கற்பூரம், 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. கற்பூரம் is extracted from the trunk of கற்பூரம் tree. The older the கற்பூரம் tree, the more கற்பூரம் is in it. The extraction method is to cut the tree trunk into small pieces and distill it with water. After the கற்பூரம் oil is heated, it rises with water vapor, and it can form கற்பூரம் 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 கற்பூரம் forests, and many old கற்பூரம்மரங்கள் ஆயிரம் ஆண்டுகளுக்கு மேலானவை. பின்னர், ஜப்பானிய அரசாங்கம் ஒரு பெரிய தொகையை குறைத்ததுகற்பூரம் for export in Taiwan. Therefore, Taiwan's கற்பூரம் 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.
