URANIUM MINERALS - الصفحة 4

no1 · #31 25-11-2005, 13:26

uranium fluoride
• Formula as commonly written: U4F17
• Hill system formula: F17U4
• CAS registry number: [12134-52-0]
• Formula weight: 1275.088
• Class: fluoride
Synonyms
• uranium fluoride
• tetrauranium septadecafluoride
Physical properties
• Colour: black
• Appearance:
• Melting point:
• Boiling point:
• Density:
Element analysis and oxidation numbers
For each compound, and where possible, a formal oxidation number for each element is given, but the usefulness of this number is limited, especially so for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only.
Element % Formal oxidation state Formal electronic configuration
F 25.33
U 74.67
Synthesis
Not available
Isotope pattern
What follows is the calculated isotope pattern for the U4F17 unit with the most intense ion set to 100%.
Formula: U4F17
mass %
1269 0.0
1270 0.0
1271 0.0
1272 2.9
1273 0.0
1274 0.0
1275 100.0

no1 · #32 25-11-2005, 13:26

uranium nitride
• Formula as commonly written: U3N2
• Hill system formula: N2U3
• CAS registry number: [12033-85-1]
• Formula weight: 742.1
• Class: nitride
Synonyms
• uranium nitride
• uranium(II) nitride
• diuranium trinitride
Physical properties
• Colour: dark grey
• Appearance: crystalline solid
• Melting point: 900°C (decomposes to UN)
• Boiling point:
• Density:
Element analysis and oxidation numbers
For each compound, and where possible, a formal oxidation number for each element is given, but the usefulness of this number is limited, especially so for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only.
Element % Formal oxidation state Formal electronic configuration
N 3.77 -3 [He].2s2.2p6
U 96.23 2 [Rn].5f4
Synthesis
Not available
Isotope pattern
What follows is the calculated isotope pattern for the U3N2 unit with the most intense ion set to 100%.
Formula: U3N2
mass %
736 0.0
737 0.0
738 0.0
739 2.2
740 0.0
741 0.0
742 100.0
743 0.7
744 0.0

no1 · #33 25-11-2005, 13:28

uranium oxide
• Formula as commonly written: U3O7
• Hill system formula: O7U3
• CAS registry number: [12037-04-6]
• Formula weight: 826.082
• Class: oxide
Synonyms
• uranium oxide
• triuranium heptoxide
Physical properties
• Colour:
• Appearance:
• Melting point:
• Boiling point:
• Density:
Element analysis and oxidation numbers
For each compound, and where possible, a formal oxidation number for each element is given, but the usefulness of this number is limited, especially so for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only.
Element % Formal oxidation state Formal electronic configuration
O 13.56
U 86.44
Synthesis
Not available
Isotope pattern
What follows is the calculated isotope pattern for the U3O7 unit with the most intense ion set to 100%.
Formula: U3O7
mass %
820 0.0
821 0.0
822 0.0
823 2.2
824 0.0
825 0.0
826 100.0
827 0.3
828 1.4
829 0.0
830 0.0