General Rhenium Information
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Chemical Formula: |
Re |
Composition: |
Molecular Weight = 186.21 gm |
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Rhenium 100.00 % Re |
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______ |
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100.00 % |
Empirical Formula: |
Re |
Environment: |
Occurs with other platinum group metals (Pt, Re, Os, Ir). Never found as a pure element, it is always alloyed with varing percentages of PGMS. |
IMA Status: |
Not Approved IMA 1976 |
Locality: |
Transbaikal, Russia. Link to MinDat.org Location Data. |
Name Origin: |
Named for the Rhine River in Germany in 1925. |
Synonym: |
ICSD 40355 |
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PDF 5-702 |
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Rhenium Image |
Images:
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Rhenium Crystallography
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Axial Ratios: |
a:c = 1:1.61521 |
Cell Dimensions: |
a = 2.76, c = 4.458, Z = 2; V = 29.41 Den(Calc)= 21.03 |
Crystal System: |
Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 63/mmc |
X Ray Diffraction: |
By Intensity(I/Io): 2.105(1), 2.226(0.34), 2.388(0.32), |
Crystal Structure:
Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above
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Wyckoff R W G , Crystal Structures , 1 (1963) p.7-83, Second edition. Interscience Publishers, New York, New York, Hexagonal closest packed, hcp, structure
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Physical Properties of Rhenium
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Color: |
Black. |
Density: |
21.03 |
Diaphaniety: |
Opaque |
Luster: |
Metallic |
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Calculated Properties of Rhenium
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Electron Density: |
relectron=16.9 gm/cc note: rRhenium =21.0 gm/cc. |
Fermion Index |
Fermion Index = 0 Boson Index = 1 |
Photoelectric: |
PERhenium =1,406.57 barns/electron U=PERhenium x relectron=23828.41 barns/cc. |
Radioactivity: |
GRapi = 39,126.96 (Gamma Ray American Petroleum Institute Units)
Rhenium is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.
Estimated Maximum U.S. Postal Shipping Size
(10 mRem/hr limit, Unshielded 10 cm box)
777.38 ±194.35 grams of pure Rhenium .
Estimated Radioactivity from Rhenium - weak
Specimen Size Weight/Volume (Sphere) * |
Calculated Activity Bequerols (Bq) |
Calculated Activity Curies (Ci) |
Estimated Activity GR(api) |
Estimated Exposure (mRem**)/hr If Held in Hand For One Hour |
| 1000 gm / 4.49 cm |
1,020,000 |
2.76E-05 |
39,126.96 |
12.86 |
| 100 gm / 2.09 cm |
102,000 |
2.76E-06 |
3,912.70 |
1.29 |
| 10 gm / 9.68 mm |
10,200 |
2.76E-07 |
391.27 |
0.13 |
| 1 gm / 4.49 mm |
1,020 |
2.76E-08 |
39.13 |
0.01 |
| 0.1 gm / 2.09 mm |
102 |
2.76E-09 |
3.91 |
0.00 |
| 0.01 gm / 0.97 mm |
10 |
2.76E-10 |
0.39 |
0.00 |
| 0.001 gm / 0.45 mm |
1 |
2.76E-11 |
0.04 |
0.00 |
Weight of pure Rhenium in grams (gm) and Calculated Diameter of a Sphere with a Density of 21.03 gm/cc.*
Goverment Estimate of Average Annual Exposure (
360 mRem)
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Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
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Rhenium Classification
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Dana Class: |
1.0.0.0 (1)Native Elements |
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(1.0)Without Dana Classification Numbers |
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(Platinum Group) |
Strunz Class: |
I/A.13-10 I - Elements |
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I/A - Metallic and intermetallic compounds, Carbides, Nitrides, Phosphides and Silicides |
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I/A.13 - Osmium series |
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I/A.13-10 Rhenium Re P 63/mmc 6/m 2/m 2/m |
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I/A.13-15 Hexaferrum! (Fe,Os,Ru,Ir) P 63/mmc 6/m 2/m 2/m |
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I/A.13-20 Osmium (Os,Ir) P 63/mmc 6/m 2/m 2/m |
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I/A.13-30 Ruthenium (Ru,Ir,Os) P 63/mmc 6/m 2/m 2/m |
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I/A.13-40 Rutheniridosmine (Ir,Os,Ru) P 63/mmc 6/m 2/m 2/m |
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Other Rhenium Information
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References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Rhenium :
1 -Am. Min. Crystal Structure Database
2 - Applied Mineralogy
3 -Athena
4 - EUROmin Project
5 -Google Images
6 -Google Scholar
7 -Handbook of Mineralogy (UofA)
8 -MinDAT
9 -MinMax(Deutsch)
10 -MinMax(English)
11 -Mineralienatlas (Deutsch)
12 -QUT Mineral Atlas
13 - WWW-MINCRYST
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Rhenium
Re
Dana No: Unknown Strunz No: I/A.13-10
Locality:
Notes:
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