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204307

Sigma-Aldrich

Selenium

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

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Wszystkie zdjęcia(3)

About This Item

Wzór empiryczny (zapis Hilla):
Se
Numer CAS:
7782-49-2
Masa cząsteczkowa:
78.96
Numer WE:
231-957-4
Numer MDL:
MFCD00134090
Kod UNSPSC:
12141910
Identyfikator substancji w PubChem:
24852251
NACRES:
NA.23

opis

gray

Poziom jakości

100

Próba

≥99.999% trace metals basis

Postać

pellets

rezystywność

1.2 μΩ-cm, 0°C

wielkość cząstki

<5 mm

tw

684.9 °C (lit.)

mp

217 °C (lit.)

gęstość

4.81 g/mL at 25 °C (lit.)

ciąg SMILES

[Se]

InChI

1S/Se

Klucz InChI

BUGBHKTXTAQXES-UHFFFAOYSA-N

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Opis ogólny

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.

Zastosowanie

Selenium has been used as a starting material tosynthesize selenium nanoparticles.
This page may contain text that has been machine translated.

Piktogramy

Skull and crossbonesHealth hazard
GHS06,GHS08

Hasło ostrzegawcze

Danger

Zwroty wskazujące rodzaj zagrożenia

H301 + H331,H373,H413

Zwroty wskazujące środki ostrożności

P260 - P264 - P273 - P301 + P310 - P304 + P340 + P311 - P314

Klasyfikacja zagrożeń

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

Kod klasy składowania

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

Klasa zagrożenia wodnego (WGK)

WGK 2

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable

Środki ochrony indywidualnej

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

Wybierz jedną z najnowszych wersji:

Certyfikaty analizy (CoA)

Lot/Batch Number
MKCN2409
MKCJ9981
MKCF9269
MKBZ8630V
MKBV0293V

Nie widzisz odpowiedniej wersji?

Jeśli potrzebujesz konkretnej wersji, możesz wyszukać konkretny certyfikat według numeru partii lub serii.

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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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