Pesticide propellants

Use Acid-gas absorbent, solvent antioxidants, manufacture of dimethylformamide and dimethylacet-amide, dyes, flotation agent, gasoline stabilizers, pharmaceuticals, textile chemicals, rubber accelerators, electroplating, dehairing agent, missile fuels, pesticide propellant, rocket propellants, surfactants, reagent for magnesium. 

Dimethylamine is used as an intermediate for dye production, gasoline stabilizers, missile fuels, pesticide propellants, surfactants, and textile chemicals. 

Sprays. Aerosol spray emulsions are of the water-in-oil type. The preferred propellant is a hydrocarbon or mixed hydrocarbon—hydrofluorocarbon. About 25 to 30% propellent, miscible with the oil, remains in the external phase of the emulsion. When this system is dispensed, the propellant vaporizes, leaving behind droplets of the w/o emulsion (Fig. 2b). A vapor tap valve, which tends to produce finely dispersed particles, is employed. Because the propellant and the product concentrate tend to separate on standing, products formulated using this system, such as pesticides and room deodorants, must be shaken before use. 

Of major concern are the health and environmental impacts of the abundant chlorinated and brominated hydrocarbons (ref. 2). These materials have numerous industrial applications as pesticides, solvents, propellants, refrigerants, plastics, fire retardants and extinguishers, disinfectants for drinking water, pharmaceuticals and electronic chemicals. Many chemical manufacturers utilize chlorinated and brominated organics as intermediates. It is estimated, for instance, that almost 85 % of the pharmaceuticals produced in the world require chlorine at some stage of synthesis. 

Ammonium thiocyanate is used as an ingredient in antibiotic fermentations, pesticides, liquid rocket propellants, adhesives, and matches in photographic processes to improve the strength of silks in the manufacture of transparent artificial resins and as a weed killer and defoliant (Sax and Lewis 1987 Windholz 1983). 

Uses Manufacture of fire extinguishing agents, propellants, refrigerants, and pesticides organic synthesis. 

Synonyms AI3-01708 Algofrene type 2 Arcton 6 Caswell No. 304 CCRIS 3501 Dilluorodi-chloromethane Electro-CF 12 EPA pesticide chemical code 000014 Eskimon 12 F 12 EC 12 Fluorocarbon 12 Freon 12 Freon F-12 Frigen 12 Genetron 12 Halon Halon 122 Isceon 122 Isotron 2 Kaiser chemicals 12 Ledon 12 Propellant 12 R 12 RCRA waste number U075 Refrigerant 12 Ucon 12 Ucon 12/halocarbon 12 UN 1028. 

Uses Solvent for nitrocellulose cellulose acetate cellulose acetobutyrate cellulose aceto-propionate, waxes, fats, dyestuffs, vinyl, and alkyd resins experimental propellant fuel additive organic synthesis (FriedeLCrafts reactions) manufacture of pharmaceuticals and pesticides. 

Uses Organic synthesis vapor degreasing and cold cleaning solvent for fabricated metal parts textile processing aerosol propellants synthesis of fluoropolymers production of various coatings and inks may be ingredient in adhesives, cutting oils, and aerosol formulations pesticide. 

The chloride is used to manufacture silicones, tetramethyl lead and triptane (2,2,3 trimethylbutane). Lesser uses include the manufacture of butyl rubber, higher halogenated methanes, methyl cellulose, quaternary ammonium compounds, methyl mercaptan, methionine, fungicides and pesticides (primarily the Me-arsenate herbicides). Recently the chlorinated fluorocarbons have replaced CH3CI as high volume refrigerants and propellants (ref. 32) Tables 12 and 13 list the chemical and physical properties and potential numbers of workers exposed to the monohalomethanes. 

Aliphatic and alicyclic amines form one of the most extensively used categories of compounds in a variety of manufacturing industries. These compounds are first-phase materials for chemical synthesis, intermediates, pharmaceuticals, pesticides, soil sterilizers, and several kinds of solvents, rubber products, rocket propellants, and plastic monomers. This chapter discusses the safety and toxicity of selected compounds handled by workers in different industries. More information and extensive literature are available in several study reports on members of this important group.31,32... 

There are many kinds of control valves. Mechanical valves must be accessible to the operator s hand electrically operated valves permit remote control of flow. For tractors or self-propelled sprayers with enclosed cabs, the remote-controlled valves permit all hoses carrying pesticides to be kept safely outside the cab. 

Halogenated Chloroform, 1,1,1-trichloroethane, trichloroethylene, methylene chloride, p-dichlorobenzene Pesticides dry-cleaning solvents aerosol propellants degreasing agents paint strippers... 

Aerosol propellants, perfumes, deodorants, fire extinguishers By-product of trichloroethylene manufacturing Pesticide manufacture Solvents, pesticide manufacture, degreasers... 

Use Rubber antioxidants and accelerators, solid rocket propellants, pesticides, dyes, pharmaceuticals, veterinary medicine, storage preservation of apples, stabilizer for nitrocellulose, analytical chemistry. 

Pharamaceuticals Biochemicals Food products Industrial chemicals Pollutants Forensic chemistry Clinical medicine Antibiotics, sedatives, steroids, analgesics Amino acids, proteins, carbohydrates, lipids Artificial sweeteners, antioxidants, aflatoxins, additives Condensed aromatics, surfactants, propellants, dyes Pesticides, herbicides, phenols, polychlorinated biphenyls (PCBs) Dmgs. poisons, blood alcohol, narcotics Bile acids, drug metabolites, urine extracts, estrogens... 

Freon a clear liquid with a sweet smell that is manufactured and does not occur naturally. Freon is most often found as a colorless gas. It s not flammable and doesn t dissolve in water very easily. It was once used in the production of refrigeration fluid and propellants for aerosol cans, as a pesticide, as a cleaning fluid and degreasing agent, in fire extinguishers, and in spot removers. These uses have been banned since the early 1990 s and it is now only used in some industrial applications. 

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