钪 (CAS No.7440-20-2)
- 物化性质
- 银白色软金属,密度约2.985 g/cm³,熔点1541℃,沸点2831℃。在空气中容易变暗,主要化合价为+3价。能溶于酸,可与热水作用放出氢气。在地壳中含量约为0.0005%,常与钆、铒等稀土元素混合存在。
- 纯度
- 99.99%
- 外观
- 银白色块状金属
- 熔点
- 1541℃
- 沸点
- 2831℃
- 包装
- 内双层塑料袋,可真空充氩气保护
English description(英文原文,共 1210 字符)
Product Name:Scandium
English Name:Scandium
CAS No.:7440-20-2
Aliases:Double-distilled scandium
Molecular Formula:Sc
Physical Properties:Silver-white soft metal with a density of approximately 2.985 g/cm³. Melting point 1541°C, boiling point 2831°C. It tarnishes easily in air and has a primary oxidation state of +3. It dissolves in acids and reacts with hot water to release hydrogen gas. Its abundance in the Earth's crust is about 0.0005%, and it is often associated with rare earth elements such as gadolinium and erbium.
Uses:Scandium is commonly used in the production of special glass and lightweight high-temperature alloys. It plays an important role in laser materials (such as GSGG), electric light sources (scandium sodium halide lamps), and aluminum-scandium alloys for aerospace, automotive, and marine structural components. It is also used in neutron filters and electron gun cathode components. Scandium sodium halide lamps are energy-saving and have a long service life.
Technical Specifications:
Purity: 99.99%
Appearance: silver-white lump metal
Melting point: 1541°C
Boiling point: 2831°C
Packaging: inner double-layer plastic bag, vacuumizable and argon-filled for protection
English Name:Scandium
CAS No.:7440-20-2
Aliases:Double-distilled scandium
Molecular Formula:Sc
Physical Properties:Silver-white soft metal with a density of approximately 2.985 g/cm³. Melting point 1541°C, boiling point 2831°C. It tarnishes easily in air and has a primary oxidation state of +3. It dissolves in acids and reacts with hot water to release hydrogen gas. Its abundance in the Earth's crust is about 0.0005%, and it is often associated with rare earth elements such as gadolinium and erbium.
Uses:Scandium is commonly used in the production of special glass and lightweight high-temperature alloys. It plays an important role in laser materials (such as GSGG), electric light sources (scandium sodium halide lamps), and aluminum-scandium alloys for aerospace, automotive, and marine structural components. It is also used in neutron filters and electron gun cathode components. Scandium sodium halide lamps are energy-saving and have a long service life.
Technical Specifications:
Purity: 99.99%
Appearance: silver-white lump metal
Melting point: 1541°C
Boiling point: 2831°C
Packaging: inner double-layer plastic bag, vacuumizable and argon-filled for protection
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常见问题
- 钪的 CAS 号是多少?
- 钪的 CAS 号是 7440-20-2。
- 钪的分子式和分子量是什么?
- 钪的分子式为 Sc。
- 钪的英文名称是什么?
- 钪的英文名称为 Scandium。
- 钪还有哪些别名?
- 钪又称 二次蒸馏钪。
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- 掌上化工钪产品页汇总了各供应商的最新报价与规格,地址:/chemicals/7440-20-2/。部分供应商价格为电议,可通过页面上的询价功能直接获取。
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