Calcium acetate is a chemical compound that consists of calcium cations (Ca2+) and acetate anions (CH3COO-). Here's some information about calcium acetate:

1. Chemical Formula: Calcium acetate is represented by the chemical formula Ca(C2H3O2)2. It is formed by the combination of calcium hydroxide (Ca(OH)2) with acetic acid (CH3COOH).

2. Function: Calcium acetate is commonly used as a food additive and also has various applications in other fields. In the food industry, it is used as a preservative, pH regulator, and firming agent. It helps to inhibit the growth of certain microorganisms in food and maintain its quality.

3. Medicinal Uses: Calcium acetate is also used as a medication, particularly in the treatment of hyperphosphatemia (elevated levels of phosphate in the blood) in patients with kidney disease. It works by binding to dietary phosphate in the intestine and reducing its absorption, thus lowering phosphate levels in the blood.

4. Calcium Supplement: Calcium acetate can be used as a calcium supplement due to its calcium content. Calcium is an essential mineral that plays a vital role in maintaining healthy bones, teeth, and overall body functions.

5. Safety Considerations: Calcium acetate is generally regarded as safe when used as a food additive or as a medication under the guidance of healthcare professionals. However, excessive intake of calcium may lead to hypercalcemia (high levels of calcium in the blood), which can cause adverse health effects. It is important to follow recommended dosages and consult with a healthcare professional before using calcium acetate as a medication or dietary supplement.

6. Regulation and Labelling: The use of calcium acetate as a food additive is regulated in many countries, including the United States and European Union. Food manufacturers are required to adhere to specific guidelines and usage levels. Calcium acetate may be listed on food labels under its respective international numbering system (E263 in the EU) or as "calcium acetate."

It's worth noting that calcium acetate should be used according to the recommended guidelines and purposes as determined by regulatory authorities, healthcare professionals, or dietary recommendations.