Isothiazolinones (CMIT/MIT) is a high-performance, broad-spectrum biocide and fungicide engineered for maximum efficiency in industrial water treatment. Composed of 5-chloro-2-methyl-4-thiazoline-3-ketone (CMI) and 2-methyl-4-thiazoline-3-ketone (MI), this powerful formulation works by disrupting the protein bonds of bacteria and algae, rapidly inhibiting growth and ensuring the complete sterilization of contaminated systems.
Designed for versatility and safety, CMIT/MIT is an ideal solution for industrial circulating cooling water, oilfield wastewater treatment, papermaking, and the production of cosmetics and detergents. It offers a non-oxidative, low-toxicity alternative that is highly compatible with most surfactants, providing an excellent biosludge stripping effect when used at higher dosages to maintain peak system operational efficiency.
Detailed Parameters
| CAS No. | 26172-55-4, 2682-20-4 | Molecular Weight | 115.16 |
|---|---|---|---|
| Appearance (Grade I) | Amber transparent liquid | Active Content (Grade I) | 14.0% - 15.0% |
| pH Value (As it) | 2.0 - 5.0 | Density (20℃) | 1.03 - 1.32 g/cm³ |
| CMI/MI Ratio | 2.5 - 3.4 (wt %) | Available Concentrations | 2%, 4%, 8% or customized |
| Storage Life | 10 Months | Packaging | 200L Drum, 1000L IBC |
Key Advantages
Broad Spectrum
Powerful inhibition and biocidal effects against a wide range of common bacteria, fungi, and algae.
Rapid Action
Quickly inhibits microbial growth upon contact, leading to fast degradation of biological contaminants.
High Efficiency
Achieves superior sterilization results with low operational costs and minimal dosages.
Eco-Friendly
Excellent biodegradability with no harmful residues, ensuring environmental safety in treatment processes.
Superior Compatibility
Easily mixable with chlorine and most cationic, anionic, and non-ionic surfactants.
Sludge Stripping
Provides an exceptional biosludge stripping effect when applied at high-dosage concentrations.
Product Gallery
Management Platforms
Dosage Control
Optimize biocide levels (80-100mg/L for biocidal use) to ensure maximum efficacy.
Sludge Management
Utilize Grade II concentrations at 150-300mg/L for effective industrial sludge stripping.
Scheduling
Implement a systematic charging cycle every 3-7 days to prevent microbial regrowth.
Synergistic Pairing
Combine with quaternary ammonium compounds to enhance overall biocidal performance.
Safe Storage
Maintain product in shady, dry rooms to preserve stability for up to ten months.
Safety Protocol
Strict use of rubber gloves and protective eyewear to prevent skin burns and dermatitis.
Investment Return Comparison
| Performance Metric | Traditional Biocides | CMIT/MIT Solution |
|---|---|---|
| Active Efficiency | Moderate | Ultra-High |
| Operating Cost | High Consumption | Low-Cost Operation |
| Environmental Impact | Residual Persistence | Biodegradable / No Residue |
| Compatibility | Limited | Broad Surfactant Support |
| Spectrum Range | Narrow | Broad Spectrum (Bacteria/Algae) |
Frequently Asked Questions
CMIT/MIT is widely used in industrial circulating cooling water systems, oilfield wastewater treatment, papermaking, pesticide formulation, cutting oils, leather processing, detergents, and cosmetics.
No, it should not be used together with oxidative fungicides such as chlorine, nor in cooling water systems that contain sulfur.
When utilizing Grade II as a sludge stripper, a preferred dosage of 150-300mg/L is recommended.
It works by breaking the chemical bonds between the proteins of bacteria and algae, rapidly inhibiting their growth and leading to cell death.
Due to its corrosive nature, skin and eye contact must be strictly prohibited. Operators must wear protective glasses and rubber gloves at all times.
No, one of the key advantages of CMIT/MIT is its good degradation property, meaning it leaves no residual chemicals after treatment.




