Abstract: Electric discharge lamps of extended life can be produced or cheaper materials used in their manufacture by providing on the internal surface of the envelope and on the exposed surfaces of internal components a protective coating of a metal phosphate or arsenate glass. External surfaces can also be protected against corrosion in air or in the atmosphere within an outer jacket, where this is employed. The coating may be applied in a liquid medium which, preferably after draining, is warmed to evaporate the medium and thereafter baked to form the vitreous coating.

Abstract: The rapid removal of dissolved oxygen from aqueous solutions is accomplished by the use of a composition comprised of a mixture of an aqueous solution of hydrazine and a catalytic proportion of an aryl amine compound. The compositions of this invention are particularly useful in the removal of dissolved oxygen from aqueous solutions such as boiler water, thereby inhibiting corrosion of the metal surfaces of the boiler.

Abstract: A composition for forming a boundary lubricant for metal and ceramic wear surfaces consisting of transition element complexes, including those of the higher molecular weight carboxylic acids such as the long chain fatty acids (C.sub.x H.sub.2x.sub.+1 COOH; x = 8, 9, 10, . . . 29). The transition elements used here are metals such as Cr, Mn, Fe, Co, Ni or Al that can form coordination complexes. Exemplary metal complexes are chromium stearate and chromium behenate.An exemplary complex may be prepared by (1) reducing chromium trioxide by a reducing alcohol in a low molecular weight organic acid to produce chromium acetate; then 2 hydrating and olating the chromium acetate. A solution containing a maximum concentration of about 11 weight percent of the transition metal complex in a solvent such as trichloroethylene is applied as a thin layer onto a wear surface, then the layer is heated for 1-4 hours at a temperature at or above 70.degree.C and, within the approximate range 70.degree.-160.degree.C.

Abstract: Tungsten-halogen lamps of extended life are obtained by coating internal surfaces of the discharge tube and exposed surfaces of internal components with metal phosphate or arsenate glasses. The preferred glass is aluminium titanium phosphate. The coatings may be formed by applying a liquid composition capable of generating the desired phosphate or arsenate to the surfaces to be coated, and subsequently heating them to remove the liquid medium and form a vitreous coating. The medium may be water or an organic solvent such as an alcohol, and may contain a dissolved compound of the metal and an oxyacid of phosphorus or arsenic.

Abstract: A bleaching composition comprising a hydrogen peroxide adduct having the formula:4Na.sub.2 SO.sub.4.sup.. 2H.sub.2 O.sub.2.sup.. NaCland an activating agent.

Abstract: A neutral detergent composition containing a bleaching agent having the formula:4Na.sub.2 SO.sub.4.2H.sub.2 O.sub.2.

Abstract: A process for preparing stable sodium percarbonate, by coating sodium percarbonate with a mixture of a silicate and a silicofluoride.

Abstract: The precipitation of scale-forming salt in an aqueous system is inhibited by adding either stoichiometric or substoichiometric amounts to said system of a substituted tertiary amine of the general formula ##EQU1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, X and Y are hereinafter defined and n is 1-20.

Abstract: Application of a graphite film to at least the first roll contacted by a metal strip to which a coating metal has been applied. The roll may be scraped clean and the graphite film applied immediately after scraping. The graphite film may be applied by wiping the roll with a solid graphite block or by wiping the roll with a graphite colloidal suspension in a suitable carrier. In the latter event, the roll temperature must be high enough to vaporize the carrier so that strip contamination is avoided. The graphite film prevents adherence of coating metal particles to the roll surface whereby damage to the coated surface on the metal strip is prevented.

Abstract: Composition and method for the treatment of inorganic mineral scale particularly calcium and/or barium sulfate scale, using a treating composition consisting of a water-soluble sulfonated ethoxylated alcohol of prescribed formula in an amount of from about 0.0005% to about 0.005%, on a weight basis.

Abstract: For inhibiting corrosion and scale on ferrous metal parts in a circulating water system there is added to the water in such system from 10 to 500 ppm of a partial ester of a polyfunctional acid having a free carboxylate, phosphonate or sulfonate group and another carboxyl group which is esterified with a polyoxyalkylated derivative of an alkyl, alkaryl, or alkenyl alcohol having a terminal hydrocarbon group of 8-20 carbon atoms. In some preferred embodiments there is added with the partial ester from 10 to 500 ppm of a dispersible oil which may also include a surface active agent for dispersing the oil in water. Preferred partial esters include partial esters of citric, malic, tartaric, maleic, adipic and phthalic acids partially esterified with an alkyl polyoxyethylene alcohol having 2 to 4 ethoxy groups.

Abstract: In a continuous hot-dip galvanizing process, the temperature of a travelling steel strip just before said strip is introduced into a molten Zn bath is controlled below the bath temperature, preferably at 380.degree.C. to 420.degree.C., to avoid generation of dross in said bath and impairment of said galvanized film.

