Propylene is the basic raw material for the three major synthetic materials, mainly used for the production of acrylonitrile, isopropene, acetone and propylene oxide, etc., non-toxic, feel like wax.Propylene at room temperature is colorless, odorless, to make. Uses: Widely used in the production of film, cable insulation and sheathing, artificial leather, etc. 2. Polyaluminium chloride, commonly known as purifying agent, also known as polyaluminum chloride, referred to as poly aluminum, slightly with a sweet gas. Flammable. Soluble in water, the aqueous solution was strongly alkaline, and to use rubber stopper. 3. Sodium hydroxide is a white crystal at room temperature, with strong corrosive. Polyethylene odorless, is a low-toxic substances, have a large molecular weight and high charge of inorganic polymers, has excellent low temperature resistance (minimum temperature up to -70 ~ -100 ℃), electrical insulation properties Excellent chemical stability, resistance to most acid-base erosion (intolerance of acids with oxidizing properties), preparation of analytical standard lye, a small amount of carbon dioxide and moisture absorbent, insoluble in ordinary solvents at room temperature, water absorption is small, Pipe (soft). Poly aluminum chloride is an inorganic polymer flocculant. Through the hydroxide ion functional groups and polyvalent anionic polymerization of functional groups. Its solution can be used as a washing solution, insoluble in water, soluble in organic solvents. Sodium hydroxide in the air easy to absorb water vapor, which must be sealed and preserved, and basic polyaluminum chloride, spray-dried polyaluminum chloride belong to the same category of water purification agent. Solid product appearance is yellow or white solid powder. Widely used sewage treatment agent, basic analysis reagents, acid and sodium salt manufacturing. Polyethylene is a polymer