Dow Biocides

Water Treatment

Controls microbiological contamination and biofilm in cooling towers, air washers and reverse osmosis systems.

Please note that not all products are registered in all regions for all applications. Please contact us to check relevance of a particular biocide for your application.

Product Name Active Composition Description Ph Use Range
AQUCAR 504 Water Treatment Microbiocide 4% glutaraldehyde Liquid 3-9
AQUCAR 514 Water Treatment Microbiocide 14% glutaraldehyde, 2.5% alkyl dimethyl benzyl ammonium chloride Liquid 3-9
AQUCAR 515 Water Treatment Microbiocide 15% glutaraldehyde Liquid 3-9
AQUCAR 542 Water Treatment Microbiocide 42.5% glutaraldehyde, 7.5% alkyl dimethyl benzyl ammonium chloride Liquid 3-9
AQUCAR 545 Water Treatment Microbiocide 45% glutaraldehyde Liquid 3-9
AQUCAR 550 Water Treatment Microbiocide 50% glutaraldehyde Liquid 3-9
AQUCAR GA 50 Water Treatment Microbiocide 50% glutaraldehyde Liquid 3.1-4.5
BIOBAN BP‑10 10% 2-bromo-2-nitropropane-1,3-diol (bronopol) Liquid 4-8
BIOBAN BP‑30 30% 2-bromo-2nitro-1,3-propanediol (bronopol) Liquid 4-8
BIOBAN BP‑40 40% 2-bromo-2-nitropropane-1,3-diol (bronopol) Liquid 4-8
BIOBAN BP‑PLUS 99% 2-bromo-2-nitropropane-1,3-diol (bronopol) Solid 4-8
BIOBAN CWT 25% tris (hydroxymethyl) nitromethane Liquid 7-11
Dow Antimicrobial 7287 20% 2,2-Dibromo-3-nitrilopropionamide Liquid 7-8.5
Dow Antimicrobial 8536 5% 2,2-Dibromo-3-nitrilopropionamide Liquid 7-8.5
SUMP BUDDY WT Antimicrobial Time‑Release Tablet 40% 2,2-Dibromo-3-nitrilopropionamide (DBNPA) Solid 7-9.5
TRIS NITRO 50% 50% tris (hydroxymethyl) nitromethane Liquid 7-11


For additional information on specialty chemicals for water treatment applications, please visit the ANGUS Chemical Company site.


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