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We can only ship non-hazardous products to Rest of World

Sodium Sulphate Decahydrate 99%

Price: £49.95
Stock Availability:

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Stock Availability
On Shelf - Approx. UK delivery date: Wednesday the 17th September 2025*
In bulk stock - ships within 10 - 12 Working Days (Excluding weekends and public holidays)
4 to 6 weeks approx. (Not guaranteed)
UK Shipping

Unfortunately, we are not currently accepting orders for Northern Ireland.

We can only ship to the following postcodes where a Royal Mail postal option has been chosen at checkout.

AB, DD, DG3, DG4, DG6 - DG9, EH, FK, G, HS, IM, IV, KA, KW, KY, ML, PA, PH, PO30 - PO41, TD, TR21 - TR25, ZE

* We will always try to ship as early as possible. Delivery could be much quicker than stated but is not guaranteed

Frequent Uses:

Manufacture of Detergents:
Sodium Sulphate Decahydrate is widely used as a filler in laundry detergents and cleaning products, contributing to the desired consistency and improving the overall quality of detergent formulations.

Glass Production:
It plays a key role in the glass industry, where it is used as a fluxing agent. Sodium sulfate helps to lower the melting point of silica, making it easier to produce glass and other materials.

Chemical Synthesis:
Sodium Sulphate Decahydrate is often used in chemical synthesis processes as a neutral salt. It is involved in the production of various chemicals, including sodium silicate.

Water Treatment:
It can be used in some water treatment processes, where it helps in flocculation or adjusting water chemistry to remove impurities or manage water hardness.

Textile Industry:
In the textile industry, sodium sulfate is employed in dyeing and finishing processes. It enhances the application of dyes to fabrics and is also used in the preparation of textiles before dyeing.

Desiccant Applications:
Due to its moisture-absorbing properties, sodium sulfate decahydrate is used in drying applications, particularly in laboratory and industrial settings that require controlled drying conditions.

What is Sodium Sulphate Decahydrate 99%? Sodium Sulphate Decahydrate (Na₂SO₄·10H₂O), also known as Glauber's Salt, is a chemical compound that is commonly used in various industrial applications. It is a white, crystalline solid that is highly soluble in water and typically found in its decahydrate form.

Shipped from UK Facility: Our Sodium Sulphate Decahydrate is sourced and packaged using non-toxic, chemical-resistant containers, ensuring reliable quality for our customers.

Frequent Uses

Manufacture of Detergents

Sodium Sulphate Decahydrate is widely used as a filler in laundry detergents and cleaning products, contributing to the desired consistency and improving the overall quality of detergent formulations.

Glass Production

It plays a key role in the glass industry, where it is used as a fluxing agent. Sodium sulfate helps to lower the melting point of silica, making it easier to produce glass and other materials.

Chemical Synthesis

Sodium Sulphate Decahydrate is often used in chemical synthesis processes as a neutral salt. It is involved in the production of various chemicals, including sodium silicate.

Desiccant Applications

Due to its moisture-absorbing properties, sodium sulfate decahydrate is used in drying applications, particularly in laboratory and industrial settings that require controlled drying conditions.

  • Assay: >98.5% (dry wt. basis)
  • Molecular Formula: Na2SO4•10H2O
  • Molecular Weight: 322.19 (142.04anhy)
  • Loss on Drying: 52.0-57.0%
  • (8.5-10.5 waters, 130°C/const. wt.)
  • Appearance (Colour): Translucent or white
  • Form: Crystals or crystalline powder

Hazard Phrases: Not considered harmful under normal laboratory conditions

Cas No: 7727-73-3
Einecs No: 231-820-9

Payment Methods

We can also accept a bank transfer (UK Only)

Source Chemicals Ltd