Now commonly used preservatives are: sodium benzoate, nitrate, nitrite and sulfur dioxide (SO2), are used in food preservatives, sodium phenylpotassium is usually used in drinks preservatives, formalin is used in fish preservatives.

kathon is one of the isothiazolinones, the English abbreviation CMIT/MIT, the chemical formula is C8H9ClN2O2S2, mainly composed of 5-chloro-2-methyl-4-isothiazolin-3-one (CIT) and 2-methyl- 4-isothiazolin-3-one (MIT) composition. Isothiazolinones act by breaking bonds in bacterial and algal proteins

1,2-Benzisothiazolin-3-one English abbreviation BIT, CAS#2634-33-5, BIT antiseptic fungicide is a new generation of long-acting fungicide without CIT/MIT and AOX, Dalian Tianwei Chemical Co., Ltd. has specially developed a variety of products and formula products for different forms based on BIT active substances, such as: 3Q-BIT10, 3Q-BIT20, 3Q-MB5, etc.

Antifungal agents have the same effect as preservatives, universal antibacterial, and have a good inhibitory effect on different fungi and bacteria and antifungal bacteria; long-lasting non-toxic, no peculiar smell, very stable; emulsification that does not damage the matrix Effect; the scope of use is very wide.

The application of preservatives poses a huge challenge. At present, the main industrial preservatives used in liquid detergents are as follows: