CAS 7757-82-6 Sodium Sulfate Anhydrous - Materials / Alfa Chemistry

NAVIGATION

Sodium Sulfate Anhydrous

PRICE INQUIRY

Catalog Number

ACM7757826-1

CAS Number

7757-82-6

Product Name

Sodium Sulfate Anhydrous

Structure

Category

Ceramic Materials

Description

Liquid;DryPowder; DryPowder, Liquid; DryPowder, OtherSolid; DryPowder, PelletsLargeCrystals, Liquid; Liquid; OtherSolid; OtherSolid, Liquid; PelletsLargeCrystals; WetSolid; WetSolid, Liquid;Colourless crystals or a fine, white, crystalline powder; The decahydrate is efflorescent;WHITE HYGROSCOPIC SOLID IN VARIOUS FORMS.

IUPAC Name

disodium;sulfate

Molecular Weight

142.04g/mol

Molecular Formula

Na2SO4? nH₂O (n = 0 or 10);Na2SO4;Na2SO4;Na2O4S

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

Melting Point

884 °C;884 °C

Density

2.671;Relative density (water = 1): 2.7

Solubility

In water, 28.1 g/100 g water at 25 °C;In water, 445.47 g/L at 20 °C and pH 5.23 (shake flask method);Soluble in about 3.6 parts water; 1 in 2 parts water is maximum solubility at 33 °C; at 100 °C it requires 2.4 parts water;Soluble in glycerin; insoluble in alcohol;SOL IN HYDROGEN IODIDE;Solubility in water: very good

Application

Sodium Sulfate Anhydrous is a versatile compound primarily used in various industrial and laboratory applications. It serves as a filler in the production of synthetic detergents and soaps, where it can boost the irritant action of certain detergents. In its anhydrous form, this crystalline substance, typically appearing as a white solid, is utilized extensively in the manufacture of glass and in dyeing processes to ensure an even finish. Additionally, it finds application in the preparation of paperboard and freezing mixtures. In its decahydrate form, known as Glauber's salt, sodium sulfate is soluble in water, making it useful in various industrial processes. Its natural occurrence as thenardite in regions like Chile and Spain facilitates its availability for these diverse uses.

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

EC Number

231-820-9;268-366-6;268-773-9;270-211-2

Exact Mass

141.931268g/mol

Formal Charge

Heavy Atom Count

ICSC Number

0952

Log P

log Kow = -4.38 (est)

MeSH Entry Terms

disodium sulfate;mangxiao;mirabilitum;natrii sulphas;puxiao;sodium bisulfate;sodium bisulfate, monohydrate;sodium hydrosulfate;sodium sulfate;sodium sulfate, 35S-labeled cpd;sodium sulfate, decahydrate;sulfuric acid, monosodium salt;thenardite

Monoisotopic Mass

141.931268g/mol

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

Refractive Index

Index of refraction: 1.464

Rotatable Bond Count

RTECS Number

WE1650000

Stability

Stable under recommended storage conditions.

UNII

36KCS0R750

Viscosity

2.48 (22% solution at 20 °C)

If you have any other questions or need other size, please get a quote.