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Broad-spectrum efficacy against bacteria, fungi, and algae in industrial water systems.
Stable performance across a wide pH range (pH 4–10) and tolerant to common water treatment additives.
Low foaming formulation suitable for high-shear and recirculating cooling water applications.
Compatible with common corrosion and scale inhibitors, enabling seamless integration into existing treatment programs.
Non-oxidizing chemistry that avoids oxidative degradation of system components and polymers.
Industrial cooling water systems including open recirculating towers and closed loops.
Process water circuits in pulp & paper manufacturing facilities.
Oilfield produced water and secondary recovery injection systems.
Paint, coating, and adhesive manufacturing process water and preservative blends.
Textile dyeing and finishing auxiliaries where microbial stability is critical.
| Chemical Type | Isothiazolone-based non-oxidizing biocide |
| Product Form | Aqueous solution |
| Appearance | Clear, light yellow liquid |
| Active Ingredient | 2-Methyl-4-isothiazolin-3-one (MIT) and 5-Chloro-2-methyl-4-isothiazolin-3-one (CMIT) |
| pH (as supplied) | 2.5–4.5 |
| Density (20°C) | 1.08–1.12 g/cm³ |
| Solubility in Water | Completely miscible |
| Primary Applications | Cooling water, process water, and industrial preservative systems |
Q1: What is the primary mode of action of ROCIMA 520S Biocide?
A: ROCIMA 520S is a broad-spectrum, non-oxidizing biocide that functions primarily through membrane disruption and interference with essential cellular processes in bacteria, fungi, and algae. Its formulation is designed to provide persistent antimicrobial protection in water-based industrial systems.
Q2: In which types of industrial formulations is ROCIMA 520S commonly used?
A: ROCIMA 520S is widely employed in water-based industrial products such as metalworking fluids, latex paints and coatings, adhesives, construction chemicals, and industrial cleaners—where long-term microbial stability and resistance to spoilage are critical.
Q3: How does ROCIMA 520S perform under varying pH and temperature conditions?
A: ROCIMA 520S demonstrates good stability and efficacy across a broad pH range (typically pH 4–10) and maintains performance at elevated temperatures common in industrial processing environments. It is formulated to resist hydrolysis and degradation under typical storage and use conditions.
Q4: Is ROCIMA 520S compatible with common surfactants and thickeners found in water-based formulations?
A: Yes, ROCIMA 520S exhibits broad compatibility with anionic, nonionic, and amphoteric surfactants, as well as common rheology modifiers including cellulose ethers, associative thickeners, and polyacrylates—making it suitable for complex, multi-component formulations.
Q5: What is the recommended dosage approach for ROCIMA 520S in finished products?
A: Dosage depends on formulation requirements, challenge level, and regulatory context, but ROCIMA 520S is typically used at low concentrations—generally ranging from 0.1% to 2% by weight—to achieve effective preservation without compromising product performance or aesthetics.
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