MilliporeSigma
All Photos(3)

Documents

209643

Sigma-Aldrich

Selenium

pellets, <5 mm, ≥99.99% trace metals basis

Sign Into View Organizational & Contract Pricing

Empirical Formula (Hill Notation):
Se
CAS Number:
Molecular Weight:
78.96
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

description

gray

Quality Level

assay

≥99.99% trace metals basis

form

pellets

resistivity

1.2 μΩ-cm, 0°C

particle size

<5 mm

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
204307209651229865
Selenium pellets, &lt;5&#160;mm, &#8805;99.99% trace metals basis

209643

Selenium

Selenium pellets, &lt;5&#160;mm particle size, &#8805;99.999% trace metals basis

204307

Selenium

Selenium powder, &#8722;100&#160;mesh, &#8805;99.5% trace metals basis

209651

Selenium

Selenium powder, &#8722;100&#160;mesh, 99.99% trace metals basis

229865

Selenium

form

pellets

form

pellets

form

powder

form

powder

mp

217 °C (lit.)

mp

217 °C (lit.)

mp

217 °C (lit.)

mp

217 °C (lit.)

density

4.81 g/mL at 25 °C (lit.)

density

4.81 g/mL at 25 °C (lit.)

density

4.81 g/mL at 25 °C (lit.)

density

4.81 g/mL at 25 °C (lit.)

resistivity

1.2 μΩ-cm, 0°C

resistivity

1.2 μΩ-cm, 0°C

resistivity

1.2 μΩ-cm, 0°C

resistivity

1.2 μΩ-cm, 0°C

bp

684.9 °C (lit.)

bp

684.9 °C (lit.)

bp

684.9 °C (lit.)

bp

684.9 °C (lit.)

pictograms

Skull and crossbonesHealth hazard

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_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 8

1 of 8

Tellurium granular, &#8722;5-+50&#160;mesh, 99.99% trace metals basis

Sigma-Aldrich

263303

Tellurium

Selenium black 99+ for analysis EMSURE&#174;

Supelco

1.07714

Selenium black 99+

Bismuth pieces, 1-12&#160;mm, 99.999% trace metals basis

Sigma-Aldrich

556130

Bismuth

Tellurium pieces, 99.999% trace metals basis

Sigma-Aldrich

204544

Tellurium

3,4-Dimethylphenol 98%

Sigma-Aldrich

D175404

3,4-Dimethylphenol

Sulfur flakes, &#8805;99.99% trace metals basis

Sigma-Aldrich

344621

Sulfur

Sodium selenide 95%

Sigma-Aldrich

796948

Sodium selenide

Selenium dioxide 99.999% trace metals basis

Sigma-Aldrich

204315

Selenium dioxide

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
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
Mark Denham et al.
Stem cells (Dayton, Ohio), 33(6), 1759-1770 (2015-03-11)
The caudal neural plate is a distinct region of the embryo that gives rise to major progenitor lineages of the developing central and peripheral nervous system, including neural crest and floor plate cells. We show that dual inhibition of the
Verónica Uribe et al.
Development (Cambridge, England), 141(21), 4168-4181 (2014-10-23)
Arid3b, a member of the conserved ARID family of transcription factors, is essential for mouse embryonic development but its precise roles are poorly understood. Here, we show that Arid3b is expressed in the myocardium of the tubular heart and in

Articles

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

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service