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LC4936 Potassium disulfate (Potassium pyrosulfate)
for analysis EMSURE ACS

 

Order number Packaging Quantity Price €
AC31936 Plastic bottle 1 kg 54.9
AC31936 Plastic bottle 5 kg 224.1
AC31936 Fibre carton 50 kg Inquire

 

Product information
Grade ACS
Synonyms Potassium pyrosulfate
Hill Formula K2O7S2
HS Code 2833 29 80
EC number 232-216-8
Molar mass 254.33 g/mol
CAS number 7790-62-7

 

Chemical and physical data
Solubility (20 °C) soluble
Melting point 325 °C
Molar mass 254.33 g/mol
Density 2.25 g/cm3 (25 °C)
Bulk density 830 kg/m3
pH value 0.8 (50 g/l, H2O, 20 °C)

 

Safety information
S Phrase S 22-24/25
Do not breathe dust.Avoid contact with skin and eyes.
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).

 

Specifications
Assay (acidimetric, as K2S2O7) 97.5 – 100.0 %
Acidity (as H2SO4) 37.5 – 38.6 %
Insoluble and by ammoniumhydroxide precipitated matter ≤ 0.01 %
Chloride (Cl) ≤ 0.0005 %
Phosphate (PO4) ≤ 0.001 %
Total nitrogen (N) ≤ 0.002 %
Heavy metals (as Pb) ≤ 0.001 %
Al (Aluminium) ≤ 0.001 %
As (Arsenic) ≤ 0.0005 %
Ca (Calcium) ≤ 0.002 %
Fe (Iron) ≤ 0.0005 %
Mg (Magnesium) ≤ 0.0005 %
Na (Sodium) ≤ 0.01 %
Water (H2O) ≤ 2.5 %