Copper sulfate pentahydrate (chemical formula: CuSO4·5H2O) is also called copper sulfate crystal. To distinguish it from "anhydrous copper sulfate", it is usually read as "copper sulfate pentahydrate" and has an irregular shape. Massive crystals of different sizes, dark blue or light blue, translucent.

The relative molecular mass is 250. Commonly known as blue vitriol, bile vitriol or copper vitriol. It has the effects of inducing vomiting, removing putrefaction, and detoxifying; treating wind and phlegm congestion, laryngeal paralysis, epilepsy, tooth decay, aphthous sores, rotten eyes, hemorrhoids, and swelling, and has certain side effects.

Cholevitine is natural hydrated copper sulfate, which is the common name of copper sulfate pentahydrate (CuSO?·5H?O). To distinguish it from “anhydrous copper sulfate”, it is usually read as “copper sulfate pentahydrate”. ", with a relative molecular mass of 250, is a widely distributed sulfate mineral. It is a secondary mineral formed after copper sulfide is decomposed by oxygen.

Cholevitine is produced in the oxidation zone of copper deposits and often appears on the inner walls and pillars of mine tunnels. It is formed by the crystallization of water in the mine.

The crystals of bile vitriol are in the shape of plates or short columns. When these crystals are gathered together, they are granular, massive, fibrous, stalactite-like, crust-like, etc. They have a beautiful blue color but will turn into an opaque light greenish-white powder due to loss of water if exposed to dry air. At the same time, bile alum is easily soluble in water.

Cholesterol is a chemical raw material in pigments, batteries, pesticides, wood preservatives, etc.

Original or artificially produced hydrated copper sulfate crystals. Expose to dry air and slowly weather. When heated and burned, it loses crystal water and turns white, and when exposed to water, it turns blue again. It is brittle, brittle, and soluble in water. Odorless, bitter and astringent.

It tastes sour, pungent, and cold. poisonous. Functions: Expelling wind and phlegm, eliminating accumulated stagnation, drying dampness and killing insects. It is used for wind-heat, phlegm and saliva congestion, and epilepsy. It is used externally to treat aphthous ulcers, red and rotten eyes due to wind-heat, and swollen and toxic sores. Usage and dosage: 1 to 2 minutes, mostly in pills or powders. For external use, grind an appropriate amount into powder and apply it or wash the affected area with hot water.