Osmium tetraoxide 99.9+% (trace metals basis)

Supplier: THERMO FISHER SCIENTIFIC CHEMICALS
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AC19118-0010 AC19118-0050 AC19118-1000 AC19118-2500 AC19118-5000
TS19118-0010EA 288 USD
TS19118-0010 TS19118-0050 TS19118-1000 TS19118-2500 TS19118-5000
Osmium tetraoxide 99.9+% (trace metals basis)
Osmium tetraoxide
Formula: O₄Os
MW: 254.23 g/mol
Boiling Pt: 130
Melting Pt: 40
Storage Temperature: Ambient
MDL Number: MFCD00011150
CAS Number: 20816-12-0
EINECS: 244-058-7
UN: 2471
ADR: 6.1 I
Merck Index: 13,06962

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Specification Test Results

Appearance Yellow Crystals
Melting point 40 to 42°C
Heavy metals ≤0.005 %
Solubility Passes test
Purity ≥99.90 % (Metal purity)
Non-volatile matter ≤0.2 %
Osmium (Os) 74.2 to 75.4 %
Ruthenium (Ru) ≤0.01 %


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