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Isothiazolinones Water Treatment Chemicals - China

price: contact company for price


CAS No. 26172-55-4, 2682-20-4 Molecular weight: 115.16


Isothiazolinones is composed of 5-chloro-2-methyl-4-thiazoline-3-ketone (CMI) and 2-methyl-4-thiazoline-3-ketone (MI). The bactericidal effect of Isothiazolinones is carried out through breaking the bond between bacteria and algae protein. When contacted with microbes, Isothiazolinones can quickly inhibit their growth, thus leading to death of these microbes. Isothiazolinones has strong inhibition and biocidal effects on ordinary bacteria, fungi and alga, and has many advantages such as high biocidal efficiency, good degradation, no residual, safety in operation, good compatibleness, good stabilization, low cost in operation.

Isothiazolinones can mix with chlorine and most cation, anion, and non-ionic surfactants. When used at high dosage, its biosludge stripping effect is excellent.

Isothiazolinones is a kind of fungicidal with properties of broad spectrum, high efficiency, low toxicity and non-oxidative, it is the ideal biocidal in industrial circulating cool water system and in wastewater treatment in oilfield, papermaking, pesticide, cutting oil, leather, detergent and cosmetics etc..


Notes: 2%, 4% and 8% or any concentration can be supplied on demands.

items index

Grade I Grade II

Appearance Amber transparent liquid Light yellow or light green transparent liquid

Active content % 14.0-15.0 1.5-1.8

pH (as it) 2.0-4.0 2.0-5.0

Density (20C)g/cm3 1.26-1.32 1.02-1.05

CMI/MI (wt %) 2.5-3.4 2.5-3.4


When used as sludge stripper for grade II, the dosage of 150-300mg/L is preferred, when used as boicide, the dosage of 80-100mg/L is preferred, and charges every 3-7 days. No used together with oxidative fungicidal such as chlorine, and no used in cooling water system containing sulfur. When used together with quaternary amine, the effect will be better. When used as industrial fungicide, the dosage of 0.05-0.4% is preferred.

Package and Storage:

200L plastic drum, IBC(1000L), customers’ requirement. Storage for ten months in shady room and dry place.

Safety Protection:

Corrosive, Avoid contact with eye and skin, Wear splash resistant safety goggles and rubber glores.once contacted, flush with water.


Isothiazolinones;3(2H)-Isthiazolone, 5-chloro-2-methyl;2-Methyl-3(2H)-Isothiazolone

For any questions and needs please contact us below

Company Contact:

  • Phone: 86-632-5796776

  • Address: Zhongtian Road, Shizhong district, Zaozhuang city,, Zaozhuang, China

  • Email: Email

Published date: September 4, 2012 -

  • Business Description: Youbang Chemicals Co., Ltd. ( YBC), founded in 1999, is one of the largest Chinese manufacturers of polymers, biocides, phosphonates and other water treatment chemicals.

    YBC has acquired its Certification for ISO9001 Quality Management System (QMS), Certification for ISO9001 14001 Environmental Management System (EMS) and Certification for OHSAS 18001 Occupational Health and Safety Assessment Series.

    YBC has also been granted network access license for water treatment chemicals for electric power systems and SINOPEC.

    YBC boasts of stable product quality, reliable product performance, complete product line of water treatment chemicals, customized products, rapid response, timely delivery and perfect post sales service. With a total staff number of 300, an annual capacity of 50,000 MT and an annual turnover of $65 Million, YBC provides its products through reliable agencies and distributors worldwide.

    YBC is dedicated to manufacture of high quality water treatment chemicals for extensive applications in numerous fields of industrial water treatment, including but not limited to: oilfields, boilers, cooling towers, geothermal power plants, and reverse osmosis systems, etc.

    YBC is always committed to R&D and innovation. YBC s pilot and bench test facilities allow for various performance evaluation tests on a basis of customized formulations.

    YBC, your professional supplier and partner of water treatment chemicals in China.

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