Abstract: A solution of sodium ammonium phosphate is prepared by reacting monoammonium phosphate with sodium carbonate in a vertical column having vapor-liquid contact means at a temperature in the range of 150.degree.F. up to the boiling point.

Abstract: An improved method and apparatus for the measurement of amounts of free available chlorine in solution which is independent of the pH have been developed. The apparatus includes a sensing electrode, which is internally buffered and self-cleaning, and a reference electrode supported within a container. A potential measuring means is connected between the electrodes. The solution containing the available chlorine is introduced to the container through an inlet and is released through an outlet.The improvement comprises employing as the sensing electrode a porous conductive material having means for internally supplying a pH control solution.Employing the apparatus, residual amounts of an oxidizing or reducing agent in solution can be continuously measured, independent of the pH of the solution. In addition, the electrode surface is continuously cleansed by the pH control solution.

Abstract: Low foaming biodegradable, liquid, non-gelling and nonionic surfactants are claimed having the formula: ##EQU1## wherein R is a linear, alkyl hydrocarbon having an average from about 7 to 10 carbon atoms, R' is a linear, alkyl hydrocarbon of about 1 to about 4 carbon atoms, R" is a linear, alkyl hydrocarbon of about 1 to about 4 carbon atoms, x is an integer of about 1 to about 6, y is an integer of about 4 to about 15 and z is an integer of about 4 to 25.

Abstract: A process for obtaining improved bend properties in copper base alloys with retention of other desirable characteristics thereof. The process is characterized by a final cold reduction with a large number of passes coupled with a small reduction per pass.

Abstract: 1. A composition for lining the combustion chamber of a rocket motor employing a solid propellant comprised of an epoxy resin, a copolymer of butadiene and acrylic acid, a curing agent, and between about 2.5 and about 30 per cent by weight of an inert inorganic filler selected from the group consisting of carbon, ferric oxide, titanium dioxide and mixtures thereof.

Abstract: A pyrotechnic signal such as a flare, smoke signal, or the like, which is provided with a hollow plastic handle into which the pyrotechnic mass is telescopingly received. For storage, the pyrotechnic mass is positioned within the handle and for use the pyrotechnic mass is partially withdrawn from the handle. The handle may be rendered water-tight so that the signal can be used in marine environments and will float on water.

Abstract: An improved integrated route to bis(2-pyridyl-1-oxide) disulfide is provided wherein a solution of 2-mercaptopyridine-1-oxide formed by oxidizing 2-chloropyridine with peracetic acid to form a reaction mixture of 2-chloropyridine-1-oxide which is then mercaptized, is reacted with in situ generated hypochlorous acid at a pH in the range of 4-8, the hypochlorous acid being generated by chlorinating the solution of 2-mercaptopyridine-1-oxide in the presence of a base selected from the group consisting of an alkali metal hydroxide, carbonate, bicarbonate or combinations thereof.

Abstract: A continuous process for the manufacture of calcium hypochlorite in which an aqueous slurry of lime and sodium hypochlorite is chlorinated in a mixing zone to form a sodium chloride solution containing large crystals of calcium hypochlorite which are readily separated and dried. The resulting solution containing some dissolved calcium hypochlorite is reacted with an alkali metal hydroxide to precipitate lime, which is separated and recycled to the mixing zone slurry. The lime-free solution may be used as bleach liquor or processed to precipitate solid salt useful in the preparation of brine. The remaining solution is recycled to the mixing zone slurry. Purification of fresh lime is also disclosed.The process provides an improved separation of calcium hypochlorite and sodium chloride, and recycles all solutions to minimize pollution of water resources.

Abstract: Alkoxyanilines are prepared in a one-step operation by reacting selected nitrobenzenes with selected alcohols and a deoxygenating agent in the presence of anhydrous hydrogen fluoride.

