Osmium tetroxide suppliers

Melting point:

40°C

Boiling point:

130 °C

Density 

1.04

vapor density 

8.8 (vs air)

vapor pressure 

7 mmHg at 20 °C

Flash point:

-40 °C

storage temp. 

2-8°C

solubility 

Soluble in alcohol, ether, chloroform, benzene, ammonium hydroxide, phosphorus oxychloride and carbon tetrachloride

form 

Solution

color 

White to yellow,or lemon yellow

Specific Gravity

5.10

Odor

Acrid, chlorine-like odor detectable at 2 ppm (20 mg/m3)

Water Solubility 

Soluble in chloroform, alcohol and ethers.Soluble in water, organic solvents, benzene, alcohol, ether, ammonium hydroxide, phosphorus oxychloride and carbon tetrachloride.

Sensitive 

Air Sensitive

Merck 

14,6893

crystal system

Monoclinic

Space group

C2/c

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.9379	0.4515	0.8632	90	116.6	90	0.3268

Stability:

Stable. Incompatible with strong acids, hydrogen chloride, organic materials, finely powdered metals.

CAS DataBase Reference

20816-12-0(CAS DataBase Reference)

NIST Chemistry Reference

Osmium tetraoxide(20816-12-0)

EPA Substance Registry System

Osmium tetroxide (20816-12-0)

Symbol(GHS) 

GHS05,GHS06

Signal word 

Danger

Hazard statements 

H300+H310+H330-H314

Precautionary statements 

P260-P270-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338

Hazard Codes 

O,T,C,T+,F,Xi,Xn

Risk Statements 

8-23/24/25-40-34-26/27/28-42/43-11-67-66-36/37/38-19-36/38-36/37

Safety Statements 

17-26-27-36/37/39-45-7/9-36/37-16-28-23

OEB

E

OEL

TWA: 0.002 mg/m3 (0.0002 ppm), STEL: 0.006 mg/m3 (0.0006 ppm)

RIDADR 

UN 3175 4.1/PG 2

WGK Germany 

3

RTECS 

RN1140000

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

I

HS Code 

28439090

Hazardous Substances Data

20816-12-0(Hazardous Substances Data)

Toxicity

LD50 oral (rat)
14 mg/kg
LCLO inhal (rat)
40 ppm (4 h)
PEL (OSHA)
0.0002 ppm (0.002 mg/m3)
TLV-TWA (ACGIH)
0.0002 ppm (0.002 mg/m3)
STEL (ACGIH)
0.0006 ppm (0.006 mg/m3)

IDLA

1 mg Os/m3