Abstract: Nephelometric method for sequential determination of protein and fat in a milk sample. Distinct reagent solutions are added to a milk sample which are effective to sequentially form colloidal dispersions of protein and fat, respectively, while effecting solubilization of the other. Nephelometric readings are taken after the addition of each reagent solution and, as a result thereof, the measured turbidity is a direct function of the particular solid dispersed.

Abstract: A method of detecting fluorite in an ore body comprising the steps of activating and dissociating the fluorite by the application of a cation exchange resin reagent, substituting the sodium ions of the activated and solubilized fluorite with a rare earth mineral and reacting the substituted rare earth mineral with an alizarin complexone to colour stain the fluorite whereby the presence of the fluorite may be readily detected.

Abstract: A combustion tube for preparing samples for analysis of pollution materials, such as mercury and lead, or isotopes such as tritium and carbon 14, having at least one group of oxygen-supplying tubes disposed downstream in the tube relative to an organic sample and the direction of the oxygen flow. The combustion tube is surrounded by coiled heating wire to heat the interior of the tube to cause combustion of the sample. A gas inlet is provided upstream of the sample for the injection of oxygen, nitrogen, or the like, and a gas outlet is provided at the extreme downstream end of the tube for the exhaustion of gases contained in the tube. Complete combustion of the sample is assured by providing capillary apertures in the oxygen-supplying tubes for the oxygen to exit therefrom in a fine stream.

Abstract: The trace lead content of gasoline, specifically in lead concentrations of about 0.01 to 0.10 grams of lead per U.S. gallon of gasoline, is determined colorimetrically by the steps of mixing an iodine solution with the gasoline, subjecting the mixture to ultra-violet light and adding an indicator solution containing 4-(2-pyridylazo)-resorcinol disodium salt with agitation and comparing the resulting color to standard indicator solutions.

Abstract: An instrument for quantitative analysis to measure a minute quantity of antigens or antibodies in a sample. There is a defined travel path for holding sample container holding means thereon, moving means coupled to said travel path to move a plurality of containers in a gang along said travel path, a work station including sensing means to sense a passing container in the container gang to align the containers at said work station. Probes at the work station are disposed above the containers when aligned at the work station. Lift means are provided for lowering and raising the probes into and out of the containers so as to add and remove liquid therefrom and program means control the operation of the instrument including the repetitive addition and removal of fluid from the containers whereby reagents are added to said containers, to lay down a film of immunologically active substance on walls of the containers.

Abstract: An apparatus for carrying out chemical reactions in a continuous manner, particularly polymerizations, comprising a substantially axially symmetrical central reaction chamber containing a plurality of vertically spaced substantially axially symmetrical separators dividing said central reaction chamber into a plurality of compartments, a rotatable shaft extending perpendicularly to said separators through each of said separators adapted to mount agitator blades therein for each of said plurality of compartments, means to rotate said rotatable shaft, openings in said separators adapted to allow a restricted flow of liquid between said plurality of compartments, a plurality of ring-shaped conduits, each in communication with one of said plurality of compartments by two unrestricted openings therein, and openings in the topmost and bottommost of said plurality of compartments and in said ring-shaped conduits adapted to receive and dispense fluids; as well as a method of continuous suspension polymerization of vin

Abstract: In the reaction contrivance disclosed which serves the purpose of oxidizing hydrocarbons over a catalyst, with the catalyst being disposed in a casing of the contrivance. Next to an inlet into a reactor disposed in the casing, is a mixing chamber fitted rigidly, and linked with the casing of the contrivance. A separator is arranged at the outlet of the reactor. The mixing chamber provides a means of forming a reaction mixture of the reactants and the catalyst drawn from the casing and into the reactor. By virtue of this arrangement the entire surface of catalyst is in contact with the reactants and the yield of final product increases.

Abstract: A process for vapor phase ammoxidation of hydrocarbons which comprises reacting vapors of ammonia and said hydrocarbon in the presence of a molten salt eutectic mixture of V.sub.2 O.sub.5 and K.sub.2 O, said molten salt being atomized in the presence of said ammonia and hydrocarbon, and, optionally, said spent molten salt being regenerated by air oxidation and recycled for reuse. The invention also embodies an apparatus for the ammoxidation process which comprises a reactor vessel fitted with (a) input means for ammonia and hydrocarbon, (b) an atomizing apparatus within said reactor, (c) means for feeding the molten eutectic salt from an upper reservoir to said atomizing apparatus, (d) a lower reservoir for spent molten salt, and (e) a gas-lift to move said spent salt from said lower reservoir to said upper reservoir.

