Pyrithione salt is a grass green crystalline powder, insoluble in water, slightly soluble in dimethyl sulfoxide, has high stability, can be stored for a long time in the dark, is a broad-spectrum, high-efficiency, low-toxic, environmentally friendly Antifouling and bacteriostatic agents.
Use of pyrithione salt
Pyrithione salts are mainly used in marine antifouling paints, architectural coatings, metal processing, pesticides, etc.
Pyrithione salt considerations
1. Although this product is low in toxicity and safe to use, it still needs to avoid contact with mouth, eyes and skin. Please do protective work during operation.
2. Please store in a cool place away from light.
The basic synthetic route of the pyrithione salt is to react the soluble sodium pyrithione salt with the soluble copper salt at a certain temperature, wash, filter and dry to obtain a green powder of pyrithione copper salt. The reaction medium can be water, or water plus a surfactant, or an organic solvent, or a mixture of these materials. The key material for determining the production cost, purity and color of the pyrithione copper salt is the purity of the sodium pyrithione and the copper salt, and determining whether the shape of the pyrithione salt particles is needle-like, flake or granular, and the surface The hydrophilic and lipophilic nature of the property is closely related to the reaction medium system. The size of the pyrithione copper salt particles has a great relationship with the reaction medium and the production equipment. It is also possible to further adjust the size of the particles by using a grinding device in the later stage to make the distribution range narrower.