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11390 A New Solid Isothiazolone Biocide for Industrial Water Treatment

Picture for 11390 A New Solid Isothiazolone Biocide for Industrial Water Treatment
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Product Number: 51300-11390-SG
ISBN: 2011 11390 CP
Author: Terry M. Williams, Ph.D. and Christine Schultz
Publication Date: 2011
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$20.00
$20.00
Non-oxidizing biocides are widely used in industrial water treatment system and are typically formulated as liquid products. Several solid biocide formulations of non-oxidizers are also formulated as solids, including DBNPA (dibromonitrilopropionamide) and bronopol (bromonitropropanediol). Recently, a novel solid formulation of chloromethyl-methylisothiazolone (CMIT/MIT) biocide has been developed for microbial control in small to medium sized cooling water systems. CMIT/MIT is well recognized for its excellent broad spectrum activity versus various types of bacteria, (including Legionella, biofilmformers and sulfate-reducers), algae and fungi. This new isothiazolone solid tablet dissolves rapidly and has improved safety and handling features versus liquid formulations. The tablet is completely water soluble, leaves no residue, has good compatibility with standard materials of construction, and is wrapped in a protective water soluble outer film. This paper will describe the physical-chemical characteristics of the new solid isothiazolone biocide, provide results of lab studies, and review other non-oxidizing biocide solid formulations currently in use today.

Keywords: water treatment, biocide, non-oxidizer, solid, isothiazolone, dibromonitrilopropionamide, DBNPA, bronopol, bromonitropropanediol
Non-oxidizing biocides are widely used in industrial water treatment system and are typically formulated as liquid products. Several solid biocide formulations of non-oxidizers are also formulated as solids, including DBNPA (dibromonitrilopropionamide) and bronopol (bromonitropropanediol). Recently, a novel solid formulation of chloromethyl-methylisothiazolone (CMIT/MIT) biocide has been developed for microbial control in small to medium sized cooling water systems. CMIT/MIT is well recognized for its excellent broad spectrum activity versus various types of bacteria, (including Legionella, biofilmformers and sulfate-reducers), algae and fungi. This new isothiazolone solid tablet dissolves rapidly and has improved safety and handling features versus liquid formulations. The tablet is completely water soluble, leaves no residue, has good compatibility with standard materials of construction, and is wrapped in a protective water soluble outer film. This paper will describe the physical-chemical characteristics of the new solid isothiazolone biocide, provide results of lab studies, and review other non-oxidizing biocide solid formulations currently in use today.

Keywords: water treatment, biocide, non-oxidizer, solid, isothiazolone, dibromonitrilopropionamide, DBNPA, bronopol, bromonitropropanediol
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