Siarczan glinowo-potasowy, dodekahydrat Pharmpur®,ekstra czysty, BP, Ph Eur, USP – Scharlau
Additional information
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PRODUCENT: SCHARLAB
Aluminium potassium sulfate
Ałun potasu
– Synonyms: Potassium aluminium sulfate, Alum potassium, Potassium alum
– KAl(SO4)2·12H2O
– M = 474,39 g/mol
– CAS [7784-24-9]
– EINECS-No.: 233-141-3
– Solub. in water: (20 ºC): 139 g/l
– Melting point: 90 ºC
– Tariff number: 2833 30 00 00
– Applications: analytical chemistry, manufacture of dyes, manufacturing of lacquers, in explosive compositions.
– Appearance: Blanco y Cristalino
SPECIFICATIONS
assay (complexometric): 99,0 – 100,5 %
assay (complexometric, referred to dried basis): 99,0 – 100,5 %
Identification sulfates: passes test
Identification aluminium: passes test
Identification potassium: passes test
Identification A (USP): passes test
Identification B (USP): passes test
Identification C (USP): passes test
appearance of solution: clear and colourless
pH (10 %, H2O): 3,0 – 3,5
ammonium (NH4): max. 0,2 %
iron (Fe): max. 100 ppm:
iron (Fe): passes test
loss on drying : 43,0 % – 46,0 %
