Rubidium bromate

Structural formula
General
Surname	Rubidium bromate
Molecular formula	RbBrO 3
External identifiers / databases
CAS number 13446-70-3 Wikidata Q2171574
properties
Molar mass	213,37  g · mol -1
Physical state	firmly
density	3.68 g cm −3
Melting point	430  ° C
solubility	29.3 g l −1  at 25 ° C
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 .

Rubidium bromate is the rubidium salt of bromic acid with the chemical composition RbBrO ₃ .

Manufacturing

Rubidium bromate can be made from rubidium carbonate and bromic acid.

${\displaystyle \mathrm {Rb_{2}CO_{3}+2\ HBrO_{3}\longrightarrow 2\ RbBrO_{3}+H_{2}O+CO_{2}\uparrow } }$

Production from rubidium carbonate and sodium bromate is also possible.

${\displaystyle \mathrm {Rb_{2}CO_{3}+2\ NaBrO_{3}\longrightarrow 2\ RbBrO_{3}+Na_{2}CO_{3}} }$

properties

Solubility of RbBrO 3 in water
Temperature [° C]	25th	30th	35	40
Solubility [g / l]	29.3	35.5	42.8	50.8

The solubility of rubidium bromate in water is given in the table below.

Rubidium bromate crystallizes without crystal water in the trigonal crystal system with the space group R 3 m (space group no. 160) and the lattice parameters a = 621.8 pm and c = 809.9 pm, there are three formula units in the unit cell . Rubidium bromate reacts with hydrogen bromide to form rubidium tribromide .

Individual evidence

1. ↑ ^{a b c} Dale L. Perry, Sidney L. Phillips: Handbook of inorganic compounds . CRC Press, 1995, ISBN 978-0-8493-8671-8 , p. 333 ( limited preview in Google book search).
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. ↑ Harold D. Buell, CR McCrosky: "The preparation and study of the rarer alkali bromates. Rubidium bromate." in J. Am. Chem. Soc 1921 , 43 (9), pp. 2031-2034. doi : 10.1021 / ja01442a006
4. ↑ Vernon A. Stenger, Richard M. Van Effen: "Solubilities of Alkali Metal Bromates and Iodates in Methanol at Room Temperature" in J. Chem. Eng. Data 1999 , 44 (2), pp. 173-174. doi : 10.1021 / je980120a
5. ↑ Aterton Seidell: "Solubilities Of Organic Compounds Vol - I", S. 1429. Full text
6. ↑ JW Mellor: "A comprehensive treatise on inorganic and theoretical chemistry", Volume 2, Verlag Longmans, Green 1965. P. 763, ( limited preview in Google book search)
7. ^ Jean D'Ans, Ellen Lax: Pocket book for chemists and physicists. 3. Elements, inorganic compounds and materials, minerals, Volume 3. 4. Edition, Springer, 1997, ISBN 978-3-5406-0035-0 , p. 684 ( limited preview in Google book search).
8. ↑ John E. Lind Jr., Raymond M. Fuoss: "Conductance of the Alkali Halides. IV. Rubidium Bromide in Dioxane-Water Mixtures" in J. Phys. Chem. 1962 , 66 (9), pp. 1727-1729. doi : 10.1021 / j100815a041