Potassium disulfate 97.5-100.0% (K2S2O7 basis, acidimetric), EMSURE® for analysis, Supelco®
Supplier: MilliporeSigma
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Danger
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Synonyms:
Dipotassium disulfate
, Potassium pyrosulphate
, Potassium disulfate (Potassium pyrosulfate)
, Potassium pyrosulfate
, Potassium disulphate (Potassium pyrosulphate)
, Dipotassium disulphate
M-Clarity™ quality level = MQ300
1.05107.1000 will be offered as an alternative to PX1581-1. Different Pack Size, Same Specifications.
1.05107.1000 replaces and is the same as PX1581-5W. Part # Change only, Same Pack Size, Same Specifications.
1.05107.5000 is offered as an alternative to PX581-3. Different Pack Size, Same Specifications.
1.05107.5000 is offered as an alternative to PX1581-5. Different Pack Size, Same Specifications.
1.05107.9050 replaces and is the same as PX1581-20. Part # Change only, Same Pack Size, Same Specifications.
Formula:
K₂O₇S₂ MW: 254.32 g/mol Melting Pt: 325 °C |
MDL Number:
MFCD00011385 CAS Number: 7790-62-7 UN: 2923 ADR: 8,6.1,I Merck Index: 12,07834 |
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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