查询词典 sodium carbonate

One of the most widely employed materials of the chemical industry, it is used in manufacturing chlorine, caustic soda, sodium carbonate, bicarbonate of soda, soap, and chlorine bleach, as well as in ceramic glazes, metallurgy, food preservation, curing of hides, road de-icing, water softening, photography, and many consumer products, including mineral waters, mouthwashes, and table salt itself.

氯化钠是化学工业最广泛使用的材料之一，用于制造氯、氢氧化钠、碳酸钠、碳酸氢钠、含氯聚合物，另外在陶瓷釉、冶金、食物保存、皮肤消毒、道路除冰、水的软化、照相及许多消费商品、调味用。

One of the most wi de ly employed materials of the chemical industry, it is used in manufacturing chlorine, caustic soda, sodium carbonate, bicarbonate of soda, soap, and chlorine bleach, as well as in ceramic glazes, metallurgy, food preservation, curing of hi de s, road de -icing, water softening, photography, and many consumer products, including mineral waters, mouthwashes, and table salt itself.

氯化钠是化学工业最广泛使用的材料之一，用于制造氯、氢氧化钠、碳酸钠、碳酸氢钠、含氯聚合物，另外在陶瓷釉、冶金、食物保存、皮肤消毒、道路除冰、水的软化、照相及许多消费商品、调味用。

Dimethyl N-cyanodithioiminocarbonate was facilely synthesized from calcium cyanamide, sodium carbonate and carbon disulfide, using dimethyl sulfate as a methylating agent in aqueous phase with an overall yield of 72% and purity of 99%.

用氰氨化钙、碳酸钙和二硫化碳等为原料，硫酸二甲酯为甲基化试剂，采用水相合成工艺制得荒酸二甲酯，总收率72%，纯度99%。

The catalytic behavior of sodium carbonate was analyzed and discussed in terms of structure component of wood.

根据木材的结构成分对碳酸钠的催化行为进行了分析。

That urine and hexamethylenetetramine taking the place of sodium carbonate as the precipitants could also produce 1D Co3O4 showed lights on understanding the mechanism of formation of 1D structures.

以六次甲基四胺、尿素等代替Na2CO3溶液作为沉淀剂，均得到了一维纳米结构的Co3O4，表明CO2-3在水镁石CoO2层间的嵌入是得到一维结构水热产物的关键。

Using hydrofluoric acid and sodium carbonate as sediments, removal of metal impurities from WPA was studied.

采用氢氟酸和碳酸钠作为沉淀剂，对湿法磷酸进行了脱除金属杂质的试验研究。

Said method includes the following steps: firstly, adopting dipotassium hydrogen phosphate, magnesium sulfate, calcium chloride, citric acid, ammonium ferric citrate, disodium EDTA, sodium carbonate and minor element solution A5 to prepare culture liquor of nostoc according to a certain ratio; then controlling temp. light intensity and deration condition of the culture liquor to make culture of nostoc; third ste, harvesting nostoc; fourth ste, extracting nostoc polysaccharide; and fifth step, purifying, harvesing and drying nostoc polysaccharide.

首先是配制葛仙米培养液：采用磷酸氢二钾、硫酸镁、氯化钙、柠檬酸、柠檬酸铁铵、乙二胺四乙酸二钠盐、碳酸钠，微量元素溶液A5按比例配制；其次是葛仙米的培养：控制温度、光强、光质、培养液通气条件；第三是葛仙米的收获；第四是葛仙米多糖的提取；第五是葛仙米多糖的纯化、收获与干燥。

Neutral fat or paraffin— Add 1 g of Stearic Acid to 30 mL of anhydrous sodium carbonate solution (1 in 60) in a flask, and boil the mixture: the resulting solution, while hot, shows not more than a faint opalescence.

中性脂肪或蜡：取硬脂酸1g，加入已装有30mL无水碳酸钠溶液(1：60)的烧瓶中，加热煮沸，产生的溶液在加热时不显示浑浊。

The experimental process on synthesis of roxithromycin was studied by using erythromycin oxime and MEMC as raw material under the catalytic action of anhydrous sodium carbonate.

研究了以无水碳酸钠为催化剂，红霉素肟与甲氧基乙氧基氯甲醚为原料，一步合成罗红霉素的实验过程。

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。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。