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Merck
CN

75630

Osmium tetroxide

puriss., ≥99.9%

Synonym(s):

Osmium(VIII)-oxide, ‘Osmic acid’

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About This Item

Linear Formula:
OsO4
CAS Number:
20816-12-0
Molecular Weight:
254.23
EC Number:
244-058-7
UNSPSC Code:
12352300
MDL number:
MFCD00011150

Key Documents

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InChI key

VUVGYHUDAICLFK-UHFFFAOYSA-N

InChI

1S/4O.Os

SMILES string

O=[Os](=O)(=O)=O

vapor density

8.8 (vs air)

vapor pressure

7 mmHg ( 20 °C)

grade

puriss.

assay

≥99.9%

reaction suitability

reagent type: oxidant

impurities

≤0.1% non volatile impurities

bp

130 °C (lit.)

mp

39.5-41 °C (lit.), 41-44 °C

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Other Notes

Review

pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Eye Dam. 1 - Skin Corr. 1B

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 1

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Regulatory Information

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M. Schroder
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