Antimony (III) sulfate

Structural formula
${\displaystyle \mathrm {\ {\Biggl [}} }$ ${\displaystyle \mathrm {\ \!\ {\Biggr ]}_{3}} }$
General
Surname	Antimony (III) sulfate
other names	Antimony (III) sulfate Diantimony trisulfate
Molecular formula	Sb 2 (SO 4 ) 3
Brief description	Colorless, hygroscopic, needle-shaped crystals
External identifiers / databases
CAS number 7446-32-4 EC number 231-207-6 ECHA InfoCard 100.028.370 PubChem 24010 Wikidata Q578446
properties
Molar mass	531.71 g mol −1
Physical state	firmly
density	3.62 g cm −3
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 302-332-411 P: 273
Thermodynamic properties
ΔH f 0	−2402.5 kJ mol −1
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Sulfate antimony (III) is the antimony - salt of sulfuric acid .

Extraction and presentation

Antimony (III) sulfate can be produced by reacting antimony (III) oxide with hot, concentrated sulfuric acid.

${\displaystyle {\ce {Sb2O3 + 3H2SO4 -> Sb2(SO4)3 + 3H2O}}}$

Antimony (III) oxide and sulfuric acid react to form antimony (III) sulphate and water

Reactions

The antimony (III) oxide can be re-produced from (basic) antimony (III) sulfate by boiling it with strongly diluted sodium carbonate solution:

${\displaystyle \mathrm {Sb_{2}(SO_{4})_{3}+3\ Na_{2}CO_{3}+3\ H_{2}O\longrightarrow Sb_{2}O_{3}+3\ Na_{2}SO_{4}+3\ H_{2}CO_{3}} }$

Antimony (III) sulfate reacts with sodium carbonate and water to form antimony (III) oxide, sodium sulfate and carbonic acid

safety instructions

Antimony (III) sulfate, like many other antimony compounds, should be classified as carcinogenic (Category 2) and germ cell mutagenic (Category 3B) according to the recommendation of the MAK Commission .

proof

The antimony cations of the antimony (III) sulfate can be detected with the Marsh sample .

The sulfate anions can be detected by means of the sulfate detection with an aqueous solution of barium chloride .

Individual evidence

1. ↑ ^{a b c} Georg Brauer: Handbook of preparative inorganic chemistry. 1963.
2. ↑ ^{a b c d} entry to antimony (III) sulfate in the GESTIS database of IFA , retrieved on February 1, 2016(JavaScript required) .
3. ↑ M. Binnewies, E. Milke: Thermochemical Data of Elements and Compunds . 2nd Edition. Wiley-VCH, Weinheim 2002, ISBN 3-527-30524-6 , pp. 782 .
4. ^ Concise dictionary of chemistry . Retrieved January 23, 2011.

literature

• Georg Brauer: Handbook of preparative inorganic chemistry. 1963.