Traditional Culture Encyclopedia - Traditional culture - The difference between black gypsum and white gypsum
The difference between black gypsum and white gypsum
White plaster is another kind of lead plaster, which is made of edible vegetable oil and palace powder as the main raw materials, decocted with medicinal materials, and reacted with palace powder after slag removal. Black plaster refers to an external dosage form made of medicinal materials, edible vegetable oil and red lead, which is coated on the base and applied to the skin. It has protective, sealing and therapeutic effects, and its paste layer is thick and lasting.
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