iron board cover with foam_table cloth function
Potassium Sorbate, designated as E202, is a widely accepted preservative due to its effectiveness in preventing molds and yeasts from growing in various food products. Found in items such as cheese, yogurt, baked goods, and dried fruits, E202 enhances the shelf life of food while maintaining its quality. Like Sodium Benzoate, Potassium Sorbate is particularly efficient in acidic environments, making it a popular choice for preserving many low-pH foods.
preservatives 211 202

The production of polybutadiene rubber involves the polymerization of 1,3-butadiene, which can be achieved through various methods, including anionic, radical, and coordination polymerization. The most common industrial process is anionic polymerization, typically conducted in an organic solvent at low temperatures, which allows for greater control over the molecular weight and structure of the resultant polymer.
poly butadiene rubber
