"Tiangong Kaiwu" is an ancient Chinese scientific and technological work, which shows many crafts and technologies with rich and detailed records. Today, with "Ethylenediaminetetraacetate Edta" as the core, I have created a short essay in classical Chinese as follows:

There are strange things in the world, the name is Ethylenediaminetetraacetate, simply called Edta. Its nature is special, and it is useful for all kinds of matters. Or it can make things fit and separate at will. In the way of metallurgy, it can adjust the combination of all qualities, so that impurities can be removed and pure quality remains, such as the clever carving of good work, and the beauty of jade can be found.

And in the system of medicine, it can stabilize all kinds of medicine and prevent it from changing. If the various flavors in the medicine are easily disturbed, and Edta is obtained, then it will be safe, and each will perform its duty, and the medicinal effect will be obvious.

And in the purification of water, there is also a wonderful effect. The sundries in the water, whether condensed or scattered, can be made clear and suitable for human use by Edta. Its function is like this, and it is sincerely a treasure of the world. Although it is invisible to the eyes, it cannot be ignored in the world.