Appearance: clear, transparent liquid Odor: tung unique taste transparency (24h / 20 ℃): allow a small amount of precipitation gravity (20/4 ℃): 0.9360--0.9395 refractive index (20 ℃): 1.5170--1.5220 iodine value: 163--173 saponification value: 190--195 Drying time: 3 to 7 days in summer, winter, 3 to 20 days. Color: Red <5 acid value (mgKOH / g): <7 moisture and volatile matter: <0.20% impurities: <0.20% tung: the difference between the compounds and solid solutions of the same: both single-phase material. Different: the A and B form a solid solution, whose structure is consistent with the main crystal tung oil manufacturers, between A and B have no specific molar ratio, can fluctuate within a certain range, such as after ruby, A and B form a compound AmBn, the resultant structure is Unlike A is different from B, is a new structure tung agricultural machinery, A and B there is a certain molar ratios. Generally non-proportionally in the impression compound, a compound is composed of several fixed by simple mathematical ratio of the composition elements, but the compound was more non-geometric compound, particularly an inorganic compound. The so-called non-proportionally compound, is a compound or a non-stoichiometric ratio of the entire composition, i.e., between the constituent atoms of these compounds is not smaller than an integer, and the composition may be within a certain range of variation, does not comply with the law of definite composition. Vegetable oil, tung oil industry | Wei Connaught Chemical (certified) | Weifang tung oil provided by Connaught Chemical Co., Ltd. Qingdao Wei. Qingdao Wei Connaught Chemical Co. (www.qdweinuo.com) is Qingdao, chemical products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Wei Connaught Chemical leadership with the staff warmly welcome all inquiries negotiations to create great promise a better future for the chemical.