Potassium disulphate, EMSURE® ACS for analysis, Supelco®
Supplier: Merck
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Danger
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Synonyms:
Potassium disulphate (Potassium pyrosulphate), Dipotassium disulphate, Potassium pyrosulphate
M-Clarity™ quality level = MQ300
1.05107.1000
1.05107.5000
1.05107.9050
1.05107.1000EA
221
GBP
1.05107.1000
1.05107.5000
1.05107.9050
Potassium disulphate, EMSURE® ACS for analysis, Supelco®
Potassium disulphate
Formula:
K₂O₇S₂ MW: 254,32 g/mol Melting Pt: ∼325 °C Density: 2,51 g/cm³ (20 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00011385 CAS Number: 7790-62-7 EINECS: 232-216-8 UN: 2923 ADR: 8 (6.1),I Merck Index: 13,07749 |
Specification Test Results
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 % |
Conforms ACS |
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