What are the functions and effects of talc?

Talc is a mineral. Talc is the softest mineral currently available. Anyone who has seen talc should know that talc is very beautiful in appearance, and if something scratches it lightly, it will leave a mark, which shows its fragility. Talc is also a very good medicinal material. Many doctors use talc to make medicine. It seems that talc has many functions and effects.

They are flat, rhombic or irregular blocks in shape and of varying sizes. The whole body is white, egg blue or yellowish white, with a pearly luster on the surface, translucent or opaque. The texture is soft and delicate, smooth to the touch, and the white powder can be scraped off with your fingers. Odorless, tasteless, slightly cool

feel. It is best to choose one that is clean, bluish-white, smooth and free of stones. Microscopic identification: Under transmitted polarizing microscope: colorless and transparent in thin slices. Low positive protrusion. The highest interference color can reach the third level orange, while the highest interference color of some talcs only reaches the middle of the second level. Nearly parallel extinction (sliding angle is only 2°-3°). Positive extension symbol. Biaxial crystal. Negative light. The optical axis angle (2V) is very small, generally within 10°. Refractive index Np = 1,538-1.550, Nm = 1.575-1.594; birefringence Ng-Np = 0.030

-0.050.

1. Identification of silicon: Take about 0.2g of this product powder and place it in a platinum crucible, add an equal amount of calcium fluoride (or sodium fluoride) powder, mix well, add concentrated sulfuric acid 5

ml, slightly heat, immediately cover the platinum crucible with a drop of water hanging on it, wait a moment, remove the crucible cover, the water drop appears white and turbid.

2. Identification of magnesium: Take 0.5g of the powder of this product, put it in a flask, add 10ml of hydrochloric acid (4→10), cover with a watch glass, heat to a slight boil, shake the beaker from time to time and keep it at a slight boil for 40 minutes, remove it, filter it with fast filter paper, and wash the residue with water 4-5 times.

The above materials clearly tell us the role and efficacy of talc, but there are some aspects of human medicine that are not very good for the human body. When taking talc, you must carefully ask your doctor what you should pay attention to. If any adverse reactions occur during use, seek medical attention promptly.