Sodium sulfate

• CAS: 7757-82-6
• Catalog Number: ACM7757826
• Category: Metal & Ceramic Materials
• Molecular Weight: 142.04
• Molecular Formula: Na2O4S
• Description: Sodium sulfate is the inorganic compound with formula Na2SO4 as well as several related hydrates. All forms are White solids that are highly soluble in water. With an annual production of 6 million tonnes, the decahydrate is a major commodity chemical product. It is mainly used for the manufacture of detergents and in the Kraft process of paper pulping.
• Synonyms: Disodium sulfate
• IUPAC Name: Disodium;sulfate
• Canonical SMILES: [O-]S(=O)(=O)[O-].[Na+].[Na+]
• InChI: InChI=1S/2Na.H₂O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q2*+1;/p-2
• InChI Key: PMZURENOXWZQFD-UHFFFAOYSA-L
• Boiling Point: 1700 °C
• Melting Point: 884 °C
• Density: 2.68 g/mL at 25 °C (lit.)
• Solubility: Soluble in glycerin, insoluble in alcohol
• Appearance: White powder
• Storage: Store at +5 °C to +30 °C
• Color/Form: Powder or orthorhombic bipyramidal crystals;White orthorhombic crystals or powder
• Complexity: 62.2
• Corrosivity: The rates of corrosion of iron and steel in water are a function of the specific mineral quality as well as the alkalinity and pH values. Sodium sulfate ... is a strong contributor to the rate of corrosion. For example, in water with 400 mg/l of alkalinity (as CaCO3) at pH 7, the corrosion rate will be zero at 200 mg/l of Na2SO4, but when the concentration of sodium sulfate is 400 mg/l, the corrosion rate will be about 100 mg per square cm per day.
• Covalently-Bonded Unit Count: 3
• Decomposition: When heated to decomposition it emits toxic fumes of sulfur oxides and sodium oxide.
• EC Number: 231-820-9;268-366-6;268-773-9;270-211-2
• Exact Mass: 141.93126821
• Formal Charge: 0
• Hazard Codes: Xi
• H-Bond Acceptor: 4
• H-Bond Donor: 0
• Heavy Atom Count: 7
• HS Code: 2833190000
• ICSC Number: 0952
• LogP: -0.25720
• Monoisotopic Mass: 141.93126821
• Odor: Odorless
• Other Experimental: Transition point to anhydrous form is 24.4 °C; white, rhombic or tetragonal; 19.5 g/100 cc water at 0 °C, 44 g/100 cc water at 20 °C/Sodium sulfate heptahydrate/;Density: 1.46; loses all its water at 100 °C; efflorescent crystals or granules; odorless; aqueous solution is neutral; pH 6 to 7.5; soluble in 1.5 parts water at 25 °C, in 3.3 parts water at 15 °C (solubility in water decreased by sodium chloride); soluble in glycerol; insoluble in alcohol /Sodium sulfate decahydrate/;Transparent, monoclinic crystals; mp: 32.38 °C; index of refraction: 1.394, 1.396, 1.398 /Sodium sulfate decahydrate/;Objectionable taste /Sodium sulfate decahydrate/;4.76 g/100 cc water at 0 °C, 42.7 g/100 cc water at 100 °C; soluble in glycerol; insoluble in alcohol; index of refraction: 1.484, 1.477, 1.471 /Natural thenardite/;Latent heat of fusion: 24.4 kJ at melting point;Heat of formation: -1385 Kj/mole;Entropy: 149.6 J/(mole x K);Heat of solution: 1.17 kJ/mole
• PSA: 88.64
• Refractive Index: 1.484
• Rotatable Bond Count: 0
• RTECS Number: WE1650000
• Stability: Stable. Incompatible with strong acids, aluminium, magnesium, strong bases. Hygroscopic.
• Storage Conditions: Store at RT.
• Topological Polar Surface Area: 88.6 Ų
• UNII: 36KCS0R750
• Vapor Pressure: 3.35E-05mmHg at 25°C
• Viscosity: 2.48 (22% solution at 20 °C)
• WGK Germany: 1

Custom Q&A

What is the molecular formula of sodium sulfate?

The molecular formula of sodium sulfate is Na2SO4.

What is the molecular weight of sodium sulfate?

The molecular weight of sodium sulfate is 142.04 g/mol.

What are the synonyms of sodium sulfate?

The synonyms of sodium sulfate are SODIUM SULFATE, 7757-82-6, Disodium sulfate, Sodium sulfate, anhydrous, Sodium sulfate anhydrous, etc.

What is the IUPAC name of sodium sulfate?

The IUPAC name of sodium sulfate is disodium sulfate.

How does sodium sulfate dissociate in water?

Sodium sulfate anhydrous dissociates in water to provide sodium ions and sulfate ions.

What is the principal cation of the extracellular fluid?

The principal cation of the extracellular fluid is sodium ion.

Is sodium sulfate used as an electrolyte replenisher?

Yes, sodium sulfate anhydrous is an electrolyte replenisher.

What is the CAS number of sodium sulfate?

The CAS number of sodium sulfate is 7757-82-6.

What are some industrial uses of sodium sulfate?

Sodium sulfate has various industrial uses.

Can sodium sulfate be used as a cathartic or diuretic?

Yes, sodium sulfate can be used as a cathartic or diuretic.