五氧化二铌 (CAS No.1313-96-8)
- 物化性质
- 白色晶体,熔点1460℃,相对密度4.47,相对介电常数35-50,带隙3.4eV。受热至400℃时外观变黄。溶于氢氟酸、热硫酸及碱,不溶于水,是最稳定的氧化物。其水合物Nb2O5·xH2O受热分解,可溶于浓硫酸、浓盐酸、氢氟酸及强碱。
- 纯度
- 99.99%
- 熔点
- 1460℃
English description(英文原文,共 983 字符)
Product Name:Niobium pentoxide
English Name:Niobium pentoxide
CAS No.:1313-96-8
Aliases:Niobium(V) oxide, Niobium pentoxide
Molecular Formula:Nb2O5
Physical Properties:White crystalline solid, melting point 1460°C, relative density 4.47, relative permittivity 35-50, band gap 3.4 eV. Turns yellow when heated to 400°C. Soluble in hydrofluoric acid, hot sulfuric acid and alkalis; insoluble in water. It is the most stable oxide. Its hydrate Nb2O5·xH2O decomposes on heating and is soluble in concentrated sulfuric acid, concentrated hydrochloric acid, hydrofluoric acid and strong alkalis.
Uses:Used in the manufacture of niobium salts, optical glass, electronic ceramics and catalysts. Also used as a high-refractive-index optical coating material and as a raw material for producing metallic niobium by reduction or electrolysis.
Technical Specifications:
Purity: 99.99%
Molecular weight: 265.81
Melting point: 1460°C
Relative density: 4.47
Relative permittivity: 35-50
English Name:Niobium pentoxide
CAS No.:1313-96-8
Aliases:Niobium(V) oxide, Niobium pentoxide
Molecular Formula:Nb2O5
Physical Properties:White crystalline solid, melting point 1460°C, relative density 4.47, relative permittivity 35-50, band gap 3.4 eV. Turns yellow when heated to 400°C. Soluble in hydrofluoric acid, hot sulfuric acid and alkalis; insoluble in water. It is the most stable oxide. Its hydrate Nb2O5·xH2O decomposes on heating and is soluble in concentrated sulfuric acid, concentrated hydrochloric acid, hydrofluoric acid and strong alkalis.
Uses:Used in the manufacture of niobium salts, optical glass, electronic ceramics and catalysts. Also used as a high-refractive-index optical coating material and as a raw material for producing metallic niobium by reduction or electrolysis.
Technical Specifications:
Purity: 99.99%
Molecular weight: 265.81
Melting point: 1460°C
Relative density: 4.47
Relative permittivity: 35-50
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常见问题
- 五氧化二铌的 CAS 号是多少?
- 五氧化二铌的 CAS 号是 1313-96-8。
- 五氧化二铌的分子式和分子量是什么?
- 五氧化二铌的分子式为 Nb2O5,分子量约 265.81。
- 五氧化二铌的英文名称是什么?
- 五氧化二铌的英文名称为 Niobium pentoxide。
- 五氧化二铌还有哪些别名?
- 五氧化二铌又称 氧化铌(V)、五氧化二铌(V)。
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