Rubidium perchlorate

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Rubidium perchlorate[1]
Rubidium perchlorate.png
CAS number 13510-42-4
PubChem 166834
ChemSpider 145966 YesY
EC number 236-840-1
Jmol-3D images Image 1
Molecular formula RbClO4
Molar mass 184.918 g/mol
Appearance Colorless crystals
Density 2.878 g/cm3
2.71 g/cm3 over 279 °C
Melting point 281 °C (538 °F; 554 K)
Boiling point 600 °C (decomp.)
Solubility in water see chart
R-phrases R8, R36/38
S-phrases (S2), S46
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroform Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazard OX: Oxidizer. E.g., potassium perchlorateNFPA 704 four-colored diamond
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Rubidium perchlorate, RbClO4, is the perchlorate of rubidium. It is an oxidizing agent, as are all perchlorates.

It has two allotropes. One, below 279 °C crystallizes in orthorhombic crystal system with lattice constants a = 0.927 nm, b = 0.581 nm, c = 0.753 nm. Over 279 °C, it has cubic structure with lattice constant a = 0.770 nm.[1]

Table of solubility in water:[1]

Temperature (°C) 0 8.5 14 20 25 50 70 99
Solubility (g / 100 ml) 1.09 0.59 0.767 0.999 1.30 3.442 6.72 17.39


  1. ^ a b c F. Brezina, J. Mollin, R. Pastorek, Z. Sindelar. Chemicke tabulky anorganickych sloucenin (Chemical tables of inorganic compounds). SNTL, 1986.

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