1) ammonium peroxypolytungstates
过氧聚钨酸铵
1.
: Three new ammonium peroxypolytungstates (NH4)4W4O6(O2)8·5H2O, (NH4)2W2O4(O2)3·3H2O and (NH4)2W3O7(O2)3·6H2O have been prepared by the method of dropping ammonia liquor into a30% H2O2 solution dissolving white powdery tungstic oxide hydrate at room temperature, adjusting varouspH values.
本文利用粉状白钨酸的反应活性,在室温下制备了W:O_2~(2-)为4:8、2:3和3:3等3个新的不同组成的过氧聚钨酸铵:(NH_3)_4W_4O_6(O_2)_8·5H_2O、(NH_4)_2W_2O_4(O_2)_3·3H_2O和(NH_4)_2W_3O_7(O_2)_3·6H_2O,并用IR、UV和XRD对过氧化物的性质进行了表征,研究了热分解最终产物WO_3的结构和电化学性质。
2) peroxopolytungstic acid thin film
过氧聚钨酸薄膜
3) peroxo phosphotungstate
过氧化磷钨酸季铵盐
4) peroxotungstic acid
过氧钨酸
1.
TEM revealed that the composite films consist of peroxotungstic acid nano-grains embedded in amorphous PVP matrix.
用溶胶-凝胶方法,制备了透明的过氧钨酸-聚乙烯吡咯烷酮(PTA- PVP)纳米复合薄膜材料。
5) quaternary ammonium decatungstate
十聚钨酸季铵盐
1.
Two new quaternary ammonium decatungstates,[Bmim]4(W10O32)(Bmin=N-methyl-N\'-n-butyimidazole) and [BunPy]4(W10O32),were synthesized in the ionic liquid.
利用离子液体首次合成两种十聚钨酸季铵盐{[Bmim]4W10O32(Bmin=N-甲基-N′-正丁基咪唑)和[BunPy]4W10O32},其结构经TG,1H NMR,13C NMR,IR和元素分析表征。
6) quaternary ammonium peroxotungsto phosphate
过氧化磷钨杂多酸季铵盐
1.
By reactions of three kinds of quaternary ammonium salts such as Bu4NCl,(C8H17)3CH3NCl and π-C5H5NC16H33Br with H2WO4 or Na2WO4,a series of quaternary ammonium peroxotungsto phosphate catalysts Q+3{PO4[W(O)O4]3[W(O)O4]}3-(Q+:quaternary ammonium cationR4N+) were prepared and their catalytic activities for expoxidant of styrene were studied with 1,2-dichloroethane as solvent and H2O2 as oxidation.
分别采用不同的季铵盐四丁基氯化铵(Bu4NCl)、三辛基甲基氯化铵(C8H17)3CH3NCl和溴化十六烷基吡啶(π-C5H5NC16H33Br)与钨酸或钨酸钠、磷钨酸反应制得过氧化磷钨杂多酸季铵盐Q3+{PO4[W(O)O4]3[W(O)O4]}3-(Q+:季铵盐正离子R4N+),以其为催化剂、二氯乙烷为溶剂、H2O2为氧化剂氧化苯乙烯,结果发现过氧化磷钨三辛基甲基铵有很好的催化活性,在反应温度55℃、pH=3。
补充资料：聚钨酸
分子式：
CAS号：
性质：参见钨酸
CAS号：
性质：参见钨酸
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