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Merck 101047 Aluminium potassium sulfate dodecahydrate for analysis EMSURE® ACS,Reag. Ph Eur 1 kg

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Marka
Merck
Stok Kodu
M.101047.1000
Merck 101047 Aluminium potassium sulfate dodecahydrate for analysis EMSURE® ACS,Reag. Ph Eur
Catalogue Number 101047
Synonyms Potassium aluminium sulfate, Alum potassium, Potassium alum

Product Information 
CAS number 7784-24-9
EC number 233-141-3
Grade ACS,Reag. Ph Eur
Hill Formula AlKO₈S₂ * 12 H₂O
Chemical formula KAl(SO₄)₂ * 12 H₂O
Molar Mass 474.39 g/mol
HS Code 2833 30 00

Physicochemical Information 
Density 1.75 g/cm3 (20 °C)
Melting Point 92.5 °C
pH value 3.0 – 3.5 (100 g/l, H₂O, 20 °C)
Bulk density 900 kg/m3
Solubility 139 g/l (20 °C)

Safety Information according to GHS 
RTECS WS5690000
Storage class 10 – 13 Other liquids and solids
WGK WGK 1 slightly water endangering
Disposal 14
Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).

Storage and Shipping Information 
Storage Store at +5 °C to +30 °C.

Specifications 
Specifications
Assay (complexometric) 99,0 – 100,5 %
Identity passes test
Appearance of solution passes test
Insoluble matter ≤ 0,005 %
pH-value (10 %; in water) 3,0 – 3,5
Chloride (Cl) ≤ 0,0005 %
Heavy metals (as Pb) ≤ 0,001 %
Cd (Cadmium) ≤ 0,0005 %
Cu (Copper) ≤ 0,0005 %
Fe (Iron) ≤ 0,0005 %
Na (Sodium) ≤ 0,005 %
NH₄ (Ammonium) ≤ 0,005 %
Pb (Lead) ≤ 0,0005 %
Corresponds to ACS,Reag. Ph Eur

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