CAS 7757-82-6
Sodium Sulfate Anhydrous LR
CAS 7757-82-6Na2O4S142.04 g/mol
Sodium Sulfate Anhydrous LR (CAS 7757-82-6) is primarily used as a drying agent and in the manufacturing of detergents and glass. This high-purity white powder boasts a melting point of 884 °C and a density of 2.671. It is highly soluble in water, making it ideal for various industrial applications, including its effectiveness in textile processing and in the formulation of cosmetics and personal care products.
Main applicationDrying agent in laboratory settings — removes moisture from organic solvents.
Sodium Sulfate Anhydrous LR is essential for industries such as textiles and detergent manufacturing, where moisture control and ingredient purity are critical for product performance. Its versatility ensures it remains a staple ingredient across various applications, contributing to operational efficiency and product quality.
Also known as
- SODIUM SULFATE
- Disodium sulfate
- Sodium sulfate anhydrous
- Sodium sulfate
- anhydrous
- Salt cake
- Sodium sulphate
- Sulfuric acid disodium salt
- Disodium sulphate

Trade pricing
Quoted per enquiry
Pricing depends on volume, grade and delivery point. Our desk responds within two working hours.
Available packaging
- Available in 25 kg bags
- suitable for lab and industrial use.
Documentation
Batch-specific COA issued with every consignment.
Technical specifications
- CAS number
- 7757-82-6
- Chemical formula
- Na2O4S
- Molecular weight
- 142.04 g/mol
- Grade
- Technical grade
- Appearance
- White powder
- Density
- 2.671 g/cm³
- Melting Point
- 884 °C
- Density
- 2.671 g/cm³
- Solubility
- 28.1 g/100 g water
- pH
- 9.0
Sodium sulfate anhydrous is a double sodium sulfate with the molecular formula Na2O4S, having a molecular weight of 142.04 g/mol. Its known properties, such as a melting point of 884 °C and solubility of approximately 28.1 g in 100 g of water at 25 °C, make this grade suitable for processes requiring quick dissolution and neutral pH levels. When ordering, buyers should specify the required purity and pack size, as this product is available in 25 kg bags, ensuring adequate supply for various applications.
Delivery
Sodium Sulfate Anhydrous LR is dispatched from our Nairobi warehouse across Kenya, and export delivery is arranged to the wider East African market. Lead time depends on quantity and grade and is confirmed with your quotation — see delivery and collection for the towns we reach and how dispatch works.
Applications & uses
- Drying agent in laboratory settings — removes moisture from organic solvents.
- Manufacturing of detergents — enhances cleaning efficiency and formulation stability.
- Textile processing — aids dyeing and finishing processes.
- Glass production — reduces melting temperature for silica.
- Cosmetics formulation — stabilizes emulsions and enhances texture.
Industries we supply this to
Why buy this from Sparks
- Ideal for laboratory use due to its high purity, ensuring reliable test results.
- Facilitates efficient drying processes in industrial applications, improving productivity.
- Enhances cleaning products, providing a better quality and effective results.
- Aids in cost-effective glass production by lowering energy requirements.
- Improves textile dyeing processes, leading to vibrant colors and better fabric quality.
Quality assurance
- Batches are checked against the specification values listed above before dispatch.
State what your process, auditor or customs clearance requires when you request a quotation, and it is confirmed with the quote.
Safety, handling & storage
Always consult the full Safety Data Sheet before handling. Personnel must use appropriate PPE and follow local regulations for storage, transport and disposal.
Frequently asked questions
What is the CAS number of Sodium Sulfate Anhydrous LR?
The CAS registry number for Sodium Sulfate Anhydrous LR is 7757-82-6. Its chemical formula is Na2O4S, with a molecular weight of 142.04 g/mol. Quote this number when requesting a quotation or checking documentation, as it identifies the substance unambiguously regardless of the trade name used.
What are the other names for Sodium Sulfate Anhydrous LR?
Sodium Sulfate Anhydrous LR is also referred to as SODIUM SULFATE, Disodium sulfate, Sodium sulfate anhydrous, Sodium sulfate, anhydrous and Salt cake. These names describe the same substance, so a specification or enquiry written against any of them can be matched to this product.
What grade of Sodium Sulfate Anhydrous LR is supplied?
Sodium Sulfate Anhydrous LR is supplied as Technical grade. State the grade your process requires when requesting a quotation — where an alternative grade can be sourced, it is confirmed at quotation stage rather than assumed.
What does Sodium Sulfate Anhydrous LR look like?
Sodium Sulfate Anhydrous LR is described as white powder. Appearance is a useful first check on receipt of goods, though it does not replace the certificate of analysis for confirming that the material meets specification.
What is Sodium Sulfate Anhydrous LR used for?
Common applications include drying agent in laboratory settings — removes moisture from organic solvents., manufacturing of detergents — enhances cleaning efficiency and formulation stability., textile processing — aids dyeing and finishing processes., glass production — reduces melting temperature for silica. and cosmetics formulation — stabilizes emulsions and enhances texture.. The suitability of the product for a particular process depends on the grade and specification required, which is worth confirming against your own process conditions.
Which industries use Sodium Sulfate Anhydrous LR?
Sodium Sulfate Anhydrous LR is supplied to the Food Processing & Beverage, Pharmaceuticals & Healthcare, Cleaning & Detergents, Textile & Leather Tanning and Laboratories & Research sectors. These are the industries this product is listed against in our catalogue; if your application falls outside them, we can advise on suitability before you order.
What packaging is Sodium Sulfate Anhydrous LR available in?
Available in 25 kg bags, suitable for lab and industrial use. Where a different pack size or bulk delivery is required, it is confirmed at quotation stage against availability rather than listed here as standard.
References
Technical information on this page was compiled from the following published sources. Safety and handling data always comes from the supplier’s own safety data sheet.
- 1.PubChem CID 24436pubchem.ncbi.nlm.nih.gov
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