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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 volatility and minimal odor—enhances operator safety and handling convenience.
Compatible with polymeric dispersants and scale inhibitors used in cooling water formulations.
Non-oxidizing mode of action helps prevent rapid microbial resistance development.
Cooling water systems in power generation and HVAC installations.
Process water circuits in pulp and paper manufacturing.
Recirculating water loops in chemical processing plants.
Make-up water treatment for closed-loop industrial cooling towers.
Preservation of water-based metalworking fluids during storage and use.
| Chemical Type | Heterocyclic nitrogen compound (isothiazolinone derivative) |
| Product Form | Liquid concentrate |
| Appearance | Clear, pale yellow to amber liquid |
| Primary Applications | Industrial water treatment, metalworking fluid preservation |
| Key Features | Non-oxidizing, broad-spectrum, pH-stable, low-foaming |
| Benefits | Reduced dosing frequency, compatibility with common water treatment chemistries, improved system reliability |
| Storage Stability | ≥24 months at 5–30°C in original sealed container |
| Recommended Dosage Range | 50–200 ppm active ingredient (system-dependent) |
Q1: What is the primary mode of action of Solvay Tolcide PS70A Biocide?
A: Tolcide PS70A functions as a broad-spectrum preservative through controlled release of active biocidal species, primarily targeting bacteria, yeasts, and molds by disrupting essential cellular processes such as membrane integrity and metabolic enzyme function.
Q2: In which types of industrial formulations is Tolcide PS70A typically used?
A: It is commonly incorporated into water-based industrial systems including metalworking fluids, latex paints and coatings, adhesives, construction mortars, and nonwoven fabric treatments—where long-term microbial stability and low volatility are required.
Q3: How does Tolcide PS70A perform under varying pH conditions?
A: Tolcide PS70A demonstrates good stability and efficacy across a broad pH range, typically maintaining performance in formulations with pH values from approximately 4 to 10, though optimal activity may vary depending on specific formulation chemistry and challenge microorganisms.
Q4: Is Tolcide PS70A compatible with common surfactants and thickeners used in industrial emulsions?
A: Yes, Tolcide PS70A exhibits favorable compatibility with many anionic, nonionic, and amphoteric surfactants, as well as common rheology modifiers such as hydroxyethyl cellulose and associative thickeners—though compatibility testing in the final formulation is recommended to confirm stability and efficacy.
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E-mail: wangxingqiang@ericwchem.com
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