Abstract: Calcium hypochlorite compositions, suitable for bleaching and sanitation uses, are provided which have improved resistence to exothermic decomposition. These novel compositions are granules comprised of a core of calcium hypochlorite encapsulated with a coating comprised of a mixture of calcium hypochlorite dihydrate and a water soluble inorganic salt which is non-reactive with and stable in contact with calcium hypochlorite. Generally the coating comprises from about 5 to about 60 percent by weight of each granule and the proportion of water soluble salt ranges from about 0.1 to about 15 percent by weight of each granule. The granular product also resists dusting and caking and has improved retention of its available chlorine on storage.

Abstract: A method for preparing aliphatic and cycloaliphatic isothiocyanates comprising reacting a selected aliphatic or cycloaliphatic nitro compound with a sulfur containing carbon compound in the presence of a metal carbonyl catalyst.

Abstract: Improved copper alloys containing from 7 to 14% nickel, from 1.5 to 3.3% tin, plus iron and/or cobalt in an amount from 0.1 to 3% each. The alloys are characterized by good strength, good bend properties, good solderability and low contact resistance.

Abstract: Shot for use in ammunition with each shot pellet having six equally spaced, substantially flattened faces joined by spherical portions which can be randomly packed in a container with a density about 14 per cent greater than the packing density obtained with standard spherical shot of the same weight.

Abstract: Novel molybdenum salt catalysts and a method of preparing them are described. The catalysts, which are useful in epoxidation reactions, are prepared by reacting an oxygen-containing molybdenum compound, hydrogen peroxide and an amine, and optionally water or an alkylene glycol, at elevated temperatures.

Abstract: An improved metal anode assembly formed as an integral titanium casting which is comprised of a spider-like distributor having an anodic surface secured to the bottom thereof. At least one anode post receiver is formed in the top of the distributor. The active face of the anodic surface is coated with at least one oxide of a platinum group metal. Utilizing cast titanium to form the distributor, the anode post receiver and the anodic surface of the metal anode assembly of this invention simplifies fabrication of the metal anode assembly and improves the durability and stability of the metal anode assembly.

Abstract: A method for preserving certain organic fluids is provided wherein an inhibitory amount of a selected 1,10-phenanthroline is incorporated in such fluids as a biocide.

Abstract: A method and apparatus for grinding work pieces having internal chambers comprising loading blank work pieces onto respective ones of a plurality of mandrels provided on a rotatable member which member is rotatable about an axis of rotation extending parallel to the mandrels, the mandrels being equi-spaced about the axis of rotation; rotating the blanks on the mandrels; rotating a profiled grinding wheel; effecting rotary indexing of the rotatable member such that each of the blanks thereon successively moves relatively rapidly from a position spaced from the grinding wheel toward the grinding wheel to a position immediately adjacent the grinding wheel, moves relatively slowly from the adjacent position into contact with the grinding wheel and stops at the contact position for grinding to be completed, then moves rapidly away from the grinding wheel; and ejecting the ground work piece from the mandrel. Means are also provided for forming a through-passage axially in the work pieces.

Abstract: Selected tetrafunctional methylene-bridged aromatic isocyanates and a method for their preparation are disclosed. The utility of these isocyanates as cross-linking agents for polyurethanes is also disclosed.

Abstract: A powder-actuated tool includes a housing and a barrel assembly moveable therein and extending therefrom. A fastener driving member is moveable in the bore of a barrel assembly between a driving position and a driven position. A muffler member surrounds said barrel assembly external of said housing and forms a chamber between said muffler member and said barrel assembly. Suitable ports are provided in the barrel assembly to vent gases from the bore to the chamber.

Abstract: A fastening gun of the type in which a striker causes the ignition of a charge. A locking member, moveable in a direction transverse to the direction of movement of the striker assembly is provided which is engaged by the striker assembly when the locking member is in its locking position. A trigger member is provided remote from the locking member. An elongated rod member is attached to and extends from the trigger member toward the locking member. Ramp means are provided including an inclined surface which cooperates with the free end of the elongated rod member to raise either the rod member or the ramp means to engage the locking member and move it from its locking position to its unlocking position upon actuation of the trigger.