Thirty - one crystals of polyoxometalates ( 1d, 2d, 3d ) were prepared by means of middle hydrothermal technique, molecular design and self - assembly, and characterized structurally by single crystal x - ray diffraction. the thermal stability, activity of catalysis and magnetism of some compounds were systematically studied. the continuous appearance of p - v - o, p - mo - o, v - mo - o, v - o system with novel structure enrich polyoxometalate chemistry, the reaction characterization and the synthesis law of molybdates, tungstates and vanadates under hydrothermal conditions were explored
由於p - v - o 、 p - mo - o 、 v - mo - o 、 v - o體系新結構不斷出現，豐富了多金屬氧酸
鹽化學，探討水熱條件下
釩、鉬、鎢物種的反應特性和生成規律，研究原料的選擇、配比、加料順序、濃度、酸度、反應溫度、反應時間等因素對產物的生成及結構的影響，為新的催化劑、導電材料、磁性材料的研製與開發積累經驗。
The transition metal vanadates with special morphology were synthesized by the hydrothermal technique at low temperature, and characterized by sem, xrd, ir and eds technique. the regulations and affecting factors for the synthesis of the transition metal vanadates with special morphology were obtained and the route of low temperature synthesis was developed. most attentions were payed to the synthesis of transition metal vanadates
本論文採用水熱方法進行具有特殊形貌的
釩酸
鹽晶體的合成研究工作，初步探索具有特殊形貌過渡金屬的
釩酸
鹽晶體的合成規律，找出合成過程中的影響因素，開發過渡金屬
釩酸
鹽的低溫合成路線，合成具有特殊形貌的
釩酸
鹽的單晶，有利於發現新材料。
Complexes 3 and 4 are two cage - like mixed - valent polyoxovanadates, which possess the same oxo vanadium clusters composed of spherical [ viv8vv7036c1 ] 6 " cage with a cl " ion encapsulated
化合物3和4是兩個籠形混價多氧
釩酸
鹽。它們具有相同的包裹著cl -離子的籠形[ viv8vv7o36cl ] 6 -
釩氧簇。
Copper and copper alloys ; determination of phosphorus content ; molybdenium blue and molybdovanadate spectrophotometric method
銅和銅合金.磷含量的測定.鉬藍和鉬
釩酸
鹽光度測量法
Produces the jintong brand of zinc oxide, which finds applications in rubber and tyres, medical uses, soft magnetic materials, chemicals, and glass
-主要產品有五氧化二
釩釩鐵合金
釩酸
鹽和塗料四大系列產品
Chemical analysis of copper. determination of phosphorus content. part 1 : spectrophotometric method with molybdovanadate
銅的化學分析.磷含量的測定.第1部分:用
釩鉬酸
鹽的分光光度計法
Silicate rocks. determination of vanadium
硅酸
鹽巖石化學分析方法
釩的測定
Hydrothermal synthesis is an effective route for the synthesis of transition metal vanadium oxide. tubular vanadium oxide can be synthesized by adjusting the ph of reaction system, regulating the ratio of reactants and controlling the reaction temperature
通過合理的調節反應物配比、調節體系的ph值、選擇合適的反應溫度，可以得到具有管狀結構的
釩酸
鹽晶體。
Discharge, recovery and utilization of sodium salt from vanadium pentoxide production
五氧化二
釩生產中鈉
鹽的排放與回收利用
Use ： used to analyse tin and vanadium, as an analytical reagent in determination of alkaloid and nitrite, etc
用途：分析釩和錫。測定生物堿和亞硝酸鹽等的試劑。
