The use of red blood salt and potassium
There is a thing in the world, called Potassium Ferrocyanide Salt (Potassium Ferrocyanide Salt), which has different properties and is widely used.

Red blood salt potassium, often yellow in color, like crystal powder, is very important in the chemical industry. Or as a dye, so that the color is on the object, the color is bright and lasting; or into the road of metallurgy, to help the refinement of gold, so that it is pure and excellent in quality.

In the matter of learning, it is also indispensable. When encountering the genus of iron, it can undergo strange changes, and the blue is heavy, thinking that the test of iron is accurate, and it is a good agent for identification.

And in the preservation of karma, it also has its own merits. It can protect the freshness of things, prevent them from spoiling, and prolong the life of all things.

Although the use of red blood salt potassium is great and widespread, it should be used with caution. It may have a slight poison. If you accidentally touch it or eat it, it may harm your body. Therefore, those who use this thing must follow the regulations and prepare protective equipment to protect their own safety.

Cover red blood salt potassium, although it is a small thing, the merits of various karma should not be underestimated. If you make good use of it, it will be for the benefit of the world.