A small amount of calcium silicate is often added to table salt as an anti-caking agent.
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The Chinese chemical naming pattern is metal + anion: 硅酸 (silicate) + 钙 (calcium) = CaSiO3. On food labels, 硅酸钙 appears as an anti-caking agent (抗结剂) in powders like salt, baking soda and seasoning.
