Water Treatment Biocide

Water Treatment Biocide (CMIT/MIT 14%):

Water Treatment Biocide is a fast-acting, broad-spectrum non-oxidizing microbicide engineered to control bacteria, fungi, and algae in industrial water systems. Formulated with a precise 3:1 ratio of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one (CMIT/MIT 14%), the active molecules penetrate cellular membranes and disrupt critical enzymatic pathways within minutes of contact. It performs effectively across a wide operating pH range and maintains compatibility with standard industrial water treatment additives, including scale inhibitors, dispersants, and corrosion inhibitors.

 

Product Specifications:

Active Ingredient: CMIT/MIT (5-Chloro-2-methyl-4-isothiazolin-3-one and 2-Methyl-4-isothiazolin-3-one)
Active Content: 14.0% - 15.0%
Appearance: Clear, green to yellowish-green liquid
PH Value (1% aqueous solution): 2.0 - 4.0
Density (20 deg. C): 1.02 - 1.05 g/cm3
Free Chlorine: <= 0.1%
Iron Content: <= 20 mg/kg
Copper Content: <= 5 mg/kg

 

Chemical & Physical Properties:

Solubility: Miscible with water in all proportions.
Thermal Stability: Stable up to 50 deg. C during storage; operational stability up to 60 deg. C in active systems. Degrades via chemical and biological pathways in the environment, preventing persistent bioaccumulation.
Compatibility: Compatible with anionic, non-ionic, and cationic surfactants at standard dosing levels.
Corrosivity: Non-corrosive to carbon steel, stainless steel, and high-density polyethylene (HDPE) at recommended use concentrations (5 - 50 ppm).

 

Applications:

Industrial Cooling Towers: Controls slime-forming bacteria, sulfate-reducing bacteria (SRB), and fungi in open and closed recirculating loop systems.
Papermaking: Prevents slime formation in pulp and white water circuits, reducing sheet breaks and microbial-induced corrosion.
Oilfield Water Systems: Suppresses SRB growth in produced water, injection water, and polymer flood operations.
Metalworking Fluids: Functions as a tankside preservative for synthetic and semi-synthetic cutting fluids.

 

Pharmaceutical Manufacturing Relevance:

While primary deployment occurs in industrial utilities, ultra-pure water (PW) and water for injection (WFI) pretreatment systems utilize biocide formulations during sanitization cycles. The low heavy-metal specification (<= 20 mg/kg iron) ensures compatibility with downstream reverse osmosis (RO) membranes and electrodeionization (EDI) modules, preventing metallic fouling and catalyst degradation in high-purity water loops.

 

Grade & Quality Requirements:

Industrial Grade (Type A): 14% active ingredient for cooling water and oilfield applications.
Concentrated Grade (Type B): 25% active content available upon request for high-volume formulators.
Regulatory Compliance: Fully registered for import and distribution under EU REACH and North American TSCA compliance frameworks (Registration and CAS numbers available upon inquiry).

 

Quality Control:

Production batches undergo analytical testing prior to release. Gas Chromatography (GC) confirms the 3:1 isomer ratio of CMIT to MIT. Titration verifies active content percentages, and density/pH meters ensure physical conformity. Retained samples from every lot are archived for 24 months for traceability and quality auditing.

 

Packaging & Storage:

Packaging Options:
25 kg HDPE drums
200 kg HDPE drums
1,000 kg IBC totes (Intermediate Bulk Containers)
Storage Conditions: Store in original, tightly closed containers in a cool, dry, well-ventilated area (5 deg. C - 35 deg. C). Protect from direct sunlight and freezing temperatures.
Shelf Life: 12 months from the date of manufacture when stored under recommended conditions.

 

Supply & Procurement:

MOQ (Minimum Order Quantity): 1 pallet (1 x 200 kg drums or 1 x 1,000 kg IBC tote).
Sample Policy: 500 mL laboratory testing samples available for qualified industrial buyers; shipping freight billed to recipient account.
Lead Time:
Ex-stock standard formulations: 7 - 10 business days.
Custom formulations or bulk tank car orders: 15 - 25 business days.
Bulk Supply: Monthly supply capacities up to 500 metric tons; long-term annual supply contracts (LTA) available with fixed pricing mechanisms.

 

OEM / Custom Specification:

Active Content Adjustment: Formulations available from 1.5% to 30% active ingredients based on formulation requirements.
Inhibitor Packaging: Custom corrosion inhibitor blends formulated with azoles or phosphonates to client specifications.
Private Labeling: Custom drum labeling, laser-etched lot numbers, and client-specified documentation headers for wholesale distributors.

 

FAQ:

 

Request a Quote:

Submit inquiries directly to the chemical sales engineering desk to receive a formal commercial quotation including FOB/CIF shipping terms, volume-tiered pricing, and current batch COA samples. Provide required volume, destination port, and intended application sector to expedite processing.

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