Rubidium acetate

Structural formula
General
Surname	Rubidium acetate
other names	Rubidium ethanoate (according to IUPAC )
Molecular formula	C 2 H 3 O 2 Rb
Brief description	white odorless powder
External identifiers / databases
EC number	209-255-4
ECHA InfoCard	100.008.415
PubChem	23673628
Wikidata	Q1765943
properties
Molar mass	144.52 g · mol -1
Physical state	firmly
Melting point	246 ° C
solubility	860 g l −1 at 45 ° C; 893 g l −1 at 99.4 ° C;
safety instructions
GHS labeling of hazardous substances	no GHS pictograms
	no GHS pictograms
H and P phrases	H: no H-phrases
	P: no P-phrases
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Rubidium acetate is the rubidium salt of acetic acid with the empirical formula CH ₃ COORb.

Extraction and presentation

Rubidium acetate can be produced from rubidium hydroxide and acetic acid by the salt formation reaction .

{\ displaystyle \ mathrm {RbOH + CH_ {3} COOH \ longrightarrow CH_ {3} COORb + H_ {2} O}}

The synthesis from rubidium carbonate and acetic acid with the evolution of carbon dioxide is also possible.

{\ displaystyle \ mathrm {Rb_ {2} CO_ {3} +2 \ CH_ {3} COOH \ longrightarrow 2 \ CH_ {3} COORb + CO_ {2} + H_ {2} O}}

properties

Rubidium acetate is commercially available as a hygroscopic , white powder. It forms monoclinic crystals with the lattice parameters a = 869 pm , b = 618 pm, c = 426 pm and β = 104.4 °.

Individual evidence

↑ Data sheet Rubidium acetate (PDF) from Strem, accessed on December 21, 2019.
↑ Data sheet Rubidium acetate, 99.8% (metals basis) from AlfaAesar, accessed on December 1, 2019 ( PDF )(JavaScript required) .
^ ^A ^b Dale L. Perry, Sidney L. Phillips: Handbook of inorganic compounds . CRC Press, 1995, ISBN 978-0-8493-8671-8 , p. 332 ( limited preview in Google book search).
↑ ^a ^b data sheet Rubidium acetate, ≥99.8% trace metals basis from Sigma-Aldrich , accessed on December 1, 2019 ( PDF ).
^ NV Sidgwick, JAHR Gentle: "The solubilities of the alkali formates and acetates in water", in: J. Chem. Soc., Trans. , 1922 , 121 , pp. 1837-1843; doi : 10.1039 / CT9222101837 .
↑ J. Hatibarua, GS Parry: "A crystallographic study of the acetates of potassium, rubidium and cesium," in Acta Cryst. , 1972 , B28 , pp. 3099-3100; doi : 10.1107 / S0567740872007496 .

[Strem-1] Data sheet Rubidium acetate (PDF) from Strem, accessed on December 21, 2019.

[Alfa-2] Data sheet Rubidium acetate, 99.8% (metals basis) from AlfaAesar, accessed on December 1, 2019 ( PDF )(JavaScript required) .

[Perry-3] A ^b Dale L. Perry, Sidney L. Phillips: Handbook of inorganic compounds . CRC Press, 1995, ISBN 978-0-8493-8671-8 , p. 332 ( limited preview in Google book search).

[Sigma-4] ta sheet Rubidium acetate, ≥99.8% trace metals basis from Sigma-Aldrich , accessed on December 1, 2019 ( PDF ).

[Sidgwick-5] NV Sidgwick, JAHR Gentle: "The solubilities of the alkali formates and acetates in water", in: J. Chem. Soc., Trans. , 1922 , 121 , pp. 1837-1843; doi : 10.1039 / CT9222101837 .

[6] J. Hatibarua, GS Parry: "A crystallographic study of the acetates of potassium, rubidium and cesium," in Acta Cryst. , 1972 , B28 , pp. 3099-3100; doi : 10.1107 / S0567740872007496 .