Amines flammable range

Dimethylamine, (CH3)2NH, an amine hydrocarbon derivative, is a gas with an ammonia-like odor. It is a dangerous fire risk, with a flammable range of 2.8 to 14% in air. It is insoluble in water. The vapor density is 1.55, which is heavier than air. The boiling point is 44°F, and the ignition temperature is 806°F. Dimethylamine is an irritant, with a TLV of 10 ppm in air. The four-digit UN identification number is 1032. The NFPA 704 designation is health 3, flammability 4, and reactivity 0. The... 

There are seven hydrocarbon-derivative families whose primary hazard is flammability (see Chapter 2, Figure 2.63) alkyl halide, amine, ether, alcohol, ketone, aldehyde, and ester. The alkyl halides, amines, and ethers are nonpolar. The ethers, alcohols, and aldehydes are polar and have wide flammable ranges. Some organic acids are flammable inorganic acids do not bum. However, flammability is not the primary hazard of most organic acids. They will be discussed in detail in Chapter 10. 

Flammable Range Animal and Vegetable Oils Fire-Extingnishing Agents Flydrocarbons Flydrocarbon Derivatives Alkyl Halide Amines Ethers Alcohol Isomers Ketone Aldehyde Esters... 

They are very soluble in water, alcohols, ethers, and most polar solvents. At low temperatures, aqueous methylamines form crystalline hydrates CH3NH2-3H20, (CH3)2NH 7H2O, and (CH3)3N IOH2O. In the presence of ammonia, methylamines react explosively with mercury so instruments containing mercury should not be used on methylamines. The amines also are flammable in air. Their flammability ranges as well as some of their important physical properties are listed in Tables 28.16 and 28.17. 

Highly flammable, flash point (open cup) 12.8°C (55 F) and 53 C (127.4°F) for 93% commercial grade vapor pressure 30 torr at 20°C (68°F) autoignition temperature 232°C (450°F) vapor density 2.4 (air =1). It can ignite under normal temperature conditions flashback fire risk. It forms explosive mixtures with air within the range of 2.1-15.5% by volume. Explosive polymerization reaction can occur at high temperatures or in contact with alkaline compounds such as caustic alkalies, amines, or NH3. It presents... 

Structural plastic adhesive (3M, Dow, Loctite) Amine-complexed organoborane initiator, methyl methacrylate or high-molecular-weight monomer and elastomer Most are flammable/ volatile and very slow fixture. Good adhesion to a wide range of materials including polyolefins and tough, environmentally resistant bonds. 

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