Haolang Chemical specializes in the production of bactericidal algaecides, mildew inhibitors, moss removers, and lichen removers.

Haolang isothiazolinone is mainly composed of 5-chloro-2-methyl-4-isothiazolin-3-one <｜> and 2-methyl-4-isothiazolin-3-one <‖>, with a ratio of approximately <｜>:<‖>=3:1 and an active ingredient content of 1.5%. This product functions by breaking the bonds of bacterial and algal proteins, thereby exerting its bactericidal effect. Upon contact with microorganisms, it rapidly inhibits their growth, leading to the death of biological cells. It can penetrate the slime biofilm attached to equipment walls, providing a bio-slime stripping effect. As a result, it strongly inhibits and kills common bacteria, fungi, algae, and other microorganisms in circulating water. It features high biocidal efficiency, good degradability of active ingredients, no residual formation, safe operation, good compatibility, strong stability, and low usage costs.

Applications

This product is a broad-spectrum, high-efficiency, low-toxicity, non-oxidizing biocide, making it an ideal biocide for industrial circulating cooling water and papermaking wastewater treatment. It is widely used in oil fields, papermaking, pesticides, cutting oils, leather, detergents, and cosmetics as a bactericide. It can be compounded with other non-oxidizing biocides to achieve a synergistic effect. At high doses, it shows significant efficacy in bio-slime stripping.
Technical Requirements

Usage Method

When used as a slime stripping agent, Haolang isothiazolinone is dosed at 150–300 mg/L. As a biocide, depending on the growth of bacteria and algae, it is dosed once every 3–7 days at a dosage of 80–100 mg/L. It should not be used together with oxidizing biocides such as chlorine.

Packaging and Storage

This product is packaged in dark plastic barrels, with a net weight of 25 kg per barrel. It should be stored in a ventilated, cool, and dry place, with a storage period of ten months.