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Calcium Carbonate CaCO3 - PubChem
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12-碳酸酯_百度百科
Webcarbonic acid, (H2CO3), a compound of the elements hydrogen, carbon, and oxygen. It is formed in small amounts when its anhydride, carbon dioxide (CO2), dissolves in water. … acid, any substance that in water solution tastes sour, changes the colour of … carbonic anhydrase, enzyme found in red blood cells, gastric mucosa, pancreatic … Web12-碳酸酯在人体内广泛分布于组织和体液中，在中耳、咽、扁桃体的浓度与血清浓度相近，在胸膜和腹膜液中可达较高浓度，在肺组织和支气管分泌物中的药物浓度为红霉素的4 … A carbonate is a salt of carbonic acid (H2CO3), characterized by the presence of the carbonate ion, a polyatomic ion with the formula CO2−3. The word carbonate may also refer to a carbonate ester, an organic compound containing the carbonate group C(=O)(O–)2. The term is also used as a verb, to describe carbonation: the process of raisin… bb bass tuba