disodium sulfate decahydrate, CAS No. 7727-73-3

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7727-73-3

Catalog No. EBD88077

CAS 7727-73-3

Name disodium sulfate decahydrate

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Basic Information

Synonyms: NATRIISULFASDECAHYDRICUS SODIUMSULPHATE10-hydrate SODIUMSULPHATEdecahydrate SODIUMSULPHATEIOH2O Sodiumsulfate,10-hydrate Sodiumsulfatedecahydrate sodiumsulfatehydrate(2:1:10) glauber'ssalt Sodiumsulfate,decahydrate Sodiumsulfatehydrated disodiumsulfatedecahydrate sulfuricacidsodiumsalt(1:2),hydrate(1:10) glauber sodiumsulfate(na2so4)decahydrate sodiumsulfatedecahydrate(na2so4.10h2o) disodiumsulfatedecahydrate(na2so4.10h2o) sulfuricaciddisodiumsalt,decahydrate(8ci,9ci)

Molecular Formula: H20Na2O14S

Molecular Weight: 322.19

MDL Number: MFCD00149189

Categories: Functional Chemicals > Consumer & Industrial Chemicals > Water Treatment Chemicals Synthetic Chemistry > Basic Synthetic Reagents > Inorganic Compounds and Metal Salts

Product Description:

Disodium sulfate decahydrate, commonly known as Glauber's salt, is an inorganic salt with the chemical formula Na₂SO₄·10H₂O. It appears as colorless, transparent, monoclinic crystals. This compound is the decahydrate form of sodium sulfate and is highly soluble in water. Its primary industrial application is in the manufacturing of detergents and paper pulp, where it serves as a processing aid and filler. In the realm of water treatment, it is utilized in specific processes, such as in the regeneration of ion-exchange resins for water softening. Furthermore, it finds use in the textile industry as a leveling agent in dyeing processes and historically as a mild laxative in medicinal applications (Glauber's salt). The decahydrate form is metastable and readily loses its water of crystallization upon exposure to dry air, converting to the anhydrous form (thenardite). It is generally considered to have low toxicity but should be handled with standard laboratory precautions to avoid ingestion or prolonged skin contact.

Physical Properties

Melting Point: 32.4 °C

Boiling Point: 330 °C at 760 mmHg

Density: 1.46 g/mL at 25 °C(lit.)

Solubility: water: 1 M at 20 °C, clear, colorless

Storage: 2-8°C

Analytical Data

Appearance: crystals