铌粉 [7440-03-1]
-
英文名:Niobium powder
- 别名:铌
- CAS号:7440-03-1 分子式:NB 分子量:92.91
P143983-25g 铌粉 [7440-03-1] 99.5%,200目 25g 139.00
P143982-100g 铌粉 [7440-03-1] 99.99% 100g 750.00
P143984-100g 铌粉 [7440-03-1] 99.99% 100g 465.00
P143981-25g 铌粉 [7440-03-1] 99.99% 25g 268.00
P143980-5g 铌粉 [7440-03-1] 99.99% 5g 87.00
P143982-100g 铌粉 [7440-03-1] 99.99% 100g 750.00
P143984-100g 铌粉 [7440-03-1] 99.99% 100g 465.00
P143981-25g 铌粉 [7440-03-1] 99.99% 25g 268.00
P143980-5g 铌粉 [7440-03-1] 99.99% 5g 87.00
订货编号 | 商品名称 | 规格 | 包装 | 单价 | 促销价 | 会员价 | 数量 |
P143983-25g | 铌粉 [7440-03-1] | 99.5%,200目 | 25g | 139.00 | 139.00 | 登录可见 |
P143983-25g 铌粉 [7440-03-1] 99.5%,200目 25g 139.00
|
P143982-100g | 铌粉 [7440-03-1] | 99.99% | 100g | 750.00 | 750.00 | 登录可见 |
P143982-100g 铌粉 [7440-03-1] 99.99% 100g 750.00
|
P143984-100g | 铌粉 [7440-03-1] | 99.99% | 100g | 465.00 | 465.00 | 登录可见 |
P143984-100g 铌粉 [7440-03-1] 99.99% 100g 465.00
|
P143981-25g | 铌粉 [7440-03-1] | 99.99% | 25g | 268.00 | 268.00 | 登录可见 |
P143981-25g 铌粉 [7440-03-1] 99.99% 25g 268.00
|
P143980-5g | 铌粉 [7440-03-1] | 99.99% | 5g | 87.00 | 87.00 | 登录可见 |
P143980-5g 铌粉 [7440-03-1] 99.99% 5g 87.00
|
化学性质
闪亮、柔软、银白色、金属。硬而有延展性。室温下在空气中稳定。加热时与卤素反应生成五卤化物。溶于氢氟酸和浓硫酸,能与氢氧化钠溶液反应。 熔点 2468 °C(lit.) 沸点 4742 °C(lit.) 密度 8.57 g/mL at 25 °C(lit.)
质量标准
99.5%: |
外观Appearance 灰色粉末 |
X-射线衍射分析X-Ray Diffraction Conforms to standard |
纯度Purity ≥99.5% Based On Trace Metals Analysis |
ICP Assay Confirms Niobium component |
总金属杂质Total metallic impurities 3000ppm by ICP Atomic emission |
(Fe、Cu、C、N、Ni、Mn、Si、Mo、Cr、O、Ta) |
99.99%: |
外观Appearance 灰色粉末 |
X-射线衍射分析X-Ray Diffraction Conforms to standard |
纯度Purity ≥99.99% Based On Trace Metals Analysis |
ICP Assay Confirms Niobium component |
总金属杂质Total metallic impurities 200ppm by ICP Atomic emission |
危险性质
危险品标志 F,Xi
危险类别码 17-36/37/38
安全说明 17-36-26
WGK Germany -
RTECS号 QT9900000
HazardClass 8
PackingGroup II
用途及存储
主要用于生产不锈钢以及制造超导磁铁等
密封干燥保存。