Sodium Sulfate
molecular structure · PubChem
AKA: 7757-82-6, Sodium sulfate anhydrous, Disodium sulfate, Anhydrous, Salt cake, Sodium sulphate, Sulfuric acid disodium salt, Disodium sulphate, Sodium sulphate anhydrous
Synthetic
Clean
Sodium Sulfate Anhydrous is the anhydrous, sodium salt form of sulfuric acid. Sodium sulfate anhydrous disassociates in water to provide sodium ions and sulfate ions. Sodium ion is the principal cation of the extracellular fluid and plays a large part in the therapy of fluid and electrolyte disturbances. Sodium sulfate anhydrous is an electrolyte replenisher and is used in isosmotic solutions so that administration does not disturb normal electrolyte balance and does not lead to absorption or excretion of water and ions.
Solubility In water, 28.1 g/100 g water at 25 °C
Formula
Na2O4S
Mol. Weight
142.04
CAS #
7727-73-3, 7757-82-6
Form
Powder
State
Gas or Vapor; Dry Powder, Pellets or Large Crystals; Pellets or Large Crystals; Water or Solvent Wet Solid; Dry Powder; Dry Powder, Pellets or Large Crystals, Liquid; Liquid; Dry Powder, Liquid, Other
Functions
Bulking
Viscosity Controlling
Adds Body & Volume
Controls Viscosity
Reduces Inflammation
Adds volume
Controls product thickness
Traditional Use
Salt known since ancient times; historically used in mineral baths and spa treatments for its cleansing and mild therapeutic properties. Became standardized in cosmetics in the 19th century as a bulking and clarifying agent.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR