We do not offer international shipping to countries within the European Union
We can only ship non-hazardous products to Rest of World
Compare all Pack Sizes
Unfortunately, we are not currently accepting orders for Northern Ireland, Jersey and Guernsey.
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
Moisture content at 145°C 3% maximum
Equilibrium capacity for water vapour at
25°C and given relative humidity (r.h.)
10% r.h. > 8% w/w (weight for weight)
20% r.h. > 12% w/w
50% r.h. > 23% w/w
80% r.h. > 30% w/w
BET surface area 600 - 800 m2/g
Pore volume 0.35 – 0.45 ml/g
Average pore diameter 20 – 30 A
pH (10% aqueous solution) Not less than 1.8-2.2
Bulk density 700 - 800 g/l
Colour change
Dark Orange 10% w/w absorption
Olive Green 15% w/w absorption
Dark Green 20% w/w adsorption
Bead Size
Less than 2 mm 5% maximum
Greater then 5 mm 5% maximum
We can also accept a bank transfer (UK Only)