Abstract: To obviate eutrophication of lakes, streams, etc., non-phosphorus highly biodegradable builders and sequestrants are provided for household and industrial use. These builders and sequestrants are either (1) a cis-2,5-disubstituted tetrahydrofuran in which the substituents are carboxy or carboxymethyl groups, (2) water soluble salts of such tetrahydrofurans, or (3) mixtures of (1) and (2). Conventional detergent actives may also be utilized in combination with the builders or sequestrants of this invention.

Abstract: A synergistic mixture comprising an alkynyl cycloalkanol and N,N'-dicycloalkyl-thiourea and polyaminomethylenephosphonate is used as an inhibitor in protecting metals from acid attack when cleaning said metals with an acid solution.

Abstract: A method of inhibiting corrosion and scale formation in an aqueous system is disclosed which comprises the step of treating the said system with 0.1 to 500 parts per million by weight of the total aqueous content of the said system, of a composition which may additionally include zinc and which comprises a polymer selected from the group consisting of:Polymers having recurring units of the formula: ##EQU1## WHEREIN M.sup.+ may be H.sup.+, alkali metal cation, or quaternary ammonium cation of the formula: ##EQU2## wherein for all of the above formulas, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are each independently selected from the group consisting of hydrogen, alkyl of from one to 10 carbon atoms, and substituted alkyl of from one to 10 carbon atoms, where the substituent is hydroxyl; carbonyl; and carboxylic acid groups, and alkali metal ion and ammonium salts thereof; andWherein n is an integer of from 2 to 100; and polymers having recurring units of the formula: ##EQU3## WHEREIN R.sub.

Abstract: A cleaner-inhibitor and method of incorporating same into an automotive or diesel coolant system consisting of 2-4 fluid ounces per gallon of a cleaner whose basic components are:A. an aminopolycarboxylic acidB. an .alpha. hydroxy acid such as gluconic, tartaric, or citricC. an azole copper protector such as mercaptobenzothiazole (MBT) and a monoaryl triazole such as benzotriazole or tolyltriazoleWherein the ratio of A:B:C is about 3:1:1 to 2:1:1.A, b, and C above constitute a Deposit Release Agent in the cleaner.The cleaner above is combined with an inhibitor which is a multi-component inhibiting composition of the boron-nitrite type containing an alkali metal silicate and which may include a copper inhibitor and a polymeric dispersant, which is a water-soluble carboxylic acid polymer such as styrene maleic anhydride copolymer, a polyacrylate or methacrylate copolymer or carboxymethyl cellulose.The cleaner-inhibitor is adjusted with caustic to give a pH in the range 7.5-12.6 and preferably 7.5-10.

Abstract: A sewer waste-water treating agent of superior quality produced by alkali treatment of waste catalyst grains arising from the fluid-bed type catalytic cracking process, said sewer waste-water treating agent being capable of facilitating solid-liquid separation.

Abstract: A synergistic sequestering agent composition comprising (a) 1-hydroxyethane-1,1-diphosphonic acid and its alkali metal and ammonium salts, or, preferably and (b) aminotrimethylenephosphonic acid and its alkali metal and ammonium salts, as well as (c) a phosphonopolycarboxylic acid selected from the group consisting of phosphonosuccinic acid, methylphosphonosuccinic acid and 2-phosphonobutane-1,2,4-tricarboxylic acid and their alkali metal and ammonium salts. The said mixture of sequestering agents is useful as a sequestering agent for aqueous solutions containing bivalent and trivalent cations especially in sub-stoichiometric amounts.

Abstract: A cleaner to be used preferably in conjunction with conventional glycol-type collants in automotive cooling systems and methods of using same. The present cleaners may be referred to as extended-life cleaners which may be added to the glycol coolant and are co-extensive with the life of said glycol. These cleaners operate to dissolve deposits, minimize corrosion damage, and dissolve organic degradation products, all of which cause heat transfer difficulties. The basic cleaner comprises:A. an aminopolycarboxylic acidB. an .alpha. hydroxy acid such as gluconic, tartaric, or citricC. an azole copper protector such as mercaptobenzothiazole (MBT) and a monoaryl triazole such as benzotriazole or tolyltriazoleWherein the above components are combined in a weight ratio ranging from 3:1:1 to 2:1:1.

Abstract: The invention disclosed relates to a method for using a new improved composition for inhibiting or preventing accumulation of scale or the like on heating surfaces in an aqueous system. The present composition includes an acrylic polymer, a water-soluble chelant, and an organophosphonic acid and/or their water-soluble salts. In a preferred embodiment, the composition is composed of sodium polymethylacrylate, nitrilotriacetic acid and hydroxyethylidene diphosphonic acid as its water-soluble salts.