water treatment chemicals

BIT

1,2-Benzisothiazolin-3-one (BIT) is a highly effective, broad-spectrum industrial biocide and preservative that achieves irreversible microbial inactivation by inhibiting microbial enzyme systems. It offers advantages such as low toxicity, high-temperature resistance, acid and alkali resistance, and easy biodegradability. It is widely used across various industrial sectors to address issues such as mold growth, spoilage, emulsion breakdown, and foul odors caused by microbial proliferation.


Applications

FAQs about Water Treatment Chemicals

Product Tags

Item Specifications
CAS Number 2634-33-5
Odor Almost odorless
Appearance White or slightly yellow powder at room temperature
Purity ≥99.0%
Solubility Slightly soluble in water; soluble in organic solvents such as methanol, ethanol, acetone, dichloromethane, dimethyl sulfoxide, and DMF
Melting Point 155–158°C
Boiling Point 360°C
Decomposition Temperature >300°C
Density 1.217 g/cm³
Moisture ≤15.0%
Chlorides ≤0.6%

Applications

1. Water-based Coatings and Adhesives

● Latex paints, water-based inks: Add 0.05%–0.2% to prevent mold growth in wet films and yellowing in dry films; provides stability in alkaline systems (pH 10–12); enhances coating durability; extends outdoor service life by 40%

● Water-based adhesives, pigment pastes: Inhibits Gram-negative bacteria such as Pseudomonas, prevents product odor, separation, and viscosity loss; particularly suitable for high-temperature environments

2. Pulp and Paper Industry

● Pulp preservation: Add 0.1%–0.15% to inhibit microbial growth and prevent paper breaks caused by pulp spoilage; pulp spoilage rate is reduced by 92%, and paper strength is increased by 15%

● Paper coating: Imparts antimicrobial and anti-mold properties to paper, suitable for food packaging, wallpaper, and other applications

3. Metalworking and Industrial Fluids

● Cutting fluids and grinding fluids: Add 0.2%–0.3% to prevent pH drops and equipment corrosion caused by bacterial growth; extends cutting fluid replacement intervals from 3 months to 8 months, reducing annual maintenance costs per unit by 23,000 yuan

● Hydraulic oil and lubricating oil: Inhibits oil degradation and viscosity changes caused by microorganisms, extending service life

● Industrial Circulating Water: Controls slime formation, prevents pipe blockages and equipment corrosion, with a >99.9% kill rate against sulfate-reducing bacteria and iron bacteria

4. Protection of Plastic and Rubber Products

● PVC Products: Shower curtains, wallpaper, flooring, conveyor belts, shoe soles, etc. Add 0.1%–0.3% to prevent mold growth and enhance anti-aging performance

● Polyurethane Materials: Cushions, gaskets, insulation materials; provides long-term antimicrobial and anti-mold properties, suitable for humid environments

● Silicone, Polyolefins: Wire sheaths, automotive parts (car canopies, door seals); prevents microbial adhesion and corrosion, extending service life

5. Marine Antifouling and Shipbuilding Industry

● Marine antifouling coatings: Blended with copper(I) oxide and other compounds to inhibit the attachment of marine organisms such as barnacles and diatoms, serving as an eco-friendly alternative to traditional organotin antifouling agents

● Marine facility protection: Offshore platforms, fishing nets, etc., to prevent biofilm formation and corrosion, maintaining >90% activity in high-salinity environments (15% NaCl)

6. Leather and Textile Industries

● Leather Processing: Added at 0.1%–0.2% during tanning and retanning processes to prevent mold-induced surface spots and strength loss; achieves Grade 1 mold resistance (ASTM G21) and increases yield by 18%

● Textile Printing and Dyeing: Used in anti-corrosion treatment of printing pastes and fabric coatings (e.g., ski jackets, raincoats) to prevent color fading and deterioration caused by microorganisms; suitable for the production of antimicrobial textiles

7. Wood and Bamboo Protection

● Wood Preservation: Add 0.2%–0.5% to prevent mold and termite damage, extending service life; particularly suitable for outdoor wooden structures

● Engineered Wood Production: Added to plywood and fiberboard to prevent mold growth and warping, improving product quality

8. Other Industrial Applications

● Oilfield Water Injection Systems: Added at 50 ppm to control pipeline corrosion caused by sulfate-reducing bacteria; extends the inspection cycle for water injection wells from 6 months to 18 months, increasing annual crude oil production by 12,000 metric tons

● Cosmetics and Personal Care: Shampoos, conditioners, face creams, etc. Replaces traditional formaldehyde-based preservatives and complies with EU Cosmetics Regulation (EC No 1223/2009)

● Pharmaceutical Industry: Pharmaceutical intermediates, disinfectants, and medical device sterilization; highly effective against drug-resistant bacteria

● Electronics Industry: Electronic cleaning agents and photoresists; prevents product defects caused by microbial contamination

● Building Materials: Water-based sealants and caulks; prevents mold growth and cracking, enhancing durability

● Agriculture: Acts as a new broad-spectrum biocide to control fungal and bacterial diseases in cereal crops, vegetables, and fruits; safe for plants

● Biological products: Cell culture media, vaccine preservation solutions; prevents microbial contamination; particularly suitable for systems following high-temperature sterilization

Advantages:

● Broad-spectrum antimicrobial activity: Inhibits bacteria (including spores), fungi, yeasts, and algae simultaneously, with particular efficacy against Pseudomonas species

● Environmentally friendly: Low toxicity and biodegradable; complies with international certification standards such as REACH, FDA, and FSC; serves as an alternative to traditional chlorine- and phenol-based preservatives

● Stable Performance: Maintains activity under extreme conditions (pH 2–12, temperature -20°C to 120°C, salinity 15%), making it suitable for a wide range of industrial environments

● Cost-Effectiveness: When used in combination with other biocides, synergistic effects can reduce dosage by 30%–50%, enhancing cost-effectiveness

Application Recommendations

Depending on the application, the recommended addition concentration is 0.05%–0.5%. Dosage may be appropriately increased in alkaline or high-temperature environments. Optimal results are achieved when used in combination with isothiazolinones, quaternary ammonium salts, and other agents.

Storage: Store in a sealed container, protected from light, in a cool, well-ventilated warehouse.

Packaging

25 kg cardboard drums, 200 kg plastic drums, 500 kg bags

BIT详情图4
BIT详情图3
BIT详情图2
BIT详情图1

English Synonyms:

1,2-benzisothiazoline-3-one;

proxelpl;

Proxan;

proxel;

Proxel XL;

Benzisothiazolin-3-one;

1,2-BENZISOTHAZOL-3(2H)-One;

1,2-Benzisothiazol-3(2H)-One;

1,2-Benzisothiazol-3-One (BIT);

1,2-Benzisothiazoline-3(2H)-one;

Benzisothiazolinone;

1,2-Benzisothiazol-3(2H)-One HYDRATE;

1.2-Benzisothiazolin-3-one;

1,2-benzothiazol-3(2H)-one; BIT;

1,2-phenylpropylisothiazoline-3-ketone


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