Sulfur tetrachloride

Sulfur tetrachloride
Sulfur tetrachloride
General
Systematic ; name	Sulfur tetrachloride
Traditional names	Sulfur Chloride
Chem. formula	SCl 4
Physical properties
condition	white crystals at -35 ° С, above -31 ° С - dark brown liquid
Molar mass	173.88 g / mol
Thermal properties
T. melt.	-31; -30 ° C
T. bale.	decomp. -15 ° C
Classification
Reg. CAS number	13451-08-6
PubChem
Smiles
Inchi

Sulfur tetrachloride is an inorganic compound of sulfur and chlorine with the formula SCl ₄ , colorless or pale yellow crystals at -35 ° C, above -31 ° C - a dark brown liquid, decomposes at temperatures above -15 ° C.

Content

1 Receiving
2 Physical properties
3 Chemical properties
4 Literature

Getting

The effect of chlorine on sulfur dichloride at low temperature:

{\mathsf {SCl_{2}+Cl_{2}\ {\xrightarrow {-80^{o}C}}\ SCl_{4}}}

{\ displaystyle {\ mathsf {SCl_ {2} + Cl_ {2} \ {\ xrightarrow {-80 ^ {o} C}} \ SCl_ {4}}}}

Physical Properties

Sulfur tetrachloride - colorless or pale yellow crystals at −35 ° C, above −31 ° C - a dark brown liquid, decomposes at temperatures above −15 ° C.

The structure can be considered as salt ${\ce {SCl3+Cl-}}$ ${\ displaystyle {\ ce {SCl3 + Cl-}}}$ .

Chemical Properties

Decomposes on heating:

{\mathsf {SCl_{4}\ {\xrightarrow {-15^{o}C}}\ SCl_{2}+Cl_{2}}}

{\ displaystyle {\ mathsf {SCl_ {4} \ {\ xrightarrow {-15 ^ {o} C}} \ SCl_ {2} + Cl_ {2}}}}

Reacts with moisture from the air:

{\mathsf {SCl_{4}+H_{2}O\ {\xrightarrow {}}\ SOCl_{2}+2HCl}}

{\ displaystyle {\ mathsf {SCl_ {4} + H_ {2} O \ {\ xrightarrow {}} \ SOCl_ {2} + 2HCl}}}

Reacts with water:

{\mathsf {SCl_{4}+2H_{2}O\ {\xrightarrow {}}\ SO_{2}+4HCl}}

{\ displaystyle {\ mathsf {SCl_ {4} + 2H_ {2} O \ {\ xrightarrow {}} \ SO_ {2} + 4HCl}}}

Reacts with nitric acid:

{\mathsf {SCl_{4}+2HNO_{3}+2H_{2}O\ {\xrightarrow {}}\ H_{2}SO_{4}+2NO_{2}\uparrow +4HCl}}

{\ displaystyle {\ mathsf {SCl_ {4} + 2HNO_ {3} + 2H_ {2} O \ {\ xrightarrow {}} \ H_ {2} SO_ {4} + 2NO_ {2} \ uparrow + 4HCl}}}

Reacts with alkalis:

{\mathsf {SCl_{4}+6NaOH\ {\xrightarrow {}}\ Na_{2}SO_{3}+4NaCl+3H_{2}O}}

{\ displaystyle {\ mathsf {SCl_ {4} + 6NaOH \ {\ xrightarrow {}} \ Na_ {2} SO_ {3} + 4NaCl + 3H_ {2} O}}}

Literature

Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
Chemical Encyclopedia / Editorial Board: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1995. - T. 4. - 639 p. - ISBN 5-82270-092-4 .
Lidin R. A. , Andreeva L. L. , Molochko V. A. Chemical properties of inorganic substances: Textbook. manual for universities - 3rd ed., Rev. - M .: Chemistry , 2000. - 480 p. - ISBN 5-7245-1163-0
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