A phospho molybdic acid catalyst was investigated for the esterification of fumaric acid with methanol in this paper. The influences of raw material ratio, reaction time and amount of catalyst used on the yield of DMF were investigated. 研究了以磷钼酸为催化剂,富马酸和甲醇为原料合成富马酸二甲酯(DMF),探讨了酸醇量比、反应时间、催化剂用量等工艺参数对DMF收率的影响。
Catalytic synthesis of ethyl chloroacetate with phospho-molybdic acid 磷钼酸催化合成氯乙酸乙酯
Kinetic studies of decomposition reactions of phospho-inhibitors by FIA 流动注射分析技术研究磷抑制剂分解反应动力学
Synthesis and Properties of tert-Butyl Calix [ 8] arene/ 12-Tungstic ( molybdic) Phospho ( silico) Heteropolyacid Supermolecular Inclusion Complexes 对叔丁基杯[8]芳烃/12-钨(钼)磷(硅)杂多酸超分子包合物的合成与性质
The various factors effecting the growth of gypsum whisker are discussed. The high quality hexagon phospho gypsum whisker with the diameter of 2~ 4 μ m, the ratio of length to diameter 10~ 70 is prepared. 对影响石膏晶须生成的各种因素进行探讨,制备出直径为2~4μm、长径比10~70、横截面为正六边形的高品质磷石膏晶须。
Studies on the Synthesis and Properties of a-Amino Phospho ( I) nic Acids α-氨基膦(次膦)酸类衍生物的合成及其性质
The method of bismuth-phospho molybdenum blue photometry determination of phosphorus by mathematic correction overcome vanadium obstruction had described in this paper. 本文详细叙述了用数学校正消除基体钒对磷铋钼蓝光度法测定磷的干扰的方法。
Phospho-ERK, or phosphorylated activated ERK, may translocate into nucleus to regulate the expression of certain genes through phosphorylation on transcription factors. p-ERK(phospho-ERK),即磷酸化细胞外信号调节激酶,是ERK的活性形式,可转入细胞核,通过磷酸化活化转录因子而调控特定基因的表达。
Screening and Identification of Phospho bacteria from Soil 土壤中磷细菌的筛选和鉴定
The phospho MAPK were detected by Western blot. 用westernblot方法检测磷酸化MAPK及PI3K蛋白的表达。
By using phospho-tungstic acid as catalyzer, urea peroxide as oxidant and methanol as solvent, styrene has been oxidized. 以磷钨酸为催化剂,过氧化尿素为氧化剂,甲醇作为溶剂,对苯乙烯进行环氧化反应。
Phospho C-JUN is not involved in the neuronal apoptosis induced by glutamate on cultured cerebellar granule neurons 磷酸化C-JUN不参与谷氨酸诱导的小脑颗粒神经元凋亡
Antimony-phospho molybdenum blue photometric determination of phosphorus in copper and copper alloy 磷锑钼蓝光度法测定铜及铜合金中磷量
The Utility of Phospho-gypsum and Fly Ash in Producing Fertilizer 磷石膏、粉煤灰在硅钙硫肥料生产中的应用
The mechanism showed that the organic phospho acid could chelate with Zn2+. Fe3+ and formed a film on the surface of steel, further, inhibited corrosion for steel. 其机理在于这种有机膦酸能与Zn2+、Fe3+等螯合附集在钢铁表面形成一层耐蚀性的膜。
Effect of Applying Phospho gypsum in Rape Cultivation 黔中地区黄泥土油菜施用磷石膏的效果