Rubidium perchlorate

Rubidium perchlorate
Rubidium perchlorate
Are common
Systematic ; name	Rubidium perchlorate
Traditional names	Rubidium perchloride
Chem. formula	RbClO 4
Physical properties
condition	colorless crystals
Molar mass	184.92 g / mol
Density	2.9; 3.014 g / cm³
Thermal properties
T. melt.	606 ° C
Enthalpy of Education	-103.9 kJ / mol
Chemical properties
Solubility in water	0.5 0 ; 0.994 20 ; 18,100 ;
Optical properties
Refractive index	1.4692; 1.4701; 1.4731
Classification
Reg. CAS number
PubChem
Reg. EINECS number
Smiles
Inchi
ChemSpider

Rubidium perchlorate is an inorganic compound, a metal salt of rubidium and perchloric acid with the formula RbClO ₄ , colorless crystals, slightly soluble in water.

Content

Getting

The effect of perchloric acid on a solution of rubidium hydroxide or carbonate :

{\mathsf {RbOH+HClO_{4}\ {\xrightarrow {}}\ RbClO_{4}+H_{2}O}}

{\ displaystyle {\ mathsf {RbOH + HClO_ {4} \ {\ xrightarrow {}} \ RbClO_ {4} + H_ {2} O}}}

{\mathsf {Rb_{2}CO_{3}+2HClO_{4}\ {\xrightarrow {}}\ 2RbClO_{4}+CO_{2}\uparrow +H_{2}O}}

{\ displaystyle {\ mathsf {Rb_ {2} CO_ {3} + 2HClO_ {4} \ {\ xrightarrow {}} \ 2RbClO_ {4} + CO_ {2} \ uparrow + H_ {2} O}}}

Exchange reactions in barium perchlorate :

{\mathsf {Rb_{2}SO_{4}+Ba(ClO_{4})_{2}\ {\xrightarrow {}}\ 2RbClO_{4}+BaSO_{4}\downarrow }}

{\ displaystyle {\ mathsf {Rb_ {2} SO_ {4} + Ba (ClO_ {4}) _ {2} \ {\ xrightarrow {}} \ 2RbClO_ {4} + BaSO_ {4} \ downarrow}}}

Since rubidium perchlorate is slightly soluble, an exchange reaction with sodium perchlorate is possible:

{\mathsf {RbCl+NaClO_{4}\ {\xrightarrow {}}\ RbClO_{4}\downarrow +NaCl}}

{\ displaystyle {\ mathsf {RbCl + NaClO_ {4} \ {\ xrightarrow {}} \ RbClO_ {4} \ downarrow + NaCl}}}

Physical Properties

Rubidium perchlorate forms colorless crystals of rhombic syngony , space group P bnm , cell parameters a = 0.753 nm, b = 0.927 nm, c = 0.581 nm, Z = 4.

At 281 ° С, a phase transition to cubic syngony occurs , the space group F 4 3m , cell parameters a = 0.772 nm, Z = 4.

Slightly soluble in cold water, insoluble in organic solvents.

Chemical Properties

Decomposes on heating:

{\mathsf {RbClO_{4}\ {\xrightarrow {>408^{o}C}}\ RbCl+2O_{2}\uparrow }}

{\ displaystyle {\ mathsf {RbClO_ {4} \ {\ xrightarrow {> 408 ^ {o} C}} \ RbCl + 2O_ {2} \ uparrow}}}

Literature

Chemical Encyclopedia / Editorial Board: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1995. - T. 4. - 639 p. - ISBN 5-82270-092-4 .
Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 2nd ed., rev. - M.-L.: Chemistry, 1966. - T. 1. - 1072 p.
Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
Ripan R., Chetyanu I. Inorganic chemistry. Chemistry of metals. - M .: Mir, 1971. - T. 1. - 561 p.
Plyushchev V.E., Stepin B.D. Chemistry and technology of compounds of lithium, rubidium and cesium. - M .: "Chemistry", 1970. - 408 p.