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Merck
CN

209651

Sigma-Aldrich

powder, −100 mesh, ≥99.5% trace metals basis

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About This Item

经验公式(希尔记法):
Se
CAS Number:
分子量:
78.96
EC 号:
MDL编号:
UNSPSC代码:
12161600
PubChem化学物质编号:
NACRES:
NA.23

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描述

gray

质量水平

方案

≥99.5% trace metals basis

表单

powder

反应适用性

reagent type: catalyst
core: selenium

电阻率

1.2 μΩ-cm, 0°C

粒径

−100 mesh

沸点

684.9 °C (lit.)

mp

217 °C (lit.)

密度

4.81 g/mL at 25 °C (lit.)

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一般描述

硒粉是一种细小的粉末状物质,由硒元素的小颗粒组成,通常通过氧化硒的还原来生产。硒粉是灰色或银白色的,可能有淡红色的金属光泽。该产品以100目筛网处理,这表明颗粒较小,直径约为150微米或更小,这确保粉末细小且易于处理。

应用

硒用于 CdSe 的合成,从而通过改变半导体纳米结构的大小和形状来调节量子点太阳能电池的光响应。[1]

象形图

Skull and crossbonesHealth hazard

警示用语:

Danger

危险分类

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Chronic 4 - STOT RE 2

储存分类代码

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 2

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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