查询词典 sodium carbonate

When all the sodium has dissolved, a mixture of 164 parts of ethyl phenylacetateand 118 parts of diethyl carbonate is added during 5 minutes and the mixture is maintained at the boil for a further hour.

当所有的纳都溶解后，然后在五分钟内添加164份乙基乙酸苯酯和118份二乙基碳酸酯的混合物，混合物再另外维持一个小时的沸腾状态。

The release of carbon dioxide from glycerol carbonate provides the target product glycidol under the catalysis of sodium phosphate.

重点对碳酸甘油酯脱CO2得到缩水甘油的反应时间、反应温度、反应压力、催化剂种类及用量等因素进行了考察。

The white low-density powder of the the sodium salt of polyaspartic acid was got by dropping the hydrolyzable solution to wiscked high speedly carbinol which Consumption amount is about 3-6 times to the amount of solution, the powders density is about 0.35g/ml.4 Polyaspartic acid was characterized by NMR and IR.5 The scale inhibition behavior of polyaspartic acid was studied and result shows: The calcium carbonate inhibition rate is up to 99% at the dosages of 12.5mg/ Land when pH value is 9.0, Ca2+ concentration is 120mg/L and HCO3- concentration is 366mg/L.6 The primary design was put forward for industrialized production of PASP.

在此工艺下得到聚天冬氨酸钠粉术，外观为白色的轻质粉术，堆积密度0.35g／ml，不用进行脱色和粉碎。 4。用红外光谱和核磁共振谱图对聚天冬氨酸进行了表征。 5。对合成的聚天冬氨酸钠对CaCO_3的阻垢性能进行了研究。结果表明：在Ca~(2+)离子浓度120mg/L(以碳酸钙计300mg/L)，HCO_3~-离子浓度为366mg/L(以碳酸钙计600mgL)，PH值=9.0的条件下，阻垢剂浓度达到12.5mg/L时阻垢率可达99％。

Huadu wenquan agreggate of wenquan metres deep, well produced water temperature 63 ° c, water quality is low sodium salt and calcium carbonate, magnesium - quanshui radiopathological deversified orignate of the beneficial and trace elements of the human body, are more than thenaturaldrinking water quality of international standards, as far as experts, long-term drinking and bathing, softening, lower blood pressure vessel, regulating the nerve function, and the prevention of ccvd, osteoarthropathy and dysfuntion spirit caused by a variety of diseases.

花都温泉的温泉井深1500米，出水温度63℃，水质量属低钠盐、重碳酸钙镁型，泉水富含多种有益与人体的矿物质微量元素，均超过天然矿泉水水质的国际标准，据专家论证，长期饮用和沐浴，具有软化血管、降低血压、调节神经等功效，而且可以起到预防心脑血管疾病，骨关节病及精神功能紊乱等引起的多种疾病。

The processing principle for the preparation of tribasic lead sulphate from bismuth hydrometallurgy waste residue by ammonium hydrogen carbonate transformation-nitric acid leaching-lead deposition with sulphuric acid-sodium hydroxide synthesis is introduced.

介绍了铋冶炼浸渣采用碳酸氢铵转化—硝酸浸出—硫酸沉铅—氢氧化钠反应合成三碱式硫酸铅的工艺原理。

Basic copper carbonate with high purity was prepared from copper scraps via lixiviating with dilute nitric acid,reacting with sodium bicarbonate and poaching.

以废杂铜为原料，用稀硝酸浸出硝酸铜溶液，与碳酸氢钠反应得到碱式碳酸铜粗品，漂洗后得到高纯度碱式碳酸铜。

Chemical Products (various types of chromium salts);ì·; chromium anhydride; sodium sulfide; sulfur; Strontium; barium carbonate; quicklime; chromium oxide green; red potassium alum; chromium oxides; Barium oxides; other oxides

公司在全体员工的共同努力下，从小到大，已开发出了多种系列产品，如：硫化碱、氧化铬绿、碳酸钡、碳酸锶、氯化钡、沉淀硫酸钡、硫磺、生石灰等。

Lactose*, Skimmed Milk Powder*, Vegetable Oils, Dietary Fibres (Galacto-oligosaccharides*, Polyfructose), Calcium Carbonate, Vitamin C, Taurine, Emulsifier, Choline Chloride, Iron Sulphate, Vitamin E, Citidine 5'-monophosphate, Zinc Sulphate, Adenosine 5'-monophosphate, Uridine 5'-monophosphate, Inosine 5'-monophosphate, Niacin, Guanosine 5'-monophosphate, Folic Acid, Copper Sulphate, Vitamin a, Vitamin B12, Pantothenic Acid, Beta-carotene, Biotin, Vitamin D, Thiamin, Vitamin B6, Manganese Sulphate, Potassium Iodide, Vitamin K, Sodium Selenite.

乳糖*，*脱脂奶粉，植物油，膳食纤维（半乳糖寡糖*，多聚果糖），碳酸钙，维生素C，牛磺酸，乳化剂，氯化胆碱，硫酸亚铁，维生素E，Citidine 5'-单磷酸，硫酸锌，腺苷5'-磷酸尿苷5'-磷酸肌苷5'-磷酸，烟酸，5'-鸟苷磷酸，叶酸，硫酸铜，维生素A，维生素B12，维生素B3，β-胡萝卜素，维生素H，维生素D，硫胺素，维生素B6，硫酸锰，碘化钾，维生素K，亚硒酸钠。

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。