Abstract: Method for quantitatively determining the presence of chloromethyl methyl ether and/or bis-chloromethyl ether in a fluid.The above compounds are reacted with a reactant from the group consisting of an alkali metal salt of a lower alcohol, an alkali metal salt of phenol or an alkyl phenol, an alkali metal salt of a chlorophenol or bromophenol, an alkali metal salt of an alkoxy phenol, an alkali metal salt of a chlorinated pyridinol, and an alkali metal salt of thiophenol or a chlorinated thiophenol, dissolved in a lower alcohol, to form derivatives which provide suitable stability, specificity and sensitivity when applied to a gas chromatograph utilizing a suitable detector.

Abstract: A combustion chamber device for the purification of process waste gases from poisonous, noisome and/or other noxious constituents by combustion while using a support combustion device and under conditions used in gas turbine technology. The process gases to be purified are fed into the combustion chamber through the axial central inlet thereof, and the combustion chamber is provided with a special inlet for further additional air. A flame tube is disposed inside the combustion chamber wall and spaced therefrom. The flame tube is arranged to be cooled by means of a film of the main part of the further additional air entering through the special inlet.

Abstract: Humidifying composition is introduced into a portable gas sterilizer in droplet form. The composition is packaged in an aerosol can and comprises water, preferably water and organic solvent. Automatic controls effect a predetermined relative humidity in the sterilizer before initiating sterilizing gas introduction.

Abstract: Apparatus for quantitatively determining the presence of chloromethyl methyl ether and/or bis-chloromethyl ether in a fluid.The above compounds are reacted in the apparatus of the invention with a reactant from the group consisting of an alkali metal salt of a lower alcohol, an alkali metal salt of phenol or an alkyl phenol, an alkali metal salt of a chlorophenol or a bromophenol, an alkali metal salt of an alkoxy phenol, an alkali metal salt of a chlorinated pyridinol, and an alkali metal salt of thiophenol, dissolved in a lower alcohol, to form derivatives which provide suitable stability, specificity and sensitivity, and then applied to a gas chromatograph utilizing a suitable detector coupled to a readout device. The apparatus is automated and controlled by timing means.

Abstract: The lead content of gasolines, particularly in concentrations of from 0.00 to 0.10 gram of lead per U.S. gallon of gasoline, is determined colorimetrically by mixing iodine and tetraorganoammonium halide solution with the gasoline, subjecting the mixture to ultraviolet light or heat, agiating the mixture with ammonium nitrate or nitric acid, passing the aqueous phase into 4-(2-pyridylazo)-resorcinol disodium and comparing the resulting color with a standard color scale or a colorimeter to determine the initial lead concentration.

Abstract: A gas-tight chemical reaction vessel for the chemical analysis of an intractable material such as glass. The reaction vessel comprises a body having at least two concentric chambers, one of which is adapted to contain a reagent, at least one other of which is adapted to receive a sample cap which in turn is adapted to receive a sample. The reaction vessel has a sealing member for sealing the chambers of the body and a cap for securing the sealing member against the body. The body, sealing member and sample cap are made of a material, desirably polytetrafluoroethylene, which is chemically inert to the reagents.

Abstract: Preventing corrosion and scale formation in water re-circulating systems by adding to each cubic meter of the water being re-circulated from about 5 to 100 grams of a compound selected from the group consisting of those of the formula ##EQU1## and the water-soluble salts thereof R being hydrogen, alkyl, alkenyl or alkinyl having up to 4 carbon atoms; phenyl; cycloalkyl having 3 to 6 carbon atoms; benzyl; phenethyl or ##EQU2## wherein R' is hydrogen, alkyl having 1 to 4 carbon atoms or carboxyl, R" is hydrogen or methyl and R'" is carboxyl.

Abstract: Corrosion of aluminum metal by sulfuric acid solution is inhibited by addition of soluble fluoride compounds to the acid solutions. Such corrosion inhibition allows use of aluminum as a construction material in process units, particularly sulfuric acid alkylation units, heretofore constructed of heavier and/or more expensive materials.

Abstract: A device for generating gas at a constant rate for raising a water profiler uring measurement of different parameters of the sea. The device is of a specific construction including a housing with end caps. LiH is placed into the housing and capped. A blasting cap ruptures one end cap permitting water to enter the housing. The water mixed with the LiH generates hydrogen gas and LiOH which provides lift for a profiler. A plurality of the gas generators are assembled onto a profiler for causing the profiler to ascend as many times as the number of devices carried by the profiler.