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别名:碳酸钙/轻质碳酸钙/沉淀碳酸钙/轻钙/沉降碳酸钙/変理石/云石/方解石/Calcium carbonate 产地:美国SIGMA 品牌:SIGMA和国药 包装规格:100mg 货号:碳酸钙/轻质碳酸钙/沉淀碳酸钙/轻钙/沉降碳酸钙/変理石/云石/方解石/Calcium carbonate 我们提供的分析标准品,是用于色谱法(HPLC、GPC、GC)、 电泳法、 显微学 、...
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white or colourless crystals or white powder or chunks 2.3 Storage Calcium carbonate is stable and should be stored in a well-closedcontainer in a cool, dry place. 2.4 Chemical Properties Calcium carbonate occurs in two forms—hexagonal crystal known as calcite, and orthorhombic form, aragonite....
Calcium Carbonate is the calcium salt of carbonic acid which is used as an anticaking agent and dough strengthener. it is available in varying particle sizes ranging from coarse to fine powder. it is practically insoluble in water and alcohol, but the presence of any ammonium salt or carbon di...
Calcium carbonate is stabilized against acid, method of using it in the manufacture of acidic paper, and processes for their preparationPURPOSE: To provide a form of calcium carbonate stabilized against an acid so as to be made usable as a filler at a time of the production of neutral to ...
Calcium carbonate is used therapeutically as a phosphate buffer in hemodialysis, as an antacid in gastric hyperacidity for temporary relief of indigestion and heartburn, and as a calcium supplement for preventing and treating osteoporosis. (NCI04)|Carbonic acid calcium salt (CaCO3). An odorless, ...
calcium carbonate - a salt found in nature as chalk or calcite or aragonite or limestone carbonate - a salt or ester of carbonic acid (containing the anion CO3) chalk - a soft whitish calcite calcite - a common mineral consisting of crystallized calcium carbonate; a major constituent of limes...
20. To the reaction between calcium carbonate and hydrochloric acid,CaCO_3(s)+2HCl(aq)- →CaCl2(aq) +CO2(g)+H2O(1)The volume of CO2 produced is measured against time. Excessive CaCO3 powder is reacted with 20.0 mL of 2.0 mol dm-3 HCl solution under 25 ℃. The graph of V(CO2)ag...
46. When powdered calcium carbonate reacts with dilute hydrochlori c acid, the carbon dioxide gas is produced. If the complete reaction of calcium carbonate with dilute hydrochlori c acid produces a maximum volume of 30cm3of carbon dioxide gas in 100 seconds, what is the average rate of ...