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229865

Selenium

powder, −100 mesh, 99.99% trace metals basis

Synonym(s):

Se powder, Selenium metal powder

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About This Item

Empirical Formula (Hill Notation):
Se
CAS Number:
7782-49-2
Molecular Weight:
78.96
NACRES:
NA.23
PubChem Substance ID:
24853754
UNSPSC Code:
12141910
EC Number:
231-957-4
MDL number:
MFCD00134090
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description

gray

Quality Level

100

assay

99.99% trace metals basis

form

powder

composition

Se

reaction suitability

core: selenium

resistivity

1.2 μΩ-cm, 0°C

particle size

−100 mesh

bp

684.9 °C (lit.)

mp

217 °C (lit.)

density

4.81 g/mL at 25 °C (lit.)

SMILES string

[Se]

InChI

1S/Se

InChI key

BUGBHKTXTAQXES-UHFFFAOYSA-N

General description

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.

Application

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.

Features and Benefits

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

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pictograms

Skull and crossbonesHealth hazard
GHS06,GHS08

signalword

Danger

Hazard Classifications

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

Storage Class

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

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
MKDB4066
MKCZ7293
MKCX1685
MKCX6950
MKCW6141

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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
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
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
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