Sodium sulfate
CAS Number: 7757-82-6
Chemical Formula: Na2SO4
Synonyms:
Anhydrous sodium sulfate
Bisodium sulfate
bisodiumsulfate
Appearance: White Powder
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Sodium Sulfate(7757-82-6), Na2SO4, also known as thenardite and salt cake, is a crystalline compound that melts at 888°C (1632°F). Sodium Sulfate is found in natural form(thenardite) in Chile and Spain. It is used in the manufacture of paperboard, glass, and freezing mixtures. The hydrate, Na2SO4·10H2O, also known as “Glauber’s salt,” is a white water-soluble solid formed by heating Sodium chloride and sulfuric acid. It is used in dyeing, manufacturing glass, and in the preparation of sodium bisulfate.
Parameters
| Item | Value |
| Melting point | 884 °C (lit.) |
| Boiling point | 1700°C |
| bulk density | 1400-1600kg/m3 |
| density | 2.68 g/mL at 25 °C (lit.) |
| refractive index | 1.484 |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| pka | 4.76 |
| form | powder (fine) |
| color | White |
| Specific Gravity | 2.68 |
| Odor | wh. cryst. or powd., odorless, bitter saline taste |
| PH | 5.2-8.0 (50g/l, H2O, 20℃) |
| PH Range | 5.2 – 9.2 |
| Water Solubility | 18.5 mg/L |
| λmax | λ: 260 nm Amax: 0.015 λ: 280 nm Amax: 0.015 |
| Sensitive | Hygroscopic |
| Merck | 14,8680 |
| Dielectric constant | 2.7（Ambient） |
| Stability: | Stable. Incompatible with strong acids, aluminium, magnesium, strong bases. Hygroscopic. |
| Cosmetics Ingredients Functions | BULKING VISCOSITY CONTROLLING |
| InChI | 1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 |
| InChIKey | PMZURENOXWZQFD-UHFFFAOYSA-L |
| SMILES | [Na+].[Na+].[O-]S([O-])(=O)=O |
| LogP | -1.031 (est) |
| CAS DataBase Reference | 7757-82-6(CAS DataBase Reference) |
| NIST Chemistry Reference | Sodium sulfate(7757-82-6) |
| EPA Substance Registry System | Sodium sulfate (7757-82-6) |
Safety Information
| Item | Value |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 24/25 |
| WGK Germany | 1 |
| RTECS | WE1650000 |
| F | 3 |
| TSCA | TSCA listed |
| HS Code | 28331100 |
| Storage Class | 13 – Non Combustible Solids |
| Hazardous Substances Data | 7757-82-6(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg |
Product Application
Sodium sulfate is a filler in the manufacturing of synthetic detergents and soaps and a laboratory reagent. It may enhance the irritant action of certain detergents.
Fast delivery time
Inventory 2-3 working days New production 7-10 working days.
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