Przejdź do zawartości
Merck
Wszystkie zdjęcia(2)

Dokumenty

229865

Sigma-Aldrich

Selenium

powder, −100 mesh, 99.99% trace metals basis

Synonim(y):

Se powder, Selenium metal powder

Zaloguj sięWyświetlanie cen organizacyjnych i kontraktowych
Wszystkie zdjęcia(2)

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:
24853754
NACRES:
NA.23

opis

gray

Próba

99.99% trace metals basis

Postać

powder

rezystywność

1.2 μΩ-cm, 0°C

wielkość cząstki

−100 mesh

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

Szukasz podobnych produktów? Odwiedź Przewodnik dotyczący porównywania produktów

Powiązane kategorie

Opis ogólny

Selenium powder is a fine, powdery substance made up of small particles of the element selenium, often produced by the reduction of selenium oxide. Selenium powder is grey or silvered-colored and may have a metallic sheen. This product is passed through a 100-mesh sieve, indicating that the particles are small and have a diameter of around 150 micrometers or less. In addition, this product is highly pure and only has a very small concentration of impurities, making it suitable for research applications, chemical testing, and the production of electronic components.

Zastosowanie

Selenium was a component in the Dulbecco′s Modified Eagle Medium, used for the cell culture of alpha mouse liver (AML)-12 hepatocyte cell line. Se was also employed in a water based synthesis of glutathione-capped cadmium selenide quantum dots (GSH-CdSe QDs). 3Se is used in the synthesis of CdSe, which is consequetively used to modulate the photoresponse of quantum dot solar cells by varying the size and shape of semiconductor nanostructures.

Cechy i korzyści

Our 99.99% pure selenium powder with particle size less than 150 microns is useful in electronics, chemical testing, and research where purity matters most.
✔ Consistent quality
✔ Ultra high purity
✔ Available at scale: bulk and pilot scale
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

Certyfikaty analizy (CoA)

Poszukaj Certyfikaty analizy (CoA), wpisując numer partii/serii produktów. Numery serii i partii można znaleźć na etykiecie produktu po słowach „seria” lub „partia”.

Masz już ten produkt?

Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

Klienci oglądali również te produkty

Slide 1 of 9

1 of 9

Selenium lump, 3 mm max. lump size, weight 20 g, high purity 99.999%

GF10763456

Selenium

Tellurium powder, −30 mesh, 99.997% trace metals basis

Sigma-Aldrich

264865

Tellurium

Selenium black 99+ for analysis EMSURE®

Supelco

1.07714

Selenium black 99+

Selenium-77Se ≥99.2 atom % (77Se)

Sigma-Aldrich

900794

Selenium-77Se

Trioctylphosphine 97%

Sigma-Aldrich

718165

Trioctylphosphine

Selenium lump, 3 mm max. lump size, weight 50 g, high purity 99.999%

GF45431647

Selenium

Selenium dioxide ≥99.9% trace metals basis

Sigma-Aldrich

200107

Selenium dioxide

Sodium selenide 95%

Sigma-Aldrich

796948

Sodium selenide

1-Octadecene technical grade, 90%

Sigma-Aldrich

O806

1-Octadecene

István Robel et al.
Journal of the American Chemical Society, 128(7), 2385-2393 (2006-02-16)
By using bifunctional surface modifiers (SH-R-COOH), CdSe quantum dots (QDs) have been assembled onto mesoscopic TiO(2) films. Upon visible light excitation, CdSe QDs inject electrons into TiO(2) nanocrystallites. Femtosecond transient absorption as well as emission quenching experiments confirm the injection
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
Songtao Li et al.
Biochimica et biophysica acta, 1841(1), 22-33 (2013-09-24)
Saturated fatty acids (SFAs) induce hepatocyte cell death, wherein oxidative stress is mechanistically involved. Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) is a master transcriptional regulator of cellular antioxidant defense enzymes. Therefore, Nrf2 activation is regarded as an effective strategy against
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
Wyświetl wszystkie powiązane dokumenty

Produkty

Solvothermal Synthesis of Nanoparticles

Solvothermal synthesis of nanoparticles: applications from nanocircuits and nano-optical circuits to nanomagnetics and biotech.

Solwotermalna synteza nanocząstek

Solwotermalna synteza nanocząstek: zastosowania od nanoobwodów i obwodów nanooptycznych do nanomagnetyki i biotechnologii.

Lanthanide Ions for Solar Cells

Lanthanide ions in spectral conversion enhance solar cell efficiency via photon conversion.

Nasz zespół naukowców ma doświadczenie we wszystkich obszarach badań, w tym w naukach przyrodniczych, materiałoznawstwie, syntezie chemicznej, chromatografii, analityce i wielu innych dziedzinach.

Skontaktuj się z zespołem ds. pomocy technicznej