The difference between alum and alum. Is potassium aluminum sulfate alum

Alum and alum are different names for the same substance, and potassium aluminum sulfate is the chemical name for alum. Alum is a potassium aluminum sulfate double salt containing crystalline water, with the chemical formula KAlSO42 · 12H2O. It is widely used in traditional Chinese medicine and daily life. Alum, also known as white alum in traditional Chinese medicine, has the effects of detoxifying and insecticidal substances, drying dampness and relieving itching, stopping bleeding and diarrhea. It is commonly used to treat conditions such as eczema, hemorrhoid bleeding, and persistent diarrhea. When used as a traditional Chinese medicine, alum needs to be calcined. The calcined alum is called dried alum, which has milder medicinal properties. Alum is commonly used in daily life for water purification, food additives, and other fields, utilizing its flocculation effect to adsorb impurities. Aluminum potassium sulfate is the chemical name for alum, referring to its anhydrous compound form, while alum specifically refers to aluminum potassium sulfate hydrate containing 12 crystal waters. Both belong to different forms of the same substance in chemical essence.

When using alum, attention should be paid to controlling the dosage, as excessive intake may cause aluminum accumulation. The use of alum in traditional Chinese medicine should strictly follow medical advice, and avoid contact with the eyes and mucous membranes when applied topically. After alum purification, it is necessary to fully precipitate and filter the water. It is not recommended to drink alum treated water for a long time. Aluminum alum should be stored in a dry and ventilated place to prevent moisture and clumping. Alum solution is acidic, avoid mixing with alkaline substances when using.