Dimethyl Ether Flammability Limits

The lower flammability limit of dimethyl ether reported by different authors was in good agreement with each other while large deviation was shown with regard to the upper flammability limit.

Dimethyl ether flammability limits. Lower flammability limit lfl. Figure 83 limits of flammability of diethyl ether carbon dioxide air and diethyl ether nitrogen air mixtures at 250 c and atmospheric pressure. The simplest ether it is a colorless gas that is a useful precursor to other organic compounds and an aerosol propellant that is currently being demonstrated for use in a variety of fuel applications it is an isomer of ethanol. The limits of the systems diethyl ether helium oxygen and diethyl ether nitrous oxide oxygen are.

Dimethyl ether is a colorless highly flammable gas b. Below the explosive or flammable range the mixture is too lean to burn and above the upper explosive or flammable limit the mixture is too rich to burn. Limits lower flammability limit. 24 c slightly toxic.

Dimethyl ether dme also known as methoxymethane is the organic compound with the formula ch 3 och 3 simplified to c 2 h 6 o. Upon standing and exposure to air oxygen tendency to form explosive peroxides. I flammability solid gas no data available j upper lower upper explosion limit. A carrier for a hair care product containing polyvinylpyrrolidone was prepared with 77 04 g 70 aq dimethyl ether 14 11 g dimethyl ether 1 09 g co2.

Limit of the cool flame region in air is 48 4 vol ume percent according to burgoyne and neale 26. Very dangerous fire and explosion hazard when exposed to flame sparks heat or strong oxidizers. The term is considered by many safety professionals to be the same as the lower explosive level lel. 1 8 v explosive limits k vapour pressure 189 hpa at 0 c 389 hpa at 10 c 563 hpa at 20 c 863 hpa at 30 c 1 228 hpa at 40 c 2 311 hpa at 60 c l vapour density 2 56 air 1 0.

The limits are commonly called the lower explosive or flammable limit lel lfl and the upper explosive or flammable limit uel ufl. Cyanogen 6 6 32 0 methyl vinyl ether 2 6 39 0. Occupational exposure limit oel values are derived within two legal frameworks that form an integral part of the eu s mechanism for protecting the health of workers. Lower and upper explosive limits for flammable gases and vapors lel uel before a fire or explosion can occur three conditions must be met.

Flammability limits for pure dimethyl ether were measured and the results were listed in table 2. Violent reaction with aluminum hydride lithium aluminum hydride. Dimethyl ether 3 4 27 0 tetrahydrofuran 2 0. An aerosol mixt contains dimethyl ether 28 97 38 5.