204307
Selenium
pellets, <5 mm particle size, ≥99.999% trace metals basis
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About This Item
Empirical Formula (Hill Notation):
Se
CAS Number:
Molecular Weight:
78.96
EC Number:
MDL number:
UNSPSC Code:
12141910
PubChem Substance ID:
NACRES:
NA.23
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description
gray
Quality Level
Assay
≥99.999% 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
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General description
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.
Application
Selenium has been used as a starting material tosynthesize selenium nanoparticles.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Chronic 4 - STOT RE 2
Storage Class Code
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
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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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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