Sodium Sulfate
A fining agent for glass and a proven detergent filler.
Sodium sulfate's largest industrial role is in glass manufacturing, where it acts as a fining agent — helping remove trapped gas bubbles from the melt and lowering the temperature at which silica becomes workable. It also serves as a filler and processing aid in powder detergents and as the make-up chemical in kraft pulping.
Typical Specifications
What you're buying.
| Property | Value |
|---|---|
| Chemical formula | Na₂SO₄PER STANDARD |
| Na₂SO₄ purity | 99% minimum typicalTYPICAL — CONFIRM |
| Appearance | White crystalline powderTYPICAL — CONFIRM |
| Moisture | 0.5% maximum typicalTYPICAL — CONFIRM |
| Water insolubles | 0.05% maximum typicalTYPICAL — CONFIRM |
| Bulk density | 80 – 95 lb/ft³ typicalTYPICAL — CONFIRM |
Per standard values are requirements of the cited specification. Typical values reflect commercial norms and should be confirmed against the certificate of analysis for your specific shipment.
Principal Industrial Uses
Where it's used, and why.
Glass Manufacturing
Fining agent that removes gas bubbles from molten glass and reduces melt temperature, improving furnace efficiency and product clarity.
Detergents
Filler and flow aid in powder detergent formulations, providing bulk and controlling density without affecting cleaning performance.
Pulp & Paper
Make-up chemical in the kraft pulping process, replenishing sulfur lost during chemical recovery.
Related Minerals
Often ordered alongside Sodium Sulfate.
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