Thallium Bromide (I)

Thallium bromide
Thallium bromide
Are common
Systematic ; name	Thallium bromide
Traditional names	Thallium bromide
Chem. formula	Tlbr
Rat formula	Tlbr
Physical properties
condition	light yellow crystals
Molar mass	284.28 g / mol
Density	7.557 g / cm³
Thermal properties
T. melt.	460 ° C
T. bale.	815; 819; 824 ° C
Like heat resistant.	52.5 J / (mol · K)
Enthalpy of Education	-172.7 kJ / mol
Chemical properties
Solubility in water	0.05 25 ; 0.25 68 g / 100 ml
Classification
Reg. CAS number	7789-40-4
PubChem
Reg. EINECS number
Smiles
Inchi
ChemSpider

Thallium bromide is a binary inorganic compound, a salt of a metal of thallium and hydrobromic acid with the formula TlBr, light yellow crystals, poorly soluble in water.

Content

Getting

Direct interaction of elements in the presence of alcohol:

{\mathsf {2Tl+Br_{2}\ {\xrightarrow {}}\ 2TlBr}}

{\ displaystyle {\ mathsf {2Tl + Br_ {2} \ {\ xrightarrow {}} \ 2TlBr}}}

The action of hydrobromic acid on thallium oxide , hydroxide or carbonate :

{\mathsf {Tl_{2}O+2HBr\ {\xrightarrow {}}\ 2TlBr\downarrow +H_{2}O}}

{\ displaystyle {\ mathsf {Tl_ {2} O + 2HBr \ {\ xrightarrow {}} \ 2TlBr \ downarrow + H_ {2} O}}}

{\mathsf {TlOH+HBr\ {\xrightarrow {}}\ TlBr\downarrow +H_{2}O}}

{\ displaystyle {\ mathsf {TlOH + HBr \ {\ xrightarrow {}} \ TlBr \ downarrow + H_ {2} O}}}

{\mathsf {Tl_{2}CO_{3}+2HBr\ {\xrightarrow {}}\ 2TlBr\downarrow +CO_{2}\uparrow +H_{2}O}}

{\ displaystyle {\ mathsf {Tl_ {2} CO_ {3} + 2HBr \ {\ xrightarrow {}} \ 2TlBr \ downarrow + CO_ {2} \ uparrow + H_ {2} O}}}

Exchange reactions:

{\mathsf {TlNO_{3}+NaBr\ {\xrightarrow {}}\ TlBr\downarrow +NaNO_{3}}}

{\ displaystyle {\ mathsf {TlNO_ {3} + NaBr \ {\ xrightarrow {}} \ TlBr \ downarrow + NaNO_ {3}}}}

Physical Properties

Thallium bromide forms light yellow crystals of cubic syngony , space group P m3m , cell parameters a = 0.3976 nm, Z = 1.

Slightly soluble in water, soluble in alcohol and ether .

Chemical Properties

Photosensitive, reversibly decomposes under the influence of light:

{\mathsf {2TlBr\ {\stackrel {\xrightarrow {h\nu }}{\xleftarrow[{\ \ \ }]{}}}\ 2TlBr_{1-x}+xBr_{2}}}

{\ displaystyle {\ mathsf {2TlBr \ {\ stackrel {\ xrightarrow {h \ nu}} {\ xleftarrow [{\ \ \}] {}}} \ 2TlBr_ {1-x} + xBr_ {2}}}}

Decomposed by concentrated sulfuric acid:

{\mathsf {TlBr+H_{2}SO_{4}\ {\xrightarrow {}}\ TlHSO_{4}+HBr\uparrow }}

{\ displaystyle {\ mathsf {TlBr + H_ {2} SO_ {4} \ {\ xrightarrow {}} \ TlHSO_ {4} + HBr \ uparrow}}}

It is restored by heating with hydrogen :

{\mathsf {2TlBr+H_{2}\ {\xrightarrow {T}}\ 2Tl+2HBr}}

{\ displaystyle {\ mathsf {2TlBr + H_ {2} \ {\ xrightarrow {T}} \ 2Tl + 2HBr}}}

Application

Thallium bromide is used to separate thallium from industrial waste.
Ultrapure thallium bromide is used as a short-wave radiation detector.

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.

Thallium bromide
Are common
Systematic name	Thallium bromide
Traditional names	Thallium bromide
Chem. formula	Tlbr
Rat formula	Tlbr
Physical properties
condition	light yellow crystals
Molar mass	284.28 g / mol
Density	7.557 g / cm³
Thermal properties
T. melt.	460 ° C
T. bale.	815; 819; 824 ° C
Like heat resistant.	52.5 J / (mol · K)
Enthalpy of Education	-172.7 kJ / mol
Chemical properties
Solubility in water	0.05 ²⁵ ; 0.25 ⁶⁸ g / 100 ml
Classification
Reg. CAS number	7789-40-4
PubChem
Reg. EINECS number
Smiles
Inchi
ChemSpider