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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-dose efficiency—effective at concentrations as low as 5–50 ppm active ingredient.
Non-oxidizing chemistry minimizes corrosion risk to metallurgy and elastomers in recirculating systems.
Compatible with common scale inhibitors, dispersants, and anionic/nonionic surfactants.
Cooling water systems in HVAC and industrial heat exchange applications.
Process water circuits in paper manufacturing and pulp mills.
Recirculating water in metalworking fluid sumps and machining operations.
Make-up water treatment for closed-loop chilled water systems.
Preservation of aqueous-based industrial formulations during storage and transport.
| Chemical Type | Isothiazolinone-based biocide (active ingredients: 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one) |
| Product Form | Aqueous liquid solution |
| Appearance | Clear, light yellow to amber liquid |
| pH (as supplied) | 2.0–4.0 |
| Density (20 °C) | 1.08–1.12 g/cm³ |
| Active Ingredient Content | 1.5% w/w total isothiazolinones |
| Solubility | Miscible with water in all proportions |
| Storage Stability | ≥12 months at 5–30 °C in original unopened container |
Q1: What is Dow KATHON LX150 Biocide primarily used for?
A: Dow KATHON LX150 Biocide is a broad-spectrum, water-based preservative designed for use in water-miscible industrial formulations—especially metalworking fluids, latex paints, adhesives, and other aqueous systems where microbial control is critical to product stability and performance.
Q2: Is Dow KATHON LX150 Biocide compatible with common formulation ingredients?
A: Yes, it demonstrates good compatibility with many anionic, nonionic, and amphoteric surfactants, thickeners, and corrosion inhibitors commonly found in industrial emulsions and coatings. However, compatibility should always be verified under actual formulation conditions due to potential interactions with strong oxidizers or highly alkaline components.
Q3: How should Dow KATHON LX150 Biocide be added to a formulation?
A: It is recommended to add Dow KATHON LX150 Biocide during the cool-down phase of manufacturing—typically after heat-sensitive components have been incorporated—to preserve its biocidal activity. Pre-dilution with water may be necessary for uniform dispersion, especially in viscous systems.
Q4: Does Dow KATHON LX150 Biocide require pH adjustment for optimal performance?
A: Its efficacy is generally maintained across a broad pH range (approximately pH 4–9), though maximum stability and activity are typically observed in mildly acidic to neutral conditions. Significant deviations outside this range may reduce shelf life or antimicrobial performance.
Q5: Can Dow KATHON LX150 Biocide be used in products intended for direct human contact?
A: Dow KATHON LX150 Biocide is formulated for industrial applications and is not approved for use in cosmetics, personal care products, or pharmaceuticals without thorough regulatory review and specific authorization. Formulators must assess suitability based on applicable regional regulations and end-use requirements.
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E-mail: wangxingqiang@ericwchem.com
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