Baicaoshuang (Sooty Ash) (Black powder; when sprinkled on water, it floats and does not sink for a long time, and the water does not change color. If it is adulterated with fake products, it will sink, and the water will turn brown.)
【Naming】
n 【Source】n
Compendium of Materia Medica
n 【Frequency of Use】n
E
n 【Origin】n
It is the soot attached to the stove or chimney after burning various grasses.
n 【Characteristics】n
It is a black powder or agglomerated into small granules, which become fine powder when rubbed by hand. It is light in weight and floats and disperses in water. It has no greasy feel. It is odorless and has a faint, slightly pungent taste.
n 【Identification】n
The best quality is black, light, fine, and free of impurities.
n 【Category】n
Other