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Merck

204307

Sigma-Aldrich

pellets, <5 mm particle size, ≥99.999% trace metals basis

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About This Item

经验公式(希尔记法):
Se
CAS号:
分子量:
78.96
EC號碼:
MDL號碼:
分類程式碼代碼:
12141910
PubChem物質ID:
NACRES:
NA.23

描述

gray

化驗

≥99.999% trace metals basis

形狀

pellets

電阻係數

1.2 μΩ-cm, 0°C

粒徑

<5 mm

bp

684.9 °C (lit.)

mp

217 °C (lit.)

密度

4.81 g/mL at 25 °C (lit.)

SMILES 字串

[Se]

InChI

1S/Se

InChI 密鑰

BUGBHKTXTAQXES-UHFFFAOYSA-N

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一般說明

硒是一种非金属p型半导体,可作为含硫化物铜矿物精炼的副产物进行商业化生产。 它具有良好的光伏和光电导特性,广泛应用于电子学领域,如太阳能电池、测光表和光电池。它还可用于陶瓷、色素、冶金、农业、玻璃和润滑剂等领域。

應用

硒可作为起始原料用于合成硒纳米颗粒。

象形圖

Skull and crossbonesHealth hazard

訊號詞

Danger

危險分類

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

儲存類別代碼

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

水污染物質分類(WGK)

WGK 2

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

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


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Selenium has been reported to have chemopreventive benefits in lung cancer. We conducted a double-blind, placebo-controlled trial to evaluate the incidence of second primary tumors (SPTs) in patients with resected non-small-cell lung cancer (NSCLC) receiving selenium supplementation. Patients with completely
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Although a fairly large number of binary group 15/16 element cations have been reported, no example involving phosphorus in combination with a group 16 element has been synthesized and characterized to date. In this contribution is reported the synthesis and structural characterization
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