Sodium hydroxide (NaOH) is an important basic chemical raw material, widely used in the papermaking, textile, chemical, petroleum, pharmaceutical, and food industries. Its industrial production primarily utilizes the electrolysis of brine.

Dichloromethane (DCM, chemical formula CH₂Cl₂, CAS No. 75-09-2) is a colorless, transparent, volatile liquid with a sweet-smelling odor. It is insoluble in water but miscible with most organic solvents. Due to its rapid volatility and strong dissolving power, it is widely used as a solvent.

Formic acid (formic acid) is the simplest carboxylic acid and is widely used in leather tanning, textile printing and dyeing, rubber additives, pharmaceuticals, pesticides, and chemical synthesis.

Polyacrylamide (PAM) is a water-soluble polymer made from acrylamide monomer (AM) through free radical polymerization. It is primarily used as a flocculant, thickener, drag reducer, and soil conditioner, and is widely used in water treatment, papermaking, oil extraction, and mining.

Sodium hydroxide (NaOH) is an important basic chemical raw material, widely used in the papermaking, textile, chemical, petroleum, pharmaceutical, and food industries. Its industrial production primarily utilizes the electrolysis of brine.