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OSMIC ACID Extra Pure

Store at 2-8°C
Osmium tetroxide

Article No. 05065 Grade Extra Pure
Purity 99.9% CAS No. 20816-12-0
Molecular Formula OsO4 Molecular Weight 254.20
H.S. Code 2843.9019 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour Colorless to pale yellow
Odour Unpleasant Melting point/ Freezing point [°C] 39.5 - 41 °C
Boiling point [°C] 130 °C Vapour pressure [20°C] 9 hPa at 20 °C
Vapour density 8.8 Density [g/cm3] 4.9
Solubility in water [% weight] 5.7 g/100 g water @ 100C

Specifications

Appearance Yellow crystals Assay Min 99.9%
Non-volatile matter Max 0.2% Ruthenium (Ru) Max 0.01%

Safety Information and Hazard Symbols

Skull and Crossbones Corrosion Health Hazard
Symbol: GHS05, GHS06, GHS08
Signal Word: Danger
UN No.: 2471
IMCO Class No.: 6.1
Packing Group: I
Hazardous Statement: H300-H310-H314-H330-H334
Precaution Statement: P260-P264-P280-P284-P301 + P310-P302 + P350
Revision Date: 09-Mar-2023

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