Sodium Sulfate

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Sodium sulfate
Identifiers
CAS number 7757-82-6 YesY
7727-73-3 (decahydrate)
PubChem 24436
RTECS number WE1650000
Properties
Molecular formula Na2SO4
Molar mass 142.04 g/mol (anhydrous)
322.20 g/mol (decahydrate)
Appearance white crystalline solid
hygroscopic
Density 2.664 g/cm3 (anhydrous)
1.464 g/cm3 (decahydrate)
Melting point

884 C (anhydrous)
32.4 C (decahydrate)

Boiling point

1429 C (anhydrous)

Solubility in water 4.76 g/100 ml (0 C)
42.7 g/100 ml (100 C)
Solubility insoluble in ethanol
Refractive index (nD) 1.468 (anhydrous)
1.394 (decahydrate)
Structure
Crystal structure orthorhombic or hexagonal (anhydrous)
monoclinic (decahydrate)
Hazards
MSDS External MSDS
EU Index Not listed
Main hazards Irritant
NFPA 704
NFPA 704.svg
0
1
0
Flash point Non-flammable
Related compounds
Other anions Sodium selenate
Sodium tellurate
Other cations Lithium sulfate
Potassium sulfate
Rubidium sulfate
Caesium sulfate
Related compounds Sodium bisulfate
Sodium sulfite
Sodium persulfate
Supplementary data page
Structure and
properties
n, ?r, etc.
Thermodynamic
data
Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
 YesY (what is this?)  (verify)
Except where noted otherwise, data are given for materials in their standard state (at 25 C, 100 kPa)
Infobox references

* Source: Wikipedia


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