Key Documents

View All Documentation

229865

Selenium

Name: Selenium
Brand: ALDRICH

powder, −100 mesh, 99.99% trace metals basis

Synonym(s):

Se powder, Selenium metal powder

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):

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

Technical Service

Need help? Our team of experienced scientists is here for you.

Let Us Assist

Properties

description

gray

Quality Level

100

assay

99.99% trace metals basis

form

powder

composition

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

Description

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

Still not finding the right product?

Explore all of our products under Selenium

pictograms

GHS06,GHS08

signalword

Danger

hcodes

H301 + H331,H373,H413

pcodes

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

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

Regulatory Information

危险化学品

This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Articles

纳米颗粒的溶剂热合成

纳米颗粒的溶剂热合成：从纳米电路、纳米光学电路到纳米磁学和生物技术应用。

Solvothermal Synthesis of Nanoparticles

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

Lanthanide Ions for Solar Cells

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

Quantum dot solar cells. harvesting light energy with CdSe nanocrystals molecularly linked to mesoscopic TiO2 films.

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

Randomized, double-blind, placebo-controlled, phase III chemoprevention trial of selenium supplementation in patients with resected stage I non-small-cell lung cancer: ECOG 5597.

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

The effect of selenium therapy on mortality in patients with sepsis syndrome: a systematic review and meta-analysis of randomized controlled trials.

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

View All Related Papers

Global Trade Item Number

SKU	GTIN
229865-5G	04061838782151
229865-100G	04061838782137
229865-20G	04061838782144