Tin (IV) sulfate

Structural formula
No drawing available
General
Surname	Tin (IV) sulfate
Molecular formula	Sn (SO 4 ) 2
Brief description	colorless solid (dihydrate)
External identifiers / databases
CAS number 10031-62-6 (anhydrate) 19307-28-9 (dihydrate) PubChem 160910 Wikidata Q4445810
properties
Molar mass	310.84 g mol −1
Physical state	firmly
density	4.5 g cm −3
solubility	Easily soluble in dilute sulfuric acid Decomposes in water
safety instructions
GHS hazard labeling no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Tin (IV) sulfate is an inorganic chemical compound of tin from the group of sulfates , which is present as a dihydrate .

Extraction and presentation

Tin (IV) sulfate can be obtained by reacting α- stannic acid with sulfuric acid. When the solution is evaporated, white dihydrate crystals separate out, which have a needle-shaped, tabular or prismatic appearance with increasing acid concentration.

You can also do this by dissolving tin (IV) oxide with sulfuric acid

${\displaystyle \mathrm {SnO_{2}+2\ H_{2}SO_{4}\longrightarrow Sn(SO_{4})_{2}+2\ H_{2}O} }$

or by reacting tin (II) sulfate with sulfuric acid at 130 to 200 ° C.

${\displaystyle \mathrm {SnSO_{4}+2\ H_{2}SO_{4}\longrightarrow Sn(SO_{4})_{2}+2\ H_{2}O+SO_{2}} }$

The direct reaction of tin with hot, concentrated sulfuric acid also produces tin (IV) sulfate.

${\displaystyle \mathrm {Sn+4\ H_{2}SO_{4}\longrightarrow Sn(SO_{4})_{2}+2\ SO_{2}+4\ H_{2}O} }$

properties

As a dihydrate, tin (IV) sulphate is a colorless, very hygroscopic , crystalline substance that decomposes hydrolytically on contact with water with the separation of α-stannic acid. The compound has a hexagonal crystal structure .

use

Tin (IV) sulfate is used as a solution in sulfuric acid to determine nitrates .

Individual evidence

1. ↑ ^{a b c d e f g} Georg Brauer (Hrsg.): Handbook of Preparative Inorganic Chemistry . 3., reworked. Edition. tape II . Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 767 .
2. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
3. ↑ External identifiers of or database links for tin (IV) sulfate dihydrate : CAS number: 19307-28-9, EC number: 242-952-1, ECHA InfoCard: 100.039.032 , PubChem : 17775182 , Wikidata : Q64781957 .
4. ^ Richard C. Ropp: Encyclopedia of the Alkaline Earth Compounds . Newnes, 2012, ISBN 0-444-59553-8 , pp. 446 ( limited preview in Google Book search).
5. ^ Ronald Rich: Inorganic Reactions in Water . Springer, 2007, ISBN 978-3-540-73962-3 , pp. 352 ( limited preview in Google Book search).
6. ↑ Anil Kumar De: A Text Book of Inorganic Chemistry . New Age International, 2007, ISBN 81-224-1384-6 , pp. 375 ( limited preview in Google Book search).
7. ↑ R. Blachnik: Pocket book for chemists and physicists Volume 3: Elements, inorganic compounds and materials, minerals . Springer-Verlag, 2013, ISBN 978-3-642-58842-6 , pp. 742 ( limited preview in Google Book search).
8. ↑ Data sheet Tin (IV) sulfate - sulfuric acid solution from Sigma-Aldrich , accessed on May 21, 2017 ( PDF ).