Alluminio potassio solfato dodecaidrato AGR, 500 g

Alluminio potassio solfato dodecaidrato AGR
AlK(SO4)2·12H2O
Allume di potassio
M.W: 474.39 CAS: 7784-24-9 EC: 233-141-3 TARIC: 28333000

Appearance ≥ White crystalline powder/crystals
Assay (complexometric) 99.0 – 100.5%
Identification: to comply USP, BP test
Appearance of solution ≥ Passes test
Insoluble matter ≤ 0.005%
pH (10% solution in water) 3.0 – 3.5
Chloride (Cl–) ≤ 0.0005%
Ammonium (NH4) ≤ 0.005%
Arsenic (As) ≤ 0.0002%
Copper (Cu) ≤ 0.0005%
Iron (Fe) ≤ 0.0005%
Heavy metal (as Pb) ≤ 0.001%
Sodium (Na) ≤ 0.02%
Loss on drying (at 400ºC) 43 – 46%