As an important inorganic chemicals, calcium carbonate with different shapes and crystal polymorphs has different usages.

1、

At present mainly uses the union system alkaline process production calcium carbonate soda ash.

目前主要用联合制碱法生产碳酸钙纯碱.

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2、

It can prevent scale formation, calcium carbonate in particular, in water system.

可阻止水中成垢盐类形成水垢, 特别是碳酸钙垢的形成.

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3、

Moreover, the composition of the ash contents was found to be mainly calcium carbonate.

进一步的分析表明, 灰分的主要成分为碳酸钙.

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4、

A new solid base catalyst of calcium methoxide calcium carbonate as the starting material.

以碳酸钙为基础材料,制成高效酯交换催化剂甲醇钙.

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5、

The characterization of modified calcium carbonate by oil absorption ratio was introduced.

介绍了吸油率法直接表征碳酸钙改性效果的方法.

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6、

Limestone is rock composed of calcium carbonate.

石灰石是由碳酸钙所构成的岩石.

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7、

It'should not be combined with acidic medicine , e . g . vitamin C, calcium chloride , penicillin, etc.

忌于酸性药物如维生素C 、氯化钙、青?素等配伍使用.

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8、

By which of the fellowing methods may metallic calcium be obtained from molten calcium chloride?

用下列哪一种方法,可以从融化的氯化钙中制取钙单质?

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9、

Scope Calcium chloride manufacturing Calcium chloride manufacturing.

经营范围:氯化钙制造.

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10、

The groundwater of Xujiahe formation is mainly the calcium chloride type of gas field water.

须家河组地层水主要为氯化钙型的气田地层水.

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11、

Rennet calcium chloride and curing and the main factors were explored for the activity of rennet.

氯化钙的添加量和成熟条件等主要工艺参数,并探讨了影响凝乳酶活力的主要因素.

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12、

Nanometer calcium carbonate was prepared taking calcium chloride, ammonia and carbon dioxide as material by carbonization.

利用氯化钙、氨水和二氧化碳为原料,采用碳化法制备纳米碳酸钙.

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13、

Calcium chloride is often used in warm or tropical areas.

氯化钙是用来在温暖地区和热带地区的.

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14、

Industrial calcium chloride aqueous solution used as anti-icing fluid has some corrosive action to common metals.

工业氯化钙水溶液作为防冻液有一定的腐蚀性.

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15、

The salt effect of methyl acetate-methanol-water system by adding calcium chloride was studied at 20℃.

在20℃条件下研究了加入氯化钙对醋酸甲酯 - 甲醇 - 水体系产生的盐效应.

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16、

Anhydrous calcium chloride is used as the catalyst for preparing n-Butyl lactate formnte.

无水氯化钙为催化剂,乳酸、正丁醇直接酯化合成乳酸正丁酯.

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17、

Production: calcium chloride, magnesium chloride. Sales: chemical products ( excluding dangerous goods ).

生产: 氯化钙、氯化镁. 销售: 化工产品 ( 不含危险品 ).

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18、

Using 1 % calcium oxide has more single caffeine production rate, extraction rate and purity.

1%氧化钙水溶液单纯提取咖啡因的得率、提取率和纯度较高.

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19、

This paper discussed the preparation of calcium peroxide from calcium oxide and peroxide at normal temperature.

以生石灰和双氧水为原料,通过添加稳定剂,实现了过氧化钙的常规合成.

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20、

The Calcium Oxide is used to mix oxygen with the steel.

这些生石灰是用来将氧混合在熔化的钢水中.

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