Methylisothiazolinone

Methylisothiazolinone [  MIT ]

Preservative, Mildew-Proof, Antibacterial, Bactericidal, Algaecidal, and Water Treatment Product Series.

Specification of Product

Product Name :   Methylisothiazolinone

                            MIT

                            2-methyl-4-isothiazolin-3-one

                  

CAS No.: 2682-20-4

EINECS No.:  220-239-6

Molecular Formula: C₄H₅NOS

Molecular Weight:  115.1

Methylisothiazolinone (MIT) type: MIT-50%, MIT-25S

Aspect	MIT-50%	MIT-25S
Active Concentration	50% high concentration, salt-free (stabilized by organic alcohols)	25% low concentration, stabilized by divalent metal salts (magnesium/calcium)
Compatibility	Excellent, no salting out/precipitation in all systems, suitable for sensitive formulations	Moderate, metal ions tend to cause coagulation of emulsions/dispersions, only for simple systems
Applicable Conditions	pH 2.0~10.0, temperature resistance ≤65℃, excellent acid-alkali/high temperature resistance	pH 2.0~8.5, temperature resistance ≤55℃, easy to inactivate under alkaline/high temperature conditions
Storage & Cost	6~9 months under normal temperature and sealed conditions, high selling price, low addition level (0.02%~0.2%)	More than 12 months under normal temperature and sealed conditions, low selling price, high addition level (0.05%~0.4%)
Core Features	High activity, no ionic interference, suitable for high-end precision formulations	High stability, low cost, friendly for extensive industrial operation

Methylisothiazolinone (MIT) Applications

This product is a highly efficient, heat-resistant, water-based, broad-spectrum bactericide and preservative that can effectively kill algae, bacteria, and fungi. It is widely used in industrial cooling water, oilfield reinjection water, papermaking, coatings, paints, rubber, cosmetics, photographic films, and detergents.

Water Treatment Chemicals

Potassium Hydroxide

Sodium Carboxymethyl Cellulose

Polyanionic Cellulose

Tetrahydrofuran

Thiourea

Ethyl acetate