POTASSIUM OSMATE(VI) DIHYDRATE Property

Water Solubility 

soluble H2O; insoluble alcohol, ether [MER06]

EPA Substance Registry System

Osmate (OsO42-), dipotassium, (T-4)- (19718-36-6)

Safety

Hazard Codes 

T

Risk Statements 

23/24/25

Safety Statements 

22-26-36-45

RIDADR 

UN 3288 6.1/PG 2

WGK Germany 

3

HazardClass 

6.1(b)

PackingGroup 

III

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H301Toxic if swalloed

H311Toxic in contact with skin

H330Fatal if inhaled

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P284Wear respiratory protection.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P310Immediately call a POISON CENTER or doctor/physician.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P320Specific treatment is urgent (see … on this label).

P321Specific treatment (see … on this label).

P322Specific measures (see …on this label).

P330Rinse mouth.

P361Remove/Take off immediately all contaminated clothing.

P363Wash contaminated clothing before reuse.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

P405Store locked up.

P501Dispose of contents/container to..…

POTASSIUM OSMATE(VI) DIHYDRATE Chemical Properties,Usage,Production

Chemical Properties

purple powder(s); hygroscopic rhomb crystal(s); slowly decomposes in aqueous solution, forming tetroxide [STR93] [MER06] [KIR82]

Purification Methods

It forms hygroscopic POISONOUS crystals which are soluble in H2O but insoluble in EtOH and Et2O. It decomposes slowly in H2O to form the tetroxide which attacks the eyes. The solid should be kept dry and in this form it is relatively safe. [Lloyd et al. Synthesis 610 1972, Grube in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1604 1965.]