Illuminating gas

During the following years a brilliant series of inventions at his laboratoiy earned Edison the appellation Wizard of Menlo Park. As early as 1878, the mere announcement that Edison intended to produce a practical electric light was sufficient to cause the price of gas illumination stock to fall sharply. 

Grenade. A small explosive or chemical missile which can be either thrown by hand (Hand Grenade), or be projected from the muzzle of a rifle or carbine (Rifle Grenade). Many varieties exist, such as antipersonnel, antitank, chemical, concussion (offensive), defensive, fragmentation, frangible, gas, illuminating, incendiary, practice, riot, smoke and training (Ref 40a, pp 84-51)... 

Gas, Illuminating. A gas used for production of light. It is prepd by distillation of bituminous coal in small horizontal or vertical retorts. Other combustible gases may be used for this purpose, provided they contain sufficient amts of ilium in ants, such as benzene or ethylene. Some illuminating gases contain "natural gas" mixed with other gases (See also under Gas, Coal)... 

Illuminating Gas is formed by the destructive distillation of coal. It is a mixture of many gases, and its composition varies with the coal employed. The constituents are divided into three classes, viz. illuminants, diluents, and impurities. The first class contains, among other gases, ethylene and acetylene. Marsh gas, hydrogen, and carbon monoxide, all of which burn with a feeble — non-yellow — flame, are the most common diluents. The common impurities are carbon dioxide, hydrogen sulphide, and ammonia some of these, however, are entirely removed from the purified gas. Illuminating gas prepared as above is often called coal gas. 

Give the components (if a compound) or the main constituents (if a. mixture) of kerosene, petroleum, natural gas, illuminating gas, naphtha, gasoline, turpentine, benzine, benzene. 

Gas oil above 500°F, vegetable oil Liquid naphtha above 500°F, quenching oils Topped crude (below 25°API), fuel oil Cracked residuum, coke-oven gas, illuminating gas... 

Preliminary Observations—Gas Illumination—Preservation of Wood—Dyeing and Calico Printing. 

State of the art models of photodissociation regions today involve hundreds of chemical species, thousands of chemical reactions, and tens of physical and chemical processes in order to accurately describe the physical and chemical structure of a piece of gas illuminated by FUV photons. This degree of sophistication cannot yet be implemented in 3D dynamical models. Most PDR models are therefore steady-state and one dimensional, with ongoing developments towards simplified three... 

City gas (illuminating gas), benzene-free, commercial grade 20 A 20 A... 

Coal gas (illuminating gas) 20 C resistant when gas does not contain benzene ... 

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