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204307

Sigma-Aldrich

Selen

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

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About This Item

Empirische Formel (Hill-System):
Se
CAS-Nummer:
7782-49-2
Molekulargewicht:
78.96
EG-Nummer:
231-957-4
MDL-Nummer:
MFCD00134090
UNSPSC-Code:
12141910
PubChem Substanz-ID:
24852251
NACRES:
NA.23

Beschreibung

gray

Qualitätsniveau

100

Assay

≥99.999% trace metals basis

Form

pellets

Widerstandsfähigkeit

1.2 μΩ-cm, 0°C

Partikelgröße

<5 mm

bp

684.9 °C (lit.)

mp (Schmelzpunkt)

217 °C (lit.)

Dichte

4.81 g/mL at 25 °C (lit.)

SMILES String

[Se]

InChI

1S/Se

InChIKey

BUGBHKTXTAQXES-UHFFFAOYSA-N

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Allgemeine Beschreibung

Selenium is a non-metallic p-type semiconductor and is commercially produced as a by-product in refining sulfide-bearing copper minerals. It has good photovoltaic and photoconductive properties and is extensively used in the electronics such as solar cells, light meters, and, photocells. It also finds application in the field of ceramics, pigments, metallurgy, agriculture, glasses, and lubricants.

Anwendung

Selenium has been used as a starting material tosynthesize selenium nanoparticles.

Piktogramme

Skull and crossbonesHealth hazard
GHS06,GHS08

Signalwort

Danger

Gefahreneinstufungen

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

Lagerklassenschlüssel

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

WGK

WGK 2

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

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

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
MKCN2409
MKCJ9981
MKCF9269
MKBZ8630V
MKBV0293V

Die passende Version wird nicht angezeigt?

Wenn Sie eine bestimmte Version benötigen, können Sie anhand der Lot- oder Chargennummer nach einem spezifischen Zertifikat suchen.

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Daniel D Karp et al.
Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 31(33), 4179-4187 (2013-09-05)
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
Waleed Alhazzani et al.
Critical care medicine, 41(6), 1555-1564 (2013-04-17)
Patients with sepsis syndrome commonly have low serum selenium levels. Several randomized controlled trials have examined the efficacy of selenium supplementation on mortality in patients with sepsis. To determine the efficacy and safety of high-dose selenium supplementation compared to placebo
Claire M Weekley et al.
Nutrients, 5(5), 1734-1756 (2013-05-24)
Determining the speciation of selenium in vivo is crucial to understanding the biological activity of this essential element, which is a popular dietary supplement due to its anti-cancer properties. Hyphenated techniques that combine separation and detection methods are traditionally and
Kai-Oliver Feldmann et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 21(27), 9697-9712 (2015-05-12)
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
Brian D Laird et al.
The Journal of nutrition, 143(6), 923-930 (2013-04-26)
Elevated concentrations of mercury (Hg) are commonly found in the traditional foods, including fish and marine mammals, of Inuit living in Canada's Arctic. As a result, Inuit often have higher dietary Hg intake and elevated Hg blood concentrations. However, these
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