Explosive photographic development

Benzene and its derivatives are extremely important substances. They are used in the manufacture of drugs, explosives, photographic developers, plastics, synthetic dyes, and many other substances. For example, the substance trinitrotoluene, C H.j(CH.3)(NOo)3, is an important explosive (TNT). The structure of this substance is... 

Uses Mfg. of diaminophenol, picric acid, picramic acid herbicide reagent for detection of potassium and ammonium ions chemical synthesis biochemical research acid-base indicator polymerization inhibitor in styrene prod. intermediate for prod, of azo dyes. Cl sulfur black 1, Cl sulfur black 2, explosives, photographic developers fungicide for metalcutting oil emulsions, railroad ties, wood, pressure-treated wood wood preservative insecticide, miticide to control mosquitoes formerly as metabolic stimulator to aid in weight reduction... 

Uses Organic synthesis photographic agent manufacture of pesticides, herbicides, explosives, and wood preservatives yellow dyes preparation of picric acid and diaminophenol (photographic developer) indicator analytical reagent for potassium and ammonium ions insecticide. 

Uses. In manufacture of dyes, other organic chemicals, wood preservatives, photographic developer, and explosives... 

Use Dyes, especially sulfur colors picric acid, pi-cramic acid, preservation of lumber, manufacture of the photographic developer diaminophenol hydrochloride, explosives manufacture indicator, reagent for potassium and ammonium ions. 

Dinitrophenols are a class of synthetic organic chemicals that can exist in six individual forms. Dinitrophenols do not occur naturally in the environment. This profile mainly contains information on the most commercially important dinitrophenol, 2,4-dinitrophenol, which is called DNP in this document. Industries manufacture dinitrophenols. DNP is sold under many trade names, some are Caswell No. 392, Sulfo Black B, and Nitro Kleenup. It is a yellow solid with no known smell. It dissolves slightly in water. DNP present in water and soil as a pollutant does not easily evaporate to air. The taste of DNP is not known. Commercial DNP is primarily used for making dyes, other organic chemicals, and wood preservatives. It is also used to make photographic developer, explosives, and insect control substances. You will find further information on the physical properties and uses of DNP in Chapters 3 and 4 of this profile. 

Dinitrophenol (commercial mixture of the 2,3- and 2,6- isomers, but mostly the 2,4- isomer) is used in the synthesis of dyes, picric acid, picramic acid, wood preservatives, diaminophenol dihydrochloride (a photographic developer), explosives, and insecticides, and as a pH indicator. 

MAJOR USES Used in the production of herbicides, pyrethroid insecticides, antioxidants, disinfectants, fumigants, photographic developers, explosives. 

ORIGIN/INDUSTRY SOURCES/USES intermediate in manufacture of wood preservatives, dyes, pesticides, fungicides, miticides photographic developers, explosives an indicator for the detection of potassium and ammonium salts... 

Cresol is used in disinfectants and fumigants, in the manufacture of synthetic resins, in photographic developers and explosives. 

Hazardous Decomp. Prods. Heated to decomp, emits CO, CO2, NOx, ammonia, traces of organic compds. inc. hydrogen cyanide, nitriles, isocyanates, nitrosamines, amines NFPA Health 3, Flammability 4, Reactivity 0 Uses Intermediate in organic synthesis intermediate for water-gel explosives, accelerators, pharmaceuticals, insecticides, N-methylpyrrolidine, methylalkanolamines, surface active agents, fungicides in tanning component of photographic developers and paint removers fuel additive prod, of dyes polymerization inhibitor rocket propellant See also Methylamine... 

Several useful nitrogen-containing molecules react with ketones or aldehydes in a manner that is similar to the reaction of primary amines. Hydroxylamine (96) is essentially a functionalized amine, as is hydrazine (97)—an important compound that was used as rocket fuel many years ago. Hydrazine is still used as a propellant on board space vehicles and in satellites in order to make course corrections. Hydroxylamine may be explosive when concentrated, and shordd be handled with care, but it is used for the removal of hair from animal hides and in photographic developing solutions. ... 

In addition to the April 1921 article in the American University Courier previously quoted, other records also indicate that two new explosives were developed at the AUES anihte (a French explosive) and monomethyl hydrazine nitrate. Hydrazine nitrate is the most interesting because it is still the third most powerful explosive known. Phenol hydrazine has been detected in two groundwater samples a mile apart, raising the specter that hydrazine was an explosive that may have been buried in large quantities. Photographs of tests on mono and anilite exist. 

Uses Intermediate in organic synthesis intermediate for water gel explosives, accelerators, dyes, pharmaceuticals, insecticides, N-methylpyrrolidine, methylal-kanolamines, surface active agents, tungicides in tanning in photographic developers in paint removers fuel additive polymerization inhibitor rocket propellant ... 

Shock waves were obtd in Perspex blocks drilled thru with different diameters (Fig 1). The shock wave which developed at the top of the block as well as in the ambient air in contact with the bottom of the same was photographed using the high-speed photography equipment of Cranz Schardin, provided with explosive lamps of which the... 

In an effort to eliminate wall effects, two spherical methods were developed. In the one discussed here, the gas mixture is contained in a soap bubble and ignited at the center by a spark so that a spherical flame spreads radially through the mixture. Because the gas is enclosed in a soap film, the pressure remains constant. The growth of the flame front along a radius is followed by some photographic means. Because, at any stage of the explosion, the burned gas behind the flame occupies a larger volume than it did as unbumed gas, the fresh gas into which the flame is... 

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