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Magnesium Chloride Hexahydrate 98.0-101% Ph.Eur

Magnesium Chloride Hexahydrate 98.0-101% Ph.Eur
Price: £2.95
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Pack: 2 x 1Kg

Price: £17.95

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On Shelf - Approx. UK delivery date: Thursday the 11th 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
  • Water Treatment: Used to add Magnesium to Sea Water
  • Animal Feeds: source of magnesium nutrition, catalysers, salts for Sea Aquariums
  • It is a food additive often used in cooking
  • Used in manufacture of some medicines as supplemental source of magnesium
  • Gardening - can be used as an effctive substitute for Epsom Salts
  • Anti Icer/Snow Melter
  • Manufacture of Textiles, Paper and fire proofing agents
  • manufacture of abrasives
  • Dust Suppression

Magnesium chloride hexahydrate (Dead Sea Salt) is the name for the chemical compounds with the formulas MgCl2 and its various hydrates MgCl2(H2O)x. These salts are typical ionic halides, being highly soluble in water. The hydrated magnesium chloride can be extracted from brine or sea water. Magnesium chloride as the natural mineral bischofite is also extracted (solution mining) out of ancient seabeds; for example, the Zechstein seabed in northwest Europe.

Conforms to Ph.Eur Specification

Minimum Assay: >98.0-101.0%
As MGCl2: >46.5%

Molecular Formula: Cl2Mg.6H2O
Molecular Weight: 203.3 g/mol
Melting Point: 116-118°C
Bromides: <0.05%
Sulphate (SO4): <0.01%
Aluminium (Al): <0.0001%
Arsenic (As): <0.0002%
Calcium (Ca): <0.1%
Heavy Metals (as Pb): <0.001%
Potassium (K): <0.05%

Iron (Fe): <0.001%
Water: 51.0-55.0% (Water of crystallisation)

Storage Temperature: 20-24C

Hazard Phrases: May be Harmful if Swallowed

Cas No: 7791-18-6
Einecs No: 232-094-6

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Source Chemicals Ltd