Rosin, turpentine oil

Rosin, turpentine oil

　　    Rosin is refined from natural pine resin through distillation. When pine resin is steam-distilled, the vapor that comes off is turpentine oil, and what remains is rosin.     Rosin is a transparent, hard, and brittle solid melt composed of various resin acids, appearing light yellow or yellowish-brown. At room temperature, it is easily soluble in various organic solvents and possesses unique chemical activity. It has properties such as moisture resistance, anti-corrosion, insulation, emulsification, and adhesion, making it an important industrial chemical raw material. It is widely used in industries such as papermaking, paint, medicine, dyeing, coatings, and textiles. Most of the rosin produced in Luoding is for export, with a small amount for domestic sales. The exported portion is mainly sold to countries and regions such as Japan, the Philippines, Singapore, Romania, West Germany, France, Italy, as well as Hong Kong and Macau.     Turpentine oil is a by-product generated during the processing of pine resin into rosin. Generally, about 150 kilograms of turpentine oil can be produced from processing one ton of pine resin. It is a volatile oil, a colorless or pale yellow liquid with a distinctive odor. It is widely used in industries such as paint and leather manufacturing, and in medicine, it serves as an antidote and skin stimulant. It can also be used to make fragrances.     Rosin and turpentine oil are among the city’s major forest by-products. The Luoding Forest Chemical Factory is a national second-grade enterprise and a designated national factory for deep processing of pine resin and export of gum rosin. It boasts strong technical capabilities, advanced production and product testing equipment, and implements TQC management throughout the plant, ensuring stable product quality. Its main products currently include over 10 varieties such as gum rosin, yellow medicine, and ACR additives. Among them, high-quality mineral processing agents such as ethyl sodium xanthate, butyl sodium xanthate, isobutyl sodium xanthate, isopropyl sodium xanthate, and No. 2 mineral processing oil, have an annual output exceeding ten thousand tons and enjoy a high reputation among users. (Luoding)