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- The crude sodium carbonate ash obtained from these plants. 苏打灰从这些植物中获得的粗碳酸钠灰
- sodium carbonate method 碳酸钠法
- Packing of sodium carbonate for industrial use II. 工业用碳酸钠包装2。
- A method of producing crystal sodium fluoride with sodium fluosilicate and sodium carbonate is introduced. 本文介绍了以氟硅酸钠、纯碱为原料生产晶体氟化钠的工艺,并对操作条件作了详细的说明。
- The determination method of molybdenum and sodium carbonate content in sodinm molybdate was proposed. 提出了工业钼酸钠中钼和碳酸钠含量的测定方法。
- The reductive extraction method of bastnasite baked by sodium carbonate and low acidity HCI leaching for making rare earth chloride is reported. 氟碳铈矿纯碱焙烧低酸浸出,在还原条件下直接用盐酸浸出制取工业氯化稀土。
- This paper presents a test method of sodium carbonate from produced water in ASP drive oilfield using flow injection analysis(FIA). 该文提出了用流动注射法(FIA)测定ASP驱油田产出水中的碳酸钠浓度的方法。
- A method of producing crystal sodium fluoride with sodium fluosilicate and sodium carbonate is introduced. And its optimal operations are described in detail. 本文介绍了以氟硅酸钠、纯碱为原料生产晶体氟化钠的工艺,并对操作条件作了详细的说明。
- The experiment on the improving crystal quality of monohydrate sodium carbonate have been carried out by the method of adding the surfacant in the bittern. 笔者对河南桐柏安棚天然碱卤水进行了添加活性剂的蒸发试验。
- The analytical method of sodium carbonate,sodium hydrogen carbonate and total alkality in natural alkali was studied by combining nonwater titration with acid-base titration. 研究了非水滴定和酸碱滴定相结合测定天然碱中碳酸钠、碳酸氢钠和总碱度的分析方法;
- In case of fire, use sodium carbonate or dry sand (never use water). 着火时使用碳酸钠或干沙子灭火(禁止用水);
- The precipitation titrametric method is used to determining barium molybdate by sodium carbonate to fusing and decomposition samples,precipitation and separating interference elements. 采用碳酸钠熔融分解试样,沉淀分离干扰元素,以沉淀滴定法测定钼酸钡。
- The production cost of new process was obviously lower than that of conventional method,because raw material was rice husk,sodium carbonate was used cyclically and fuel was not needed. 由于用稻壳为原料、碳酸钠循环使用、不需外加其它燃料,与传统方法相比,新工艺成本明显降低。
- Nanosized-aluminum hydroxide powder is prepared by the carbonation method from sodium aluminates solution and carbon dioxide in a rotating bed with helix channels. 以偏铝酸钠溶液和二氧化碳气体为原料,采用螺旋通道型旋转床超重力法制备纳米氢氧化铝粉体。
- It is stirred with 10%sodium carbonate solution(50ml)and then with water (50ml), after which it solidifies. 与10%25碳酸钠溶液(50毫升)混合搅拌,然后再用50毫升水混合搅拌,从而析出固体。
- A similar pigment made synthetically by heating clay, sodium carbonate, and sulfur together. 佛青,群青用把粘土、碳酸钠和硫放在一起加热的方法合成的相似的颜料
- The discoloring effectiveness of raw L-lactide with active carbon method is better than that of precipitation method. 用活性炭对L-丙交酯粗品进行脱色比用沉淀法脱色效果好,收率较高。
- Examples are sodium carbonate and potassium acid phthalate which are used to standardize acid and base solutions. 例如碳酸钠和邻苯二酸氢钾,分别用来标定酸和碱溶液。
- Hard water which can be softened by adding sodium carbonate is called permanent hard water. 经过加入碳酸钠能被软化的硬水,称为永硬水。
- Aspirin is synthesized through O-acylating reaction from salicylic acid and anhydride acetic acid with anhydrous sodium carbonate as catalyst. 以水杨酸和乙酸酐为原料,采用无水碳酸钠作为催化剂经O-酰化反应合成了阿司匹林。