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Aluminium Potassium Sulphate 99.5% ACS feedback feedback feedback feedback feedback

Aluminium Potassium Sulphate 99.5% ACS
Price: £3.95
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Stock Availability
On Shelf - Approx. UK delivery date: Friday the 04th 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
  • as a mordant in hand dyeing
  • making crystals
  • is an astringent/styptic and antiseptic
  • a natural deodorant by inhibiting the growth of the bacteria responsible for body odor
  • General Laboratory Reagent

Potassium alum, potash alum or tawas is the potassium double sulfate of aluminium.

It is commonly found in its dodecahydrate form as KAl(SO4)2·12(H2O).

Alum is the common name for this chemical compound, given the nomenclature of potassium aluminum sulfate dodecahydrate.

It is commonly used in water purification, leather tanning, dyeing, fireproof textiles, and baking powder.

It also has cosmetic uses as a deodorant, as an aftershave treatment and as a styptic for minor bleeding from shaving.

  • Minimum Assay: >99.5%
  • Molecular Formula: AlK(S04)2.12H20
  • Molecular Weight: 474.38 g/mol
  • Melting Point: 92 C
  • Water: <4.5%
  • Chloride: <0.01%
  • Iron: <100ppm
  • Aluminium: 5-6%

Hazard Phrases: Not considered harmful under normal laboratory conditions

Cas No: 7784-24-9
Einecs No: 233-141-3
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All good
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thank you ised to tan sheeps pelts.. easy to use as the package weight meant I didn't have to faff about weighing out and could just use 1 sachet for the recipe I had. Thank you
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Great thanks!
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Excellent product and excellent service
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Prompt delivery
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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.
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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.
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    Prompt delivery no problems would recommend
Source Chemicals Ltd