Plutonium (III) iodide

Plutonium iodide
Plutonium iodide
Are common
Systematic ; name	Plutonium (III) iodide
Traditional names	Plutonium iodide
Chem. formula	PuI 3
Physical properties
condition	green crystals
Molar mass	624.71 g / mol
Density	6.92 g / cm³
Thermal properties
T. melt.	770; 777; 780 ° C
Education enthalpy	-541.8; 543.9 kJ / mol
Melting enthalpy	50 kJ / mol
Classification
Reg. CAS number	13813-46-2

Plutonium (III) iodide is an inorganic compound, plutonium salt and hydroiodic acid with the formula PuI ₃ , green crystals.

Content

Getting

In an inert or vacuum medium, the transmission of pure hydrogen iodide through heated plutonium:

{\mathsf {2Pu+6HI\ {\xrightarrow {450^{o}C}}\ 2PuI_{3}+3H_{2}\uparrow }}

{\ displaystyle {\ mathsf {2Pu + 6HI \ {\ xrightarrow {450 ^ {o} C}} \ 2PuI_ {3} + 3H_ {2} \ uparrow}}}

Heating of a mixture of metallic plutonium and mercury iodide in a vacuumized ampoule followed by distilling off mercury:

{\mathsf {2Pu+3HgI_{2}\ {\xrightarrow {500^{o}C}}\ 2PuI_{3}+3Hg}}

{\ displaystyle {\ mathsf {2Pu + 3HgI_ {2} \ {\ xrightarrow {500 ^ {o} C}} \ 2PuI_ {3} + 3Hg}}}

Plutonium dioxide and aluminum iodide reaction:

{\mathsf {6PuO_{2}+8AlI_{3}\ {\xrightarrow {}}\ 6PuI_{3}+4Al_{2}O_{3}+3I_{2}}}

{\ displaystyle {\ mathsf {6PuO_ {2} + 8AlI_ {3} \ {\ xrightarrow {}} \ 6PuI_ {3} + 4Al_ {2} O_ {3} + 3I_ {2}}}

Physical Properties

Plutonium (III) iodide forms very hygroscopic green crystals of the orthorhombic system , space group C cmm , cell parameters a = 0.433 nm, b = 1.355 nm, c = 0.996 nm, Z = 4.

Sensitive to even insignificant amounts of oxygen and moisture. Store in sealed ampoules in an inert atmosphere.

Chemical Properties

Decomposed by traces of water:

{\mathsf {PuI_{3}+H_{2}O\ {\xrightarrow {\ }}PuOI+2HI}}

{\ displaystyle {\ mathsf {PuI_ {3} + H_ {2} O \ {\ xrightarrow {\}} PuOI + 2HI}}}

Literature

Chemical Encyclopedia / Redkol .: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1992. - Vol. 3. - 639 p. - ISBN 5-82270-039-8 .
Chemist Handbook / Redkol .: Nikolsky B.P. et al. - 2nd ed., Rev. - M.-L.: Chemistry, 1966. - T. 1. - 1072 p.
Chemist Handbook / Redkol .: Nikolsky B.P. et al. - 3rd ed., Rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
Manual on inorganic synthesis: B 6 tons / Ed. Brower G. .. - M .: Mir, 1985. - T. 4. - 447 p.
Vdovenko V.M. Modern radiochemistry. - M: Atomizdat , 1969. - 544 p.
CRC Handbook of Chemistry and Physics . - 89th edition. - Taylor and Francis Group, LLC, 2008-2009.