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Description
In organic synthesis, analytical workflows, and sample preparation, residual water in organic solvents can significantly affect reaction yield, chromatographic resolution, and reproducibility. Sodium sulfate anhydrous (Na₂SO₄, ACS reagent grade) is a high-purity inorganic salt widely used as a standard laboratory drying agent for efficient removal of trace moisture from organic phases.
This product, also referred to as sodium sulfate Na2SO4, forms a chemically stable, highly water-soluble crystalline powder that rapidly binds water molecules to form hydrated salts. It is commonly used in chemical synthesis, protein crystallization studies, hydrophobic interaction chromatography (HIC), and general analytical chemistry applications where moisture control is critical.
With ≥99.0% assay purity and ultra-low impurity levels, this ACS-grade sodium sulfate ensures consistent performance across laboratory and industrial workflows, supporting reproducible experimental outcomes and high-confidence analytical results.
Specification
| Product Name | Sodium sulfate, anhydrous (Na₂SO₄) |
| Grade | ACS |
| CAS No. | 7757-82-6 |
| Molecular Formula | Na2SO4 |
| Formula Weight | 142.04 |
| Appearance | White crystalline powder |
| Assay | ≥99.0% |
| Solubility | Completely soluble in water, insoluble in ethanol |
| Insoluble Matter | ≤0.01% |
| Loss on Ignition | ≤0.5% |
| pH (5% solution, 25°C) | 5.2 – 9.2 |
| Chloride | ≤0.001% |
| Iron | ≤0.001% |
| Heavy Metals (as Pb) | ≤5 ppm |
| Calcium | ≤0.01% |
| Magnesium | ≤0.005% |
| Potassium | ≤0.01% |
| Storage | Room temperature. Keep tightly closed. Protect from moisture. |
Features
- ACS reagent grade sodium sulfate (Na2SO4) with ≥99.0% purity for analytical reliability.
- Highly efficient drying agent for removal of trace water from organic solvents.
- Ultra-low impurity profile (chloride, iron, heavy metals tightly controlled).
- High water solubility enabling rapid phase interaction and drying performance.
- Stable inorganic salt suitable for chromatography and biochemical workflows.
- Consistent lot-to-lot quality for reproducible laboratory results.
Applications
- Organic synthesis: removal of residual water from organic phases after extraction.
- Analytical chemistry: sample preparation and solvent purification.
- Chromatography: hydrophobic interaction chromatography (HIC) and buffer salt systems.
- Protein chemistry: protein crystallization and stability studies.
- Biochemical research: protein folding and interaction assays.
- Industrial use: textile dyeing, paper pulp processing, and glass manufacturing.
High Purity & Batch Consistency Verification
Sodium sulfate Na2SO4 is manufactured under strict quality control to ensure ACS reagent compliance and reproducible performance in laboratory workflows.
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≥99.0% assay purity confirmed by analytical testing
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Low heavy metal and chloride content for sensitive applications
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Stable crystalline structure ensuring consistent drying efficiency
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Validated for use in analytical and biochemical research workflows
Documents
FAQ
What is sodium sulfate Na2SO4 used for in the laboratory?
It is primarily used as a drying agent to remove trace water from organic solvents after extraction or synthesis.
Is sodium sulfate anhydrous suitable for chromatography applications?
Yes. ACS-grade sodium sulfate is commonly used in chromatography workflows, including sample preparation and buffer systems.
What makes ACS reagent sodium sulfate different?
ACS grade ensures strict control of impurities such as heavy metals, chloride, and iron, providing higher analytical reliability.
Can sodium sulfate Na2SO4 be used in protein research?
Yes. It is widely used in protein crystallization and hydrophobic interaction chromatography studies.
How should anhydrous sodium sulfate be stored?
Store at room temperature in a tightly sealed container and protect from moisture due to its hygroscopic nature.
For laboratory research use only.
When can I expect my order to ship?
Most orders are filled and shipped within 2-3 business days from the time they are received.
Our standard shipping usually take 2-5 days.
We also provide express shippping for time-sensitive deliveries.
Email contact@biofargo.com if you have any requirements.

