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International Shipping

We do not offer international shipping to countries within the European Union

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

Sodium Alginate 98%

Price: £28.95
Stock Availability:

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Stock Availability
On Shelf - Approx. UK delivery date: Tuesday the 08th April 2025*
In bulk stock - ships within 4 - 8 Days (Excluding weekends and public holidays)
4 - 6 Weeks Approx.
UK Shipping

We can only ship to Northern Ireland where a Royal Mail postal option has been chosen at checkout.

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
  • Manufacture of paper & textiles
  • Waterproofing Fabrics
  • Dentistry
  • Increases Viscosity
  • Food additive

Alginic acid, also called algin or alginate, is an anionic polysaccharide distributed widely in the cell walls of brown algae, where through binding with water it forms a viscous gum. In extracted form it absorbs water quickly; it is capable of absorbing 200–300 times its own weight in water. Its colour ranges from white to yellowish-brown.

  • Particle Size (through 120 mesh): >98%
  • Ash: 18-27
  • pH (1% Solution): 6 -8
  • Cadmium (Cd): <1mg/Kg
  • Arsenic (As): <3mg/Kg
  • Loss on drying: <15%
  • Lead (Pb): <5mg/Kg
  • Viscosity (1% sol,20deg C,spindle4,60rpm): Min 400mPas
  • Matter insoluble in water (on DM): <2%
  • Mercury (Hg): <1mg/Kg
  • Formaldehyde: <50mg/Kg

Microbiological

  • Total Viable COunt: <5000fcu/g
  • Yeasts: <500cfu/g
  • Moulds: <500cfu/g
  • Salmonella: absent in 10g
  • Escherichia Coli: absent in 5gm

Hazard Phrases: Not considered harmful under normal laboratory conditions

Cas No: 9005-38-3

Payment Methods

We can also accept a bank transfer (UK Only)

Latest Feedback

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    Among the best customer service ever via Amazon.
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    Item exactly as described and of high purity. Well packed for delivery as well.
  • Rating:
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    Very helpful and courteous emails from seller, as I had misunderstood details of purchase. A refund was very promptly sent. Thank you very much for your understanding.
  • Rating:
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    Prompt delivery no problems would recommend
Source Chemicals Ltd