Powder

Powder is a substance composed of a large number of fine solid particles. The size of these particles is usually less than 1 mm, and can even reach the nanometer level. The shape, size and composition of powders can vary greatly, which determines the properties and uses of powders.
Powders are widely used in our lives Industrial production: used to manufacture metal products, ceramic products, plastic products, etc. Building materials: such as cement, gypsum, etc. Food industry: such as flour, milk powder, seasonings, etc. Pharmaceutical industry: such as drug raw materials, excipients, etc. Cosmetics industry: such as foundation, talcum powder, etc.
The characteristics of powders are small particle size, fluidity, dispersibility, and porosity. Powder is a common form of matter, and its characteristics and applications are very wide. Due to its special properties, powder plays an important role in many fields