COBALT(II) FLUORIDE TETRAHYDRATE Property

Melting point:

200°C

Boiling point:

decomposes [MER06]

Density 

2.19 g/mL at 25 °C(lit.)

form 

Powder

color 

Pink

Specific Gravity

2.19

Water Solubility 

soluble H2O [MER06]

Sensitive 

Moisture Sensitive

Merck 

14,2440

Exposure limits

ACGIH: TWA 0.02 mg/m3

CAS DataBase Reference

13817-37-3(CAS DataBase Reference)

Safety

Hazard Codes 

T

Risk Statements 

23/24/25-32-34

Safety Statements 

26-27-28-36/37/39-45

RIDADR 

UN 2923 8/PG 3

WGK Germany 

3

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

III

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H301Toxic if swalloed

H314Causes severe skin burns and eye damage

H317May cause an allergic skin reaction

H318Causes serious eye damage

H351Suspected of causing cancer

Precautionary statements

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

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

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

COBALT(II) FLUORIDE TETRAHYDRATE Chemical Properties,Usage,Production

Chemical Properties

Rose red crystal

Uses

Cobalt(II) fluoride tetrahydrate is used as a starting material to synthesize 2-dimensional cobalt-fluoride-oxide as an oxygen evolution electrocatalysts using a rapid thermal annealing (RTA) method. In this process, the cobalt(II) fluoride tetrahydrate is placed in an alumina furnace at 400°C. After annealing for 20 minutes in air, the alumina crucible is removed and allowed to cool naturally to room temperature. The resulting products are then rinsed multiple times in deionized water and ethanol to remove any soluble impurities. Finally, the product is dried thoroughly in a vacuum oven at 60°C to obtain the 2D nanosheets sample. Furthermore, when combined with N-Heterocyclic Carbenes, Cobalt(II) fluoride tetrahydrate has been found to be highly effective as a catalyst for cross-coupling reactions between aryl Grignard reagents and aryl as well as heteroaryl halides. This reaction results in the formation of unsymmetrical biaryls.