| Identification | More | [Name]
Cobalt(II) fluoride | [CAS]
10026-17-2 | [Synonyms]
Cobalt(Ⅱ)fluoride
COBALT DIFLUORIDE
COBALT FLUORIDE
COBALT FLUORIDE PINK
COBALT(II) FLUORIDE
COBALTOUS FLUORIDE
cobaltfluoride(cof2)
Cobaltousfluoride,dihydrate
Cobalt(II) fluoride anhydrous
COBALT(II) FLUORIDE, POWDER
COBALT(II) FLUORIDE ANHYDROUS POWDER &
Cobalt(Ⅱ）fluorde
Cobaltdifluoride,anhydrous
Cobalt(II)fluoride,anhydrous,99%
cobalt(ii) fluoride, ultra dry
Cobalt(II) fluoride anhydrous 99%
cobaltfluoride,anhydrous
COBALT(II) FLUORIDE, ANHHYDROUS
Cobalt(II) fluoride, ultra dry, 99.99% (metals basis)
Cobalt(II) difluoride | [EINECS(EC#)]
233-061-9 | [Molecular Formula]
CoF2 | [MDL Number]
MFCD00010941 | [Molecular Weight]
96.93 | [MOL File]
10026-17-2.mol |
| Chemical Properties | Back Directory | [Appearance]
Rose-red crystals or powder. Soluble in cold
water and hydrofluoric acid. Decomposes in hot
water. Ammine complexes can be prepared from
the hydrate. | [Melting point ]
1200 °C | [Boiling point ]
1400 °C | [density ]
4.46 g/mL at 25 °C
| [solubility ]
soluble in acid solutions | [form ]
powder
| [color ]
Pink | [Specific Gravity]
4.46 | [Water Solubility ]
Soluble in water, alcohol and acetone. | [Sensitive ]
Hygroscopic | [Merck ]
14,2440 | [Exposure limits]
ACGIH: TWA 0.02 mg/m3; TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3 | [Stability:]
hygroscopic | [CAS DataBase Reference]
10026-17-2(CAS DataBase Reference) | [EPA Substance Registry System]
10026-17-2(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
T,C | [Risk Statements ]
R25:Toxic if swallowed.
R34:Causes burns. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
UN 2923 8/PG 3
| [WGK Germany ]
3
| [RTECS ]
GG0770000
| [F ]
21 | [Hazard Note ]
Toxic | [TSCA ]
Yes | [HazardClass ]
6.1 | [PackingGroup ]
III | [HS Code ]
28261990 | [Safety Profile]
Poison by ingestion.
When heated to decomposition it emits
toxic fumes of Co and F-. | [Hazardous Substances Data]
10026-17-2(Hazardous Substances Data) |
| Hazard Information | Back Directory | [General Description]
Violet to red solid. Sinks and mixes slowly with water. | [Reactivity Profile]
COBALT FLUORIDE(10026-17-2) is a toxic, light brown crystalline material, when exposed to water COBALT FLUORIDE(10026-17-2) forms highly corrosive hydrofluoric acid. When heated to decomposition COBALT FLUORIDE(10026-17-2) emits toxic fumes of metallic cobalt and fluorides [Lewis, 3rd ed., 1993, p. 344]. | [Air & Water Reactions]
Mixes slowly with water. | [Hazard]
Highly toxic. | [Health Hazard]
INHALATION: Inhalation of dust may cause pulmonary symptoms. EYES: Irritation. SKIN: Skin rashes, dermatitis. INGESTION: Nausea and vomiting caused by local irritation. | [Chemical Properties]
Rose-red crystals or powder. Soluble in cold
water and hydrofluoric acid. Decomposes in hot
water. Ammine complexes can be prepared from
the hydrate. | [Physical properties]
Red tetragonal crystal; density 4.46 g/cm3; melts at 1,127°C; vaporizes around 1,400°C; sparingly soluble in water; soluble in warm mineral acids; decomposes in boiling water. Tetrahydrate is red orthogonal crystal; density 2.22 g/cm3; decomposes on heating; soluble in water; di- and trihydrates are soluble in water. | [Uses]
Catalyst for organic reactions. | [Uses]
Cobalt(II) fluoride can be used as a catalyst to alloy metals. It is also used for optical deposition, of which it tremendously improves optical quality. The compound may be used in dental care. |
| Questions And Answer | Back Directory | [Preparation]
Cobalt(