Potassium hexahydroxoantimonate (V)

Structural formula
General
Surname	Potassium hexahydroxoantimonate (V)
other names	Potassium antimonate
Molecular formula	K [Sb (OH) 6 ]
Brief description	odorless, white solid
External identifiers / databases
EC number	235-387-7
ECHA InfoCard	100.032.158
PubChem	25524
ChemSpider	11311229
Wikidata	Q3618715
properties
Molar mass	262.90 g mol −1
Physical state	firmly
solubility	soluble in water (28 g l −1 at 20 ° C)
safety instructions
H and P phrases	H: 302-332-411
	P: 273
Toxicological data	> 2,000 mg l −1 (EC5 , water flea , 16 hours ) ; > 2,000 mg l −1 (IC5 , algae , 8 days ) ; > 353 mg l −1 ( EC 50 , bacteria , 1 day ) ;
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Kaliumhexahydroxoantimonat , K [Sb (OH) ₆ ] is the potassium - salt of antimonic acid .

properties

Potassium hexahydroxoantimonate is an odorless, white solid. It is considered non-flammable and sparingly soluble in water. The pH value is between 7.5 and 9 (20 g · l ⁻¹ at 20 ° C).

use

The compound is used for the detection of sodium ion. This produces the potassium ion and sodium hexahydroxoantimonate (V) .

${\ displaystyle {\ ce {Na + + K [Sb (OH) 6] -> Na [Sb (OH) 6] + K +}}}$

safety instructions

The solid can be toxic if swallowed or inhaled . It can lead to a drop in blood pressure and diarrhea, as well as functional disorders of the kidneys .

Violent reactions are possible with acids . In the event of fire, potassium oxide and antimony oxides can be formed.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g Data sheet potassium hexahydroxoantimonate (V) (PDF) from Merck , accessed on February 13, 2019.
↑ ^a ^b ^c ^d ^e Entry on potassium hexahydroxoantimonate in the GESTIS substance database of the IFA , accessed on February 13, 2019(JavaScript required) .
↑ Eberhard Nürnberg, Peter Surmann (ed.), With the collaboration of Hermann Hager : Hager's Handbook of Pharmaceutical Practice . Volume 2: Methods. Springer Verlag, 2013. ISBN 3642612490 , p. 134.
↑ Data sheet potassium hexahydroxoantimonate from Sigma-Aldrich , accessed on February 13, 2019 ( PDF ).

[MERCK-1] ↑ ^a ^b ^c ^d ^e ^f ^g Data sheet potassium hexahydroxoantimonate (V) (PDF) from Merck , accessed on February 13, 2019.

[GESTIS-2] Entry on potassium hexahydroxoantimonate in the GESTIS substance database of the IFA , accessed on February 13, 2019(JavaScript required) .

[3] Eberhard Nürnberg, Peter Surmann (ed.), With the collaboration of Hermann Hager : Hager's Handbook of Pharmaceutical Practice . Volume 2: Methods. Springer Verlag, 2013. ISBN 3642612490 , p. 134.

[ALDRICH-4] Data sheet potassium hexahydroxoantimonate from Sigma-Aldrich , accessed on February 13, 2019 ( PDF ).