Rough Sodium Sulphate Anhydrate
It is white,monoclinal crystal or powder,relative density is2.68,the melting point is 884 centigrade.which dissove inwater.And watery liquor shows alkalescence.lt dissolve inglyceribn,not dissovoles in ethanol.When it is emerged inair,it is easy to become waterysodiuym sulfate,lt turns to bethe hexagon crystal.when it heated up to 241 entigrade.Thepurity and the thin granule are called Na₂SO₄.
Product Parameters
Items | Specification |
Product name | |
Description | White crystal/Powder |
NA2SO4 contene(purity)% | ≥99 |
Water Insoluble% | ≤0.05 |
Iron(be accounted with the Fe)% | ≤0.002 |
Chloride content(by Cl)% | ≤0.35 |
Ca&Mg Content % | ≤0.15 |
Bulk Density g/ml | ≥1.50 |
Whiteness% | ≥85.0 |
Moisture% | ≤0.20 |
PH Value(1% solution) | 6-8 |
Rough Sodium Sulphate Anhydrate is a widely used inorganic compound across multiple industries due to its chemical stability, affordability, and broad functionality. This coarse-form version of sodium sulphate offers unmatched performance in processes requiring high-temperature resistance, moisture absorption, and alkaline balance. Whether you're in glassmaking, detergents, pulp and paper, or chemical manufacturing, Rough Sodium Sulphate Anhydrate serves as a critical raw material.
This guide explores the characteristics, applications, and advantages of using Rough Sodium Sulphate Anhydrate in industrial processes.
What Is Rough Sodium Sulphate Anhydrate?
Rough Sodium Sulphate Anhydrate is the anhydrous (water-free) form of sodium sulphate (Na₂SO₄), presented in a coarse or granular physical form. Unlike fine-powdered grades, Rough Sodium Sulphate Anhydrate is particularly suitable for high-volume industrial operations that require easy handling, controlled dissolution, or non-dusting properties.
This material is typically extracted from natural sources like mirabilite or processed synthetically and then refined to remove water content, resulting in a high-purity, coarse-grain product ready for various industrial uses.
Physical and Chemical Properties of Rough Sodium Sulphate Anhydrate
| Property | Value |
|---|---|
| Chemical Formula | Na₂SO₄ |
| Molecular Weight | 142.04 g/mol |
| Appearance | White to off-white coarse crystals |
| Purity | ≥ 99% |
| pH (10% solution) | ~7–9 |
| Solubility in Water (20°C) | 19.5 g/100 mL |
| Melting Point | 884°C |
| Moisture Content | < 0.5% |
These properties make Rough Sodium Sulphate Anhydrate ideal for industrial-scale thermal processes, bulk storage, and automated feeding systems.
Applications of Rough Sodium Sulphate Anhydrate
Rough Sodium Sulphate Anhydrate plays an essential role in various sectors due to its stability, low cost, and compatibility with other materials:
1. Detergents and Cleaning Agents
Rough Sodium Sulphate Anhydrate is widely used as a filler and bulking agent in powdered laundry detergents. Its coarse nature allows for free-flowing powder formulations and helps control viscosity in liquid detergents.
2. Glass Manufacturing
In glass production, Rough Sodium Sulphate Anhydrate acts as a fluxing agent, reducing the melting temperature of raw materials and improving energy efficiency. It also helps remove air bubbles, resulting in clearer glass.
3. Pulp and Paper Industry
Used in the Kraft process, Rough Sodium Sulphate Anhydrate serves as a makeup chemical to regenerate white liquor, essential in breaking down lignin in wood pulp.
4. Textile Processing
In dyeing and finishing, Rough Sodium Sulphate Anhydrate helps promote dye penetration and level out color distribution on fabrics, particularly in reactive and direct dye systems.
5. Chemical Manufacturing
As a raw material or processing aid, Rough Sodium Sulphate Anhydrate is employed in the production of sodium silicate, sodium sulfide, and other industrial chemicals.
6. Thermal Energy Storage
Due to its stable high melting point and thermal conductivity, Rough Sodium Sulphate Anhydrate is being explored in phase-change materials for energy-saving applications.
Advantages of Rough Sodium Sulphate Anhydrate
✅ Cost-Effective
As a by-product or naturally mined substance, Rough Sodium Sulphate Anhydrate is available at a lower cost compared to other chemical additives with similar properties.
✅ High Thermal Stability
Its melting point of over 880°C makes it suitable for high-temperature operations without decomposition.
✅ Free-Flowing Granules
The coarse texture of Rough Sodium Sulphate Anhydrate prevents clumping, making it ideal for automatic feeding and industrial-scale handling.
✅ Neutral pH
Its near-neutral pH makes Rough Sodium Sulphate Anhydrate compatible with both acidic and basic systems.
✅ Eco-Friendly
Non-toxic and naturally occurring, Rough Sodium Sulphate Anhydrate is considered environmentally safe for most disposal methods and applications.
How to Store and Handle Rough Sodium Sulphate Anhydrate
Storage: Keep in a dry, ventilated warehouse. Avoid exposure to moisture as it may absorb water and turn into the hydrated form.
Handling: Use with standard personal protective equipment (PPE). Although non-toxic, prolonged exposure to dust should be avoided.
Packaging: Typically packed in 25kg or 50kg woven bags with inner liners, or available in bulk bags for industrial use.
Buying Guide: Choosing Quality Rough Sodium Sulphate Anhydrate
When sourcing Rough Sodium Sulphate Anhydrate, ensure the product meets the following criteria:
Purity ≥ 99% for industrial-grade applications.
Consistent granule size for ease of dosing and uniform reaction.
Low moisture content to maintain anhydrous quality.
Bulk availability and reliable logistics support.
Always work with trusted suppliers offering technical data sheets (TDS), certificates of analysis (COA), and customizable delivery options.
Conclusion: Rough Sodium Sulphate Anhydrate—A Reliable Industrial Essential
From detergent manufacturing to high-temperature glassmaking, Rough Sodium Sulphate Anhydrate continues to prove its value as a versatile and dependable raw material. Its low cost, high purity, and stable performance across a wide range of applications make it a staple in global industrial processes.
By choosing Rough Sodium Sulphate Anhydrate, manufacturers benefit from increased efficiency, improved product quality, and reduced operational costs—making it a wise investment for long-term production success.
