URANIUM(VI) FLUORIDE - (7783-81-5)

परिचय

नाम: uranium(VI) fluoride; uranium hexafluoride
* IUPAC
सीएएस संख्या: 7783-81-5
रासायनिक सूत्र: UF6
अणु भार: 352.0193292 g
पदार्थ की अवस्था: colorless solid
मास प्रतिशत: U 67.618 %; F 32.381 % 

वर्गीकरण

उपयोग करता है / समारोह

• "Fluorine is used in the nuclear industries of many countries to make uranium hexafluoride for enrichment of uranium in the fissile 235U isotope...Repeated diffusion of UF6 (g) through porous plugs (or centrifugation of the vapor) concentrates 235UF6 relative to 238UF6, since the speed of diffusion varies inversely as the square root of the molecular mass. This enrichment is not needed for fueling power reactors with good neutron economy, such as the Canadian CANDU system. Gaseous diffusion plants for UF6 are expensive, not least because UF6 is itself an aggressive fluorinating agent and thus must be contained in special fluorine-resistant materials." 1

भौतिक गुण



घनत्व (g/cm3):
5.09 at room temperature/pressure 2
* - 1 atm pressure

घुलनशीलता

गुणात्मक:

संबंध

संबंध: ionic
Ionic Character: 69.09 %

ऊष्मारसायन

ΔHf° (s): -505 kcal/mol 3 = -2,112.92 kJ/mol
ΔHf° (s): -525.10 kcal/mol = -2197.0 kJ/mol 4
ΔHf° (g): -513.24 kcal/mol = -2147.4 kJ/mol 4
S° (s): 54.4 cal/(mol•K) 5 = 227.61 J/(mol•K)
S° (s): 54.40 cal/(mol•K) = 227.6 J/(mol•K) 6
S° (g): 90.32 cal/(mol•K) = 377.9 J/(mol•K) 6
ΔGf° (s): -485 kcal/mol 7 = -2,029.24 kJ/mol
ΔGf° (s): -494.38 kcal/mol = -2068.5 kJ/mol 8
ΔGf° (g): -493.24 kcal/mol = -2063.7 kJ/mol 8

प्रतिक्रियाओं

अधिक जानकारी के लिए

सूत्रों का कहना है

(1) - Swaddle, T.W. Inorganic Chemistry; Academic Press: San Diego, 1997; pp 230-231.
(2) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 4-93.
(3) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(4) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 5-16.
(5) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(6) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 5-16.
(7) - Dean, John A. Lange's Handbook of Chemistry, 12th ed.; McGraw-Hill Book Company: New York, NY, 1979; p 9:4-9:94.
(8) - Lide, David R. CRC Handbook of Chemistry and Physics, 83rd ed.; CRC Press: Boca Raton, FL, 2002; p 5-16.
(9) - Swaddle, T.W. Inorganic Chemistry; Academic Press: San Diego, 1997; p 230.