Is rosin toxic, and what is its market price?
Rosin is also called pine gum, among other names. It refers to a non-volatile natural resin obtained from pine resin as a raw material through different processing methods. It is an important chemical raw material, widely used in industries such as soap, papermaking, paint, and rubber. So is rosin toxic? And what is the price?
1. Is rosin toxic?
Rosin is not toxic. Rosin itself has low toxicity to the human body, but because it often contains heavy metals such as lead and toxic compounds, as well as peroxides produced after oxidation, it can seriously affect human health. According to a CCTV report, at the Yangjiashan livestock and poultry wholesale market in Changsha, Hunan Province, vendors used industrial rosin to remove feathers from ducks in just one minute. The market was therefore investigated by local food safety and industry and commerce departments and ordered to suspend business for rectification. Law enforcement officers said that rosin-treated ducks contain toxic compounds such as heavy metals and can easily cause cancer. Medicinal rosin, however, must undergo strict quality testing, and the content of all kinds of toxic substances must meet certain standards before it can be used as medicine.
2. How much does rosin cost?
The price of rosin is not fixed. Because it varies according to different types, prices, and manufacturers, the price will differ. In general, however, the price of rosin is 11-20 yuan per kilogram. In addition, prices differ among manufacturers. For example, the rosin price of Zhengzhou Mingxin Chemical Products Co., Ltd. is 24 yuan per kilogram, the rosin price of Zhengzhou Chaoqun Chemical Co., Ltd. is 22 yuan per kilogram, the rosin price of Henan Mingrui Food Additive Co., Ltd. is 12 yuan per kilogram, the rosin price of Zhengzhou Ruiheng Chemical Products Co., Ltd. is 22 yuan per kilogram, the rosin price of Zhengzhou Chenyang Chemical Co., Ltd. is 16 yuan per kilogram, and the rosin price of Jiangxi Mingrui Chemical Company is 21 yuan per kilogram.
The sources of rosin are mainly divided into three types: gum rosin, wood rosin, and tall oil rosin. Among them, gum rosin is the rosin collected in the form of tapping pine resin and then processed and refined. Its characteristic is that pine trees can be tapped continuously, which is conducive to the full use of resources. China is rich in pine resin resources and is the country with the largest gum rosin output. Gum rosin output will still remain above 350,000 tons for quite a long time. Wood rosin is rosin obtained by cutting pine roots or trunks into pieces, extracting the resin with a solvent, and then processing and refining it. It is mainly produced in the United States, and its raw materials depend on the primitive pine forests in the southeastern part of that country. Now, due to the reduction of forest resources, raw materials for wood rosin are in short supply, and output has dropped from 316,000 tons in 1950 to the current 20,000 tons. Tall oil rosin comes from the wood pulping and papermaking industry. It is obtained by processing the black liquor recovered from sulfate pulping. It was originally inferior to gum rosin in performance, but later, as quality continued to improve, its performance is now similar to that of gum rosin.
Summary: The above is the relevant introduction on whether rosin is toxic and its price. Note that the above rosin prices are for reference only, and the specific price should be based on the actual price. I hope this is helpful to friends who need it!