Silver perrhenate

Crystal structure
__ Ag +      __ Re 7+      __ O 2−
General
Surname	Silver perrhenate
other names	Silver (I) -perhenate
Ratio formula	AgReO 4
Brief description	white solid
External identifiers / databases
CAS number 20654-56-2 EC number 624-560-6 ECHA InfoCard 100.153.139 PubChem 11089628 Wikidata Q3916635
properties
Molar mass	358.1 g mol −1
Physical state	firmly
density	6.96 g cm −3 (25 ° C)
Melting point	455 ° C
solubility	poorly soluble in water (1.39 g l −1 at 30 ° C)
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 272-400-315-319-335 P: 221-280-273-305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Silver perrhenate is a chemical compound from the group of perrhenates .

Extraction and presentation

Silver perrhenate can be obtained by reacting sodium perrhenate with silver nitrate . The use of potassium perrhenate instead of sodium perrhenate results in an impure product.

${\displaystyle \mathrm {NaReO_{4}+AgNO_{3}\longrightarrow AgReO_{4}\downarrow +\ NaNO_{3}} }$

properties

Silver perrhenate is a white solid that is poorly soluble in water. As a pure substance, the compound is stable, contaminated products become dark when exposed to light. It has a tetragonal crystal structure of the Scheelite type with the space group I 4 ₁ / a (space group no. 88) and the lattice parameters a = 534.9 pm and c = 1266.8 pm.

Individual evidence

1. ↑ ^{a b c d e f g} Georg Brauer (Ed.) U. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume III, Ferdinand Enke, Stuttgart 1981, ISBN 3-432-87823-0 , p. 1634.
2. ↑ ^{a b} Data sheet Silver perrhenate, 99.99% (metals basis) at AlfaAesar, accessed on August 5, 2013 ( PDF )(JavaScript required) .