樟脳, whose IUPAC name is 1,7,7-trimethylbicyclo[2.2.1]heptan-2-one, is a terpenoid organic compound with a chemical formula of C10H16O. It is a white or transparent waxy solid at room temperature and can be used to repel insects. 樟脳 is extracted from the trunk of 樟脳 tree. The older the 樟脳 tree, the more 樟脳 is in it. The extraction method is to cut the tree trunk into small pieces and distill it with water. After the 樟脳 oil is heated, it rises with water vapor, and it can form 樟脳 when it comes into contact with the pottery jar placed above to cool it. In the early days of northern Taiwan, the mountain forests were mostly primitive 樟脳 forests, and many old 樟脳樹齢は千年以上でした。その後、日本政府は大量の樟脳 for export in Taiwan. Therefore, Taiwan's 樟脳 export once reached the first place in the world. Most of the mothballs used in the world are synthesized chemically.This substance may be harmful to the environment, and special attention should be paid to water bodies.Store in a sealed, ventilated, dry place, avoid contact with other oxides.
