OSMIC ACID

Name: OSMIC ACID
SKU: KC.1510219

Cat. NoKC.1510219 CategoryAcids Molecular FormulaO4Os CAS20816-12-0 Molecular Weight254.2 g/mol

Package 1GM

Safety & Hazards (GHS) Danger

Corrosive

Acute toxic

⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).

Osmium tetroxide appears as a colorless or yellow solid with a pungent odor of chlorine. Begins to sublime below melting point. Soluble in alcohol. Toxic by inhalation and a strong irritant to the eyes and mucous membranes.

Used primarily for staining of biological and pathological tissues for microscopic study; [ACGIH]
Chief /laboratory/ use of osmium tetroxide is as a biological stain for adipose tissues in histopathological laboratories
Osmium tetroxide is a highly oxidizing, corrosive compound commonly found in electron microscopy laboratories
General purpose reagent. Medical Specialty Pathology. Product Code KEE

Physical Description	Osmium tetroxide appears as a colorless or yellow solid with a pungent odor of chlorine. Begins to sublime below melting point. Soluble in alcohol. Toxic by inhalation and a strong irritant to the …
Color/Form	Pale yellow solid; monoclinic crystals
Odor	Acrid, chlorine-like odor
Melting Point	105 °F (NIOSH, 2024)
Boiling Point	266 °F at 760 mmHg (NIOSH, 2024)
Density	5.1 (NIOSH, 2024) - Denser than water; will sink
Solubility	6 % at 77 °F (NIOSH, 2024)
Vapor Pressure	7 mmHg (NIOSH, 2024)
Stability/Shelf Life	Readily vaporizes from aqueous solution even at room temperature

IUPAC Name	tetraoxoosmium
Molecular Formula	O4Os
Molecular Weight	254.2 g/mol
CAS	20816-12-0
SMILES	O=[Os](=O)(=O)=O
InChIKey	VUVGYHUDAICLFK-UHFFFAOYSA-N
Catalog No	KC.1510219
Pack sizes	1GM

H300 Fatal if swallowed
H310 Fatal in contact with skin
H314 Causes severe skin burns and eye damage
H330 Fatal if inhaled

⚠️ For information only; not a substitute for the official SDS.

OSMIC ACID

OSMIC ACID

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