金属碲/碲粉/碲锭
Tellurium
分子式 Te
分子量 127.60
别名 金属碲
性状 斜方晶系银白色结晶。溶于硫酸、硝酸、王水、氰化钾、氢氧化钾;不溶于冷水和热水、二硫化碳。
熔点:452℃
沸点:1390℃
密度:6.25
备注: 以上描述,仅作参考,并不表示您收到的产品,与此项描述完全相符,产品的出厂标准,请参见质量标准。
质量标准
99.99% metals basis,0.5-2mm
外观Appearance Grey/Silver Granules
X-射线衍射X-Ray Diffraction Conforms to Structure
纯度Purity ≥99.99% Based on Trace Metals Impurities
尺寸Size: 0.5-2mm
ICP: Confirms Tellurium Component Confirmed
痕量金属杂质total metallic impurities ≤200ppm by ICP Atomic emission
Granules,99.999% metals basis:
外观Appearance Silver to Grey Granules
X-射线衍射X-Ray Diffraction Conforms to Structure
纯度Purity ≥99.999% Based on Trace Metals Impurities
ICP: Confirms Tellurium Component Confirmed
痕量金属杂质total metallic impurities ≤20ppm by ICP Atomic emission
powder,99.997% metals basis:
外观Appearance Grey to Dark Grey Powder or Granular Powder
X-射线衍射X-Ray Diffraction Conforms to Structure
纯度Purity ≥99.997% Based on Trace Metals Impurities
ICP: Confirms Tellurium Component Confirmed
痕量金属杂质total metallic impurities ≤30ppm by ICP Atomic emission
贮存 密封保存。
用途 碲加到钢中,可增加钢得延展性;铸铁中的痕量碲可使铸件表面坚硬、耐磨;碲还用作电池的极板印刷铅字,以及蓝、棕、红色玻璃的着色剂。
联合国编号 3288
Risk: R25-
Safety : S45-
Hazard : T -