C11H19NOS Octylisothiazolinone OIT 99% biocide for paint

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US $20-25 / Kilograms | 500 Kilogram/Kilograms C11H19NOS Octylisothiazolinone OIT 99% biocide for paint (Min. Order)
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Quick Details
Chemical Auxiliary Agent
CAS No.:
Other Names:
Octyl isothiazolinone
Place of Origin:
Shandong, China (Mainland)
Dry-Film Protection
Coating Auxiliary Agents
Brand Name:
Model Number:
OIT 99%
Product Name:
C11H19NOS Octylisothiazolinone OIT 99% biocide for paint
Pale yellow to amber liquid
Total active Ingredient,%:
Chemical Name:
Active Ingredient:
99% 2-n-octyl-4-isothiazolin-3-one
Specific Gravity (g/ml) at 20°C:
PH(1% solution):
Metalworking Fluid Fungicide for Water-Based Cutting Fluids
25Kg per drum, 200Kg per drum or 1000Kg per IBC drum
Supply Ability
Supply Ability:
5000 Metric Ton/Metric Tons per Year C11H19NOS Octylisothiazolinone OIT 99% biocide for paint
Packaging & Delivery
Packaging Details
25Kg per drum, 200Kg per drum or 1000Kg per IBC drum for C11H19NOS Octylisothiazolinone OIT 99% biocide for paint.
Product Description


C11H19NOS Octylisothiazolinone OIT 99% biocide for paint

Metalworking Fluid Fungicide for Water-Based Cutting Fluids
Chemical Name: 2-n-octyl-4-isothiazolin-3-one(OIT)
CAS No: 26530-20-1
Soluble, synthetic, and semi-synthetic metalworking fluids or coolants provide an excellent environment for the growth of various microorganisms, including bacteria, mold, and yeast. If allowed to grow, these organisms can have detrimental effects on the fluids. For example, bacteria, which can grow very quickly, can destroy the integrity of the fluid by discoloration, destroying lubricity characteristics, and causing emulsions to split. Bacteria can also reduce the pH of the fluid, which can promote corrosion. Some forms of bacteria have objectionable odors. Fungi typically grow more slowly than bacteria, but can form large masses which clog filters and lines and in some cases lead to system shutdown; fungi also generate foul odors and can cause corrosion. The increased use of synthetic fluids over the past few years has led to an even greater need for the enhanced fungal control that OIT 99% broad-spectrum fungicida can provide.
For Tankside and Concentrate
OIT 99% biocide is a broad-spectrum fungicida that has been recommended and widely used for tankside control of fungi in metalworking central systems. OIT 99% broad-spectrum biocide is also an effective fungicide for use in many metalworking fluid concentrates with the appropriate stabilizer package. Due to the wide variations in metalworking fluid formulations, laboratory or small-scale tests are recommended to evaluate OIT 99% biocide in use- dilution and concentrate metalworking fluids before they are commercialized. OIT 99% broad-spectrum biocide is a highly effective, industrial fungicide that exhibits excellent fungistatic and fungicidal activity against fungi, including yeasts and mold, and Gram-Positive bacteria, and limited activity against Gram-Negative bacteria. Commonly known as octhilinone, 2-N-octil-4-isotiazolin-3-ona is the active ingredient of Octilisotiazolinona 99% biocide It is supplied as a 99 percent active liquid in propylene glycol.
Typical Properties
These properties are typical but do not constitute specifications
Pale yellow to amber liquid
Active Ingredient99% 2-n-octyl-4-isothiazolin-3-one
Water1.0% max
PH(1% solution)
Specific Gravity (g/ml) at 20°C


Octilisotiazolinona 99% biocide is soluble in methanol, ethanol, propylene glycol, acetone, ethyl ether, et-hyl acetate, chloroform, butyl Cellosolve, corn oil, and mineral oil.
The solubility of OIT 99% biocide in toluene is 25% w/v.
The solubility of OIT 99% biocide in water at 25°C is 480 ppm (active ingredient), although this may be increased by using suitable surfactants and emulsifiers.
OIT 99% fungicida is insoluble in heptane.
In concentrate and use-dilution metalworking fluids, the compatibility of OIT 99% biocide is concentration-dependent and varies from formulation to formulation. It is compatible with most metalworking fluid additives, including surfactants and amines.
Compatibility with amines may vary by the type, concentration and pH. Strong reducing agents, such as sulfides, mercaptans, bisulfites and metabisulfites, or strong oxidizingagents, such as hypochlorites, may affect the efficacy of OIT 99%  Laboratory or small-scale tests are recommended in order to evaluate OIT 99% compatibility in use-dilution or concentrate metalworking fluids prior to commercialization.
In-Use Stability: Octilisotiazolinona 99%  has excellent stability in end use dilutions of metalworking fluids. It is stable over a wide pH range (4-10) in water and in metalworking fluid systems. Concentrate Stability OIT Biocide stability, in metalworking fluid concentrates, is variable. We recommend checking stability and performance before commercialization of products. Ozzie has several recommended stabilizers to improve stability and compatibility in many types of concentrates.
Storage Stability
In general, the storage stability of OIT 99% fungicida product is excellent. The shelf life of the product is nominally twelve years at 25°C. It is strongly recommended, however, that both the stability and compatibility of OIT 99% fungicida in metalworking fluid formulations or systems be thoroughly examined before commercialization.
Key Features & Benefits
Features  Benefits
Highly effective microbicide
Extends metalworking fluid life, reduces downtime,
reduces makeup fluid use and reduces fluid disposal costs
Broad spectrum activity
Kills fungi and prevents the return of slime caused by fungal
microorganisms, eliminates clogged lines and filters and musty odors caused by fungi
Highly soluble in water and does not foamEasy to dose
Provides long lasting fungal controlCost effective versus competitive tankside treatments
Fast acting  Quickly controls growth and activity of odor-causing fungi

Effective at low use rates

and Biodegradable

Better for the environment
Does not contain, release or generate
Not subject to concern about formaldehyde, a known
Formaldehyde carcinogen
Applications/ Directions for Use
Method of Addition
OIT 99% biocide should be directly dispensed into metalworking fluid concentrates or use-dilution metalworking fluids using a metering pump or other point-of-use device where possible and uniformLy dispersed throughout the fluid.
Fluid Concentrate
OIT 99% biocide should be added to metalworking fluid concentrates at a level that ensures the final use-dilution fluid will contain 55 to 167 ppm of product (25 to 75 ppm active ingredient). OIT 99% biocide stability in a given concentrate should be determined prior to commercialization. Contact your local Dow representative for assistance in selecting one of several recommended stabilizers to enhance the performance and compatibility of OIT 99% in your metalworking fluid concentrate.
Use-Dilution Fluid
We highly recommend grossly contaminated systems be cleaned before treatment is begun.
Initial Dose: For a noticeably fouled system, add 0.24 to 0.72 lbs (7 to 21 fl oz) of OZZIE OIT99 Biocide per 1,000 gallons of fluid. This will provide 10 to 35 ppm active ingredient. Repeat until control is achieved.
Subsequent Dose 
For maintenance of a non-fouled system, add 0.045 to 0.29 lbs (1.3 to 8.6 fl oz) of OIT 99% Biocide per 1,000 gallons of fluid every four weeks. This will provide 2 to 15ppm active ingredient. A higher dose range and/or increased frequency of treatment may be required, depending upon the rate of dilution of the preservative with the makeup fluid, the nature and severity of contamination, level of control required, filtration.
25Kg per drum, 200Kg per drum or 1000Kg per IBC drum.
Packaging & Shipping


Our Services

Ozzie technical service laboratories provide a variety of sterilization efficiency tests which can help customers solve issues in regard to anti-corrosion, anti mildew, algae and sterilization problems.

Factory cleaning consultation and field support
Good production environment is an important prerequisite for quality assurance, Ozzie provides the following services:
1.Inspect the factory production environment and test the degree of contamination in the production process;
2.Help to establish a biological laboratory for testing of raw materials, water and sterile conditions of the finished product;
3.Complete test method;
4.To provide targeted lectures and training of technical personnel.

Physical and chemical analysis
1.Physical phase solubility experiment;
2.Chemical analysis;
3.Process support.

Company Information

Welcome to Ozzie Chemical(Dalian) Co.,Ltd.

Ozzie Chemical is the leading supplier of biocides in Aisa. We mainly produce isothiazolinone series biocides:CMIT/MIT,MIT, OIT, DCOIT,BIT.  We create added value by appreciating the needs of our customers – with competitive and innovative solutions.


We provide best-in-class products, service and knowledge to our customers, including: Formulation Expertise, Preservation and Dry Film Fungicides,Water Treatment Chemistries, Sanitizing and Disinfection Chemistries, Regulatory and Toxicology Research Expertise. We create added value by appreciating the needs of our customers - with competitive and innovative solutions.


Q: What’s your MOQ?

A: Usually, our MOQ is 500KG, so in this situation, we can send large products to you by sea, because ocean freight is much cheaper than international express cost. But if you really need a few quantity of chemicals and cannot find the suppliers locally, we can also help you.


Q: How can I get a free sample?

A: Kindly send us your address, free samples can be provided for you by FedEx, DHL, TNT. Usually the quantity of free sample is 100-500g (small bottle ), and it’s enough to test. Or if you need really more, it’s also ok. But pls note, the express cost is paid by the buyers.


Q: Can you manufacture the Customization product?

A:Please provide the specification of this product you request , after the evaluation , we will feedback to you.


Q: What documents you provide?

A: Usually, we provide Commercial Invoice, Packing List, Bill of loading, COA ,Origin certificate. If your markets have any special requirements, let us know.


Q: What is loading port?

A: Usually is Shanghai or Qingdao port.


Q: What is the payment terms?
A: L/C ,T/T.




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