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Sodium Sulfate

Sodium Sulfate

CAS Number: 7757-82-6

Molecular Formula: Na2SO4

Purity: Sodium Sulfate 99% purity

About Sodium Sulfate

Sodium Sulfate (CAS 7757-82-6), a cornerstone inorganic compound, is increasingly utilized by North American detergent and glass manufacturers who demand General Industry purity 98% to ensure product stability and clarity in high-volume production cycles. Disodium sulfate has observed a strategic pivot within the Unite...

Synonyms

  • disodium sulfate
  • mangxiao
  • mirabilitum
  • natrii sulphas
  • puxiao
View all

Sodium Sulfate Specifications

CAS Number
7757-82-6
Molecular Formula
Na2SO4
Molecular Weight
144.06
IUPAC Name
disodium;sulfate
Canonical SMILES
[O-]S(=O)(=O)[O-].[Na+].[Na+]
InChI Key
PMZURENOXWZQFD-UHFFFAOYSA-L
InChI
InChI=1S/2Na.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
EINECS Number
231-820-9 (Anhydrous purified grade) / 231-820-9 (Industrial grade with iron trace)
MDL Number
MFCD00003504
HSN No
28331100
Molecular Weight
144.06
Melting Point (Experimental)
888°C
Density (Experimental)
2.671 g/cm3
pKa (Experimental)
1.99
density
2.671
solubility
In water, 28.1 g/100 g water at 25 °C
melting_point
884°C
Physical State
White crystalline solid, powder, or granules; orthorhombic or bipyramidal crystals
Purity
Sodium Sulfate 99% purity
Physical appearance
White crystalline solid, powder, or granules; orthorhombic or bipyramidal crystals
odor
Odourless
GHS Statement
Under the (GHS), Sodium Sulfate (Na₂SO₄) is classified as a non-hazardous substance
Hazard Classes and Categories
Acute aquatic toxicity (Category 3)

Detergent Filler

A functional bulking agent used in powdered laundry detergents to standardize product concentration, improve flowability, and prevent caking during storage

Pulping Agent

A critical chemical component used in the Kraft process to break down lignin and convert wood into pulp for high-grade paper products

Glass Fining Agent

A processing aid employed in glass manufacturing to remove small air bubbles from molten glass and prevent scum formation for improved transparency

Textile Leveling Agent

A dyeing auxiliary used to increase ionic strength and reduce negative charges on fibers, ensuring uniform dye absorption and consistent color distribution

Drying Agent

A chemically inert desiccant utilized in organic synthesis and industrial processes to remove traces of water from organic extracts and solvents

Pharmaceutical Excipient

A high-purity reagent used for the precipitation of globulins in blood analysis and as a stabilizing agent in medicinal formulations.

  1. disodium sulfate
  2. mangxiao
  3. mirabilitum
  4. natrii sulphas
  5. puxiao

Sodium Sulfate FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

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TSCA status*

US SDS / HazCom*

GHS classification*

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California Prop 65*

Reliable US supply chain

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