Abstract: A method of providing a continuous, sequential, and cyclic, if desired, liquid feed to a processor from a plurality of containers, which comprises feeding the liquid from a first of the containers through a first conduit to a reservoir having a float valve, to keep the level of the liquid in the reservoir high enough to maintain the float valve in an upper floating position that closes the float valve. The first conduit is uncontrolled by the float valve. The float valve controls a second conduit which connects with a second container. As liquid is withdrawn from the reservoir for processing, liquid from the first conduit and container replenishes the reservoir until it is exhausted. Then, the liquid level drops, and the float valve opens the second conduit for replenishing the reservoir with liquid from the second container. A crossover valve may be used so that the float valve controls flow from either container connected to the second conduit.

Abstract: A method of monitoring and controlling hardness in an industrial water system is described and claimed. The method requires the use of a Compound that develops a separate detectable fluorescent signal in the presence of soluble hardness. A fluorometer is used to detect this separate detectable fluorescent signal of the Compound. The separate detectable fluorescent signal is used to ascertain the amount of soluble hardness present in the industrial water system.

Abstract: A method of monitoring and controlling hardness in an industrial water system is described and claimed. The method requires the use of a Compound that develops a separate detectable fluorescent signal in the presence of soluble hardness. A fluorometer is used to detect this separate detectable fluorescent signal of the Compound. The separate detectable fluorescent signal is used to ascertain the amount of soluble hardness present in the industrial water system. Another aspect of the instant claimed invention is the ability to determine whether the soluble hardness is calcium or magnesium based.

Abstract: A method of monitoring and controlling hardness in an industrial water system is described and claimed. The method requires the use of a Compound that develops a separate detectable fluorescent signal in the presence of soluble hardness. A fluorometer is used to detect this separate detectable fluorescent signal of the Compound. The separate detectable fluorescent signal is used to ascertain the amount of soluble hardness present in the industrial water system. Another aspect of the instant claimed invention is the ability to determine whether the soluble hardness is calcium or magnesium based.

Abstract: A method of monitoring and controlling hardness in an industrial water system is described and claimed. The method requires the use of a Compound that develops a separate detectable fluorescent signal in the presence of soluble hardness. A fluorometer is used to detect this separate detectable fluorescent signal of the Compound. The separate detectable fluorescent signal is used to ascertain the amount of soluble hardness present in the industrial water system.

Abstract: Antistatically modified fixturing cements useful in the polishing of silicon wafers are disclosed. The fixturing adhesives disclosed generally comprise:(a) a solvent carrier having a boiling point no greater than 200.degree. F. under a vacuum of 25 inches of mercury;(b) a fixturing adhesive soluble in the solvent carrier; and,(c) an antistatic agent.

Abstract: The invention is a method of making water-insoluble aliphatic primary or secondary amines, water-soluble or dispersible, which comprises reacting at a temperature of at least 120.degree. C. these amines with water-soluble acrylamide polymer which contains at least 5 mole percent acrylamide to transamidate not more than 50% mole percent of the acrylamide polymer with the water-insoluble aliphatic primary or secondary amine. The invention also covers a water-soluble or dispersible polymeric composition comprising an acrylic acid polymer having a molecular weight within the range of 500-100,000 which contains between 0.5-50 mole percent of the acrylic acid groups in the form of the amides of a water-insoluble aliphatic primary or secondary amine which contains from 10-36 carbon atoms.

Abstract: An aqueous concentrate useful for treating boiler waters to scavenge oxygen therefrom which contains at least 0.3% by weight of either gallic acid or propyl gallate. This aqueous concentrate has a pH adjusted to at least 8.5 by a water-soluble neutralizing amine of the type used to treat boiler waters. Additionally, a method for treating boiler waters with an oxygen scavenger.

Abstract: The use of benzo and/or tolyltriazole alone or in combination with neutralizing and filming amines to reduce copper corrosion in boiler condensate systems by feeding the mixture into the main steamheaders.

Abstract: The invention comprises a method of preparing copolymers of acrylamido sulfonic acids which comprises converting to acrylamido sulfonic groups at least 5 mole % of the acrylic acid or methacrylic acid groups in a polymer which contains at least 5 mole % of these monomers in its structures by reacting an aqueous solution of the acrylic acid or methacrylic acid polymer with an amino sulfonic acid under pressure at a temperature of at least 70.degree. C. for a period of time sufficient to convert at least 5 mole % of the acrylic acid or methacrylic acid groups in the polymer to amido sulfonic acid groups corresponding to the starting amino sulfonic acid.

Abstract: A non-corrosive aqueous solution of a copper nitrate which contains at least 30% by weight of copper nitrate, from 1-5% by weight of boric acid based on the weight of the copper nitrate, and from 0.2-3.0% by weight of EDTA based on the weight of the copper nitrate.