a flammable liquid or gas, as defined by the U.S. OSHA HCS [29 CFR 1910.1200(c)], This includes n-hexane, hexane isomers, and all solvents listed in Table 14.10.3. 

TrimethylsiIyloxy-l,3-butadiene [6651-43-Oj M 142.3, b 131"/760mm (mixt of isomers), 49.5"/25mm ( -isomer), d 0.8237, n 1.447. Purified by fractional distn and collecting the fractions with the required H NMR. Store under N2 — it is a flammable and moisture sensitive liquid. [Caseau et al. Bull Soc Chim Fr 16658 7972 Beige Patent 670,769, Chem Abstr 65 5487d 7966.]... 

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