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Other names
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.028.647 |
EC Number |
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PubChem CID
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RTECS number |
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UNII | |
UN number | 1502 |
CompTox Dashboard (EPA)
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Properties | |
NaClO4 (anhydrous) NaClO4·H2O (monohydrate) | |
Molar mass | 122.44 g/mol (anhydrous) 140.45 g/mol (monohydrate) |
Appearance | White crystalline solid |
Density | 2.4994 g/cm3 (anhydrous) 2.02 g/cm3 (monohydrate) |
Melting point | 468 °C (874 °F; 741 K) (decomposes, anhydrous) 130 °C (monohydrate) |
Boiling point | 482 °C (900 °F; 755 K) (decomposes, monohydrate) |
209.6 g/(100 mL) (25 °C, anhydrous) 209 g/(100 mL) (15 °C, monohydrate) | |
Refractive index (nD)
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1.4617 |
Structure | |
orthorhombic | |
Hazards | |
GHS labelling: | |
Danger | |
H271, H302, H319, H373 | |
P102, P220, P305+P351+P338, P338 | |
NFPA 704 (fire diamond) | |
Flash point | 400 °C (752 °F; 673 K) |
Safety data sheet (SDS) | ICSC 0715 |
Related compounds | |
Other anions
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Other cations
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Related compounds
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Perchloric acid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sodium perchlorate is an inorganic compound with the chemical formula NaClO4. It consists of sodium cations Na+ and perchlorate anions ClO−4. It is a white crystalline, hygroscopic solid that is highly soluble in water and ethanol. It is usually encountered as sodium perchlorate monohydrate NaClO4·H2O. The compound is noteworthy as the most water-soluble of the common perchlorate salts.
Sodium perchlorate and other perchlorates has been found on the planet Mars, first detected by the NASA probe Phoenix in 2009. This was later confirmed by spectral analysis by the Mars Reconnaissance Orbiter in 2015 of what is thought to be brine seeps which may be the first evidence of flowing liquid water containing hydrated salts on Mars.[1][2]