Potassium disulphite, EMSURE® for analysis, Supelco®

Supplier: Merck
Danger

Synonyms: Dipotassium disulphite, Potassium pyrosulphite, Potassium metabisulphite, di-Potassium disulphite

M-Clarity™ quality level = MQ300

1.05057.0500 1.05057.1000 1.05057.2500
1.05057.0500EA 53.4 GBP
1.05057.0500 1.05057.1000 1.05057.2500
Potassium disulphite, EMSURE® for analysis, Supelco®
di-Potassium disulphite
Formula: K₂O₅S₂
MW: 222,33 g/mol
Melting Pt: 190 °C
Density: 1,2 g/cm³ (20 °C)
MDL Number: MFCD00167605
CAS Number: 16731-55-8
EINECS: 240-795-3
Merck Index: 13,07729

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Specification Test Results

Solubility 450 g/l (20 °C)
Melting Point 150 °C (decomposition)
Molar Mass 222.33 g/mol
Bulk Density 1000 - 1300 kg/m3
Density 2.34 g/cm3
pH 3.0 - 4.5 (50 g/l, H2O, 20 °C)

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