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Sodium sulfate

Names IUPAC nameSodium sulfateOther names Sodium sulphateDisodium sulfateSulfate of sodiumThénardite (anhydrous mineral)Glauber's salt (decahydrate)Sal mirabilis (decahydrate)Mirabilite (decahydrate mineral)Identifiers CAS Number7757-82-67727-73-3 (decahydrate)3D model (JSmol)Interactive imageChEBICHEBI:32149ChEMBLChEMBL233406ChemSpider22844ECHA InfoCard100.028.928E numberE514(i) (acidity regulators, ...)PubChemCID24436RTECS numberWE1650000UNII36KCS0R7500YPR65R21J (decahydrateCompTox Dashboard(EPA)DTXSID1021291InChIInChI=1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2Key: PMZURENOXWZQFD-UHFFFAOYSA-LInChI=1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2InChI=1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2Key: PMZURENOXWZQFD-UHFFFAOYSA-LSMILES[Na+].[Na+].[O-]S([O-])(=O)=OProperties Chemical formulaNa2SO4Molar mass142.04 g/mol (anhydrous)322.20 g/mol (decahydrate) Appearance white crystalline solid, hygroscopicOdorodorless Density2.664 g/cm (anhydrous)1.464 g/cm (decahydrate) Melting point884 °C (1,623 °F; 1,157 K) (anhydrous)32.38 °C (decahydrate) Boiling point1,429 °C (2,604 °F; 1,702 K) (anhydrous) Solubility in wateranhydrous:4.76 g/100 mL (0 °C)28.1 g/100 mL (25 °C)49.7 g/100 mL (32.384 °C)42.7 g/100 mL (100 °C) heptahydrate:19.5 g/100 mL (0 °C)44 g/100 mL (20 °C) Solubilityinsoluble in ethanolsoluble in glycerol, water, and hydrogen iodideMagnetic susceptibility (χ)−52.0·10 cm/mol (anhydrous), −184·10 cm/mol (decahydrate) Refractive index (nD)1.468 (anhydrous)1.394 (decahydrate) Structure Crystal structureorthorhombic (anhydrous)monoclinic (decahydrate) Thermochemistry Heat capacity(C)128.2 J/(mol K) Std molarentropy(S298)149.6 J/(mol K) Std enthalpy offormation(ΔfH298)−1387.1 kJ/mol Enthalpy of fusion(ΔfHfus)200.8 kJ/mol Pharmacology ATC codeA06AD13 (WHO) A12CA02 (WHO) Hazards Occupational safety and health (OHS/OSH): Main hazardsIrritant NFPA 704 (fire diamond) 100Flash pointNon-flammable Safety data sheet (SDS) ICSC 0952Related compounds Other anionsSodium selenateOther cationsLithium sulfatePotassium sulfateRubidium sulfateCaesium sulfateRelated compoundsSodium bisulfateSodium sulfiteSodium persulfateSodium pyrosulfateSupplementary data page Sodium sulfate (data page)Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).Yverify ( ?)

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