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About This Item
Empirical Formula (Hill Notation):
Ar
CAS Number:
Molecular Weight:
39.95
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12142100
EC Number:
231-147-0
MDL number:
Assay:
≥99.998%
vapor density
1.38 (21 °C, vs air)
Quality Level
assay
≥99.998%
impurities
≤3 ppm oxygen, ≤3 ppm water
bp
-185.7 °C (lit.)
mp
-189.2 °C (lit.)
SMILES string
[Ar]
InChI
1S/Ar
InChI key
XKRFYHLGVUSROY-UHFFFAOYSA-N
Packaging
Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.
Compatible with the following:
Compatible with the following:
- Aldrich® lecture-bottle station systems
- Aldrich® lecture-bottle gas regulators
Other Notes
See Technical Information Bulletin AL-151 Gas Regulators: Selection, Installation, and Operation
Legal Information
Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
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signalword
Warning
hcodes
pcodes
Hazard Classifications
Press. Gas Compr. Gas
Storage Class
2A - Gases
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
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Paul R Renne et al.
Science (New York, N.Y.), 339(6120), 684-687 (2013-02-09)
Mass extinctions manifest in Earth's geologic record were turning points in biotic evolution. We present (40)Ar/(39)Ar data that establish synchrony between the Cretaceous-Paleogene boundary and associated mass extinctions with the Chicxulub bolide impact to within 32,000 years. Perturbation of the
Kenta Mizuse et al.
The journal of physical chemistry. A, 117(5), 929-938 (2013-01-22)
We present infrared spectra of nominal water cluster radical cations (H(2)O)(n)(+) (n = 3-8), or to be precise, ion-radical complexes H(+)(H(2)O)(n-1)(OH), with and without an Ar tag. These clusters are closely related to the ionizing radiation-induced processes in water and
Yonas Beyene et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(5), 1584-1591 (2013-01-30)
The Acheulean technological tradition, characterized by a large (>10 cm) flake-based component, represents a significant technological advance over the Oldowan. Although stone tool assemblages attributed to the Acheulean have been reported from as early as circa 1.6-1.75 Ma, the characteristics
