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Broad-spectrum efficacy against bacteria, fungi, and algae in industrial water systems.
Stable performance across a wide pH range (pH 4–9) and tolerant to common water treatment additives.
Low-foaming formulation suitable for high-shear and recirculating cooling water applications.
Compatible with oxidizing biocides for synergistic control in challenging microbial environments.
Designed for continuous or slug dosing with favorable environmental profile and low aquatic toxicity.
Cooling water systems in power generation and HVAC installations.
Process water circuits in pulp and paper manufacturing.
Recirculating water in metalworking fluid sumps and central coolant systems.
Industrial closed-loop systems requiring non-oxidizing, non-corrosive biocide protection.
Pre-treatment water for membrane filtration and reverse osmosis feed streams.
| Chemical Type | Heterocyclic nitrogen compound (isothiazolone-based) |
| Product Form | Aqueous solution |
| Appearance | Clear, light yellow liquid |
| Primary Applications | Non-oxidizing biocide for industrial water treatment |
| Key Features | Broad-spectrum antimicrobial activity, pH stability, low foaming |
| Benefits | Extended system run time, reduced biofilm formation, compatibility with common scale/corrosion inhibitors |
| Storage Stability | Minimum 24 months at 5–30 °C in original unopened container |
| Regulatory Status | Registered under U.S. EPA FIFRA; compliant with EU BPR requirements |
Q1: What is the primary mode of action of Dow ROCIMA 631 Biocide?
A: Dow ROCIMA 631 Biocide is a broad-spectrum preservative that functions primarily through membrane disruption and interference with essential microbial metabolic processes, effectively controlling bacteria, yeasts, and molds in water-based formulations.
Q2: In which types of industrial formulations is Dow ROCIMA 631 typically used?
A: It is commonly incorporated into water-based industrial products such as metalworking fluids, latex paints, adhesives, construction chemicals, and cleaning concentrates—where long-term microbiological stability is required during storage and use.
Q3: Is Dow ROCIMA 631 compatible with common formulation ingredients like surfactants and thickeners?
A: Yes, it demonstrates good compatibility with a wide range of anionic, nonionic, and amphoteric surfactants, as well as common rheology modifiers and emulsifiers found in industrial aqueous systems—though compatibility testing under actual formulation conditions is always recommended.
Q4: How should Dow ROCIMA 631 be added to a formulation for optimal performance?
A: It is generally recommended to add Dow ROCIMA 631 during the cool-down phase or after neutralization, at temperatures below 50 °C, to preserve its efficacy and minimize potential degradation. Dosage depends on formulation requirements but is typically used at low concentrations to achieve effective preservation.
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