硫酸镁

Based on the microcomsic analysis,mathematical models for magnesium removal and phosphorus loss from phosphate rock were set up.

在此微观分析的基础上，建立了硫酸预处理磷矿的磷溶出及镁脱除的数学模型。

The invention provides a chemical nickel tungsten phosphorus plating solution for magnesium alloy, which consists of 10-20 g/L of nickel sulfate, 7-15 g/L of sodium tungstate, 29-50 g/L of sodium citrate, 14-30 g/L of sodium hypophosphite, 14-30 g/L of sodium carbonate, 5-12 g/L of ammonium bifluoride, additive accounting for 0.00005-0.003 percent of total weight and the balance being water.

本发明提供的是一种镁合金化学镀镍钨磷镀液。它由硫酸镍10-20g/L、钨酸钠7-15g/L、柠檬酸钠29-50g/L、次亚磷酸钠14-30g/L、碳酸钠14-30g/L、氟化氢铵5-12g/L、占总重量0.00005-0.003％的添加剂和余量的水组成。

Tetrachloroterephthalic acid was prepared by chlorinating terephthalic acid, oleumsolvent and iodine catalyst. Tetrachloroterephthalic acid was acylated by sulphurous oxychloride in the presence of DMF to form tetrachloroterephthaloyl chloride. The acyl chloride product was fluorinated by potassium fluoride and esterified by methanol to synthesize dimethyl tetrafluoroterephthalate. The ester was reduced with potassium borohydride and lithium chloride to give tetrafluoroterephthalyl alcohol. The above product was bromated in the hydrobromic acid to obtain 4-bromomethyl-2,3,5,6-tetrafluoro-benzene methanol. 4-Methyl-2,3,5,-6-tetrafluorobenzene ethanol was obtained by reducing the bromide with magnesium. In the exist of DCC and DMAP, tefluthrin was got by the condensation reaction between 4-methyl-2,3,5,6-tetrafluoro-benzene methanol and-(1RS,3RS)- 3-(2- chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cycolpropanecar-boxylate acid.

对苯二甲酸与氯气在碘存在下以发烟硫酸为溶剂进行氯化制备四氯对苯二甲酸；再以DMF为催化剂与二氯亚砜反应生成四氯对苯二甲酰氯；以氟化钾为氟化剂，环丁砜为溶剂置换氟化，再与甲醇酯化得到四氟对苯二甲酸甲酯；以KBH4-LiCl为还原剂二甲醚为溶剂反应制得四氟对苯二甲基苄醇；以氯苯为溶剂在溴化氢溶液中溴化得到溴化产物；在乙醇溶液中经镁粉还原得到4-甲基-2，3，5，6-四氟苄醇；甲基苄醇与功夫酸在催化剂二环己基碳二亚胺和4-二甲氨基吡啶作用下缩合得到七氟菊酯，总收率达43.6%。

The methods of metallograph, SEM, EDS, dynamic potential scanning were applied to test the properties, and the coating conditions were optimized.

本工作以硫酸镍为主盐对镁合金进行了纳米TiO2/Ni-P复合镀，并用金相法、扫描电镜、X射线能谱、动电位扫描等手段研究了其性能，并优化了施镀条件。

Serum total cholesterol was determined by isopropanol withdrawing and ferric-glacial acetic acid -sulfuric acid developing method, serum triglyecride by isopropanol withdrawing and acetylacetone developing method,serum high density lipoprotein-cholesterol by magnesium phosphotungstate mehod, respectively. Serum low density lipoprotein-cholesterol was calculated by the equation: LDL-C=TCh--0.2 TG.

采用异丙醇抽提、三氯化铁-冰醋酸-硫酸显色法检测血清总胆固醇，用异丙醇抽提、乙酰丙酮显色法检测血清甘油三酯，用磷钨酸镁法检测血清高密度脂蛋白-胆固醇，用等式LDL-C=TCh--0.2TG计算血清低密度脂蛋白-胆固醇。

Through the analysis of szaibelyite ,the manufacture method of boric acid and magnesium carbonate from szaibelyite by sulfuric acid,CO_2 and ammonia water is determined.

对硼镁矿成分进行分析，从而确定了采用硼镁矿制取硼酸联产碳酸镁工艺路线———用硫酸分解硼镁矿制取硼酸，硼酸母液经处理后加入碳化氨水制取碳酸镁。

The results show that magnesium and aluminum theoretically can be thoroughly dissolved from the blast furnace slag by diluted sulfuric acid pretreatment on the blast furnace slag even if the ended concentration of sulfuric acid is 0.001mol/L, while the titanium basically could not be dissolved. Therefore it is theoretically indicated that the separation of the magnesium and aluminum from the slag with the least titanium loss by diluted sulfuric acid pretreatment is possible.

结果表明，采用稀硫酸对高炉渣进行预处理，当终酸浓度即使为0.001mol·l~(-1)时，镁、铝理论上也能全部被酸浸出，而钛在0.001 mol·l~(-1)的酸浓度条件下基本不被浸出，从而从理论上可以说明对高炉渣采用稀酸预处理可以很好的将炉渣中的镁、铝等杂质分离出来，而钛极少被浸出。

Lactose*, Skimmed Milk Powder*, Vegetable Oils, Dietary Fibres (Galato-oligosaccharides*, Polyfructose), Calcium Carbonate, Sodium Citrate, Magnesium Citrate, Vitamin C, Emulsifier, Choline Chloride, Iron Sulphate, Zinc Sulphate, Vitamin E, Niacin, Vitamin D, Folic Acid, Copper Sulphate, Vitamin a, Pantothenic Acid, Beta-carotene, Biotin, Vitamin B12, Thiamin, Vitamin B6, Manganese Sulphate, Potassium Iodide, Vitamin K, Sodium Selenite.

乳糖*，*脱脂奶粉，植物油，膳食纤维（低聚半乳糖*，多聚果糖），碳酸钙，柠檬酸钠，柠檬酸镁，维生素C，乳化剂，氯化胆碱，硫酸亚铁，硫酸锌，维生素E，烟酸，维生素D，叶酸，硫酸铜，维生素A，维生素B3，β-胡萝卜素，维生素H，维生素B12，硫胺素，维生素B6，硫酸锰，碘化钾，维生素K，亚硒酸钠。

Demineralise Whey*, Vegetable Oils, Skimmed Milk Powder*, Lactose, Dietary Fibres (Galacto-oligosaccharides*, Polyfructose), Fish Oil, Potassium Citrate, Calcium Chloride, Calcium Carbonate, Sodium Citrate, Magnesium Chloride, Vitamin C, L-arginine, Emulsifier, Taurine, 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, Biotin, Beta-carotene, Vitamin D3, Thiamin, Vitamin B6, Manganese Sulphate, Potassium Iodide, Vitamin K1, Sodium Selenite.

无矿物质乳清*，植物油，脱脂奶粉*，乳糖，膳食纤维（半乳糖寡糖*，多聚果糖），鱼油，柠檬酸钾，氯化钙，碳酸钙，柠檬酸钠，镁，氯，维生素C，L -精氨酸，乳化剂，牛磺酸，硫酸亚铁，维生素E，Citidine 5'-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，叶酸酸，硫酸铜，维生素A，维生素B12，维生素B3，维生素H，β-胡萝卜素，维生素D3，硫胺素，维生素B6，硫酸锰，碘化钾，维生素K1，亚硒酸钠。

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。