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Water-soluble formulation enabling rapid and uniform dispersion in aqueous systems.
Broad-spectrum efficacy against bacteria, fungi, and algae, including resistant strains.
Low toxicity profile with favorable environmental and handling safety characteristics.
Stable across a wide pH range (pH 4–10), maintaining biocidal performance under varying process conditions.
Non-oxidizing chemistry, minimizing corrosion risk to metals and compatibility issues with common system additives.
Cooling water systems in industrial HVAC and power generation facilities.
Process water circuits in paper & pulp manufacturing and textile dyeing operations.
Emulsion polymerization reactors and latex storage tanks.
Oilfield injection water and produced water treatment systems.
Preservation of water-based coatings, adhesives, and construction chemicals during storage.
| Chemical Type | Heterocyclic nitrogen compound (isothiazolinone derivative) |
| Product Form | Clear, pale yellow aqueous solution |
| Appearance | Homogeneous liquid, free from visible particles or phase separation |
| Active Ingredient Content | 1.5% w/w (as active isothiazolinone blend) |
| Density (20°C) | 1.02–1.04 g/cm³ |
| pH (1% aqueous solution) | 6.0–8.0 |
| Solubility in Water | Completely miscible at all ratios |
| Storage Stability | ≥24 months in original sealed container at 5–30°C |
Q1: What is the primary application of Schülme Grotan WS Biocide?
A: Schülme Grotan WS Biocide is a water-soluble preservative specifically developed for protecting water-based industrial formulations—such as metalworking fluids, latex paints, adhesives, and construction slurries—against microbial spoilage caused by bacteria, yeasts, and fungi.
Q2: Is Schülme Grotan WS Biocide compatible with common emulsifiers and thickeners used in aqueous systems?
A: Yes, it demonstrates broad compatibility with nonionic and anionic surfactants, cellulose ethers, associative thickeners, and most common stabilizers found in industrial water-based products. Compatibility testing under actual formulation conditions is still recommended prior to full-scale implementation.
Q3: How should Schülme Grotan WS Biocide be dosed in a formulation?
A: It is typically used at low concentrations, generally ranging from 0.1% to 2% by weight of the final product, depending on the microbial challenge, pH, temperature, and presence of other biocidal agents or stabilizing components. Optimal dosage should be determined through challenge testing per ISO 11930 or equivalent protocols.
Q4: Does Schülme Grotan WS Biocide remain effective across a wide pH range?
A: Yes, it maintains stable performance in aqueous systems with pH values between approximately 5.0 and 10.5. Its efficacy may diminish outside this range, particularly under strongly acidic or highly alkaline conditions, so pH monitoring and adjustment are advised during formulation and storage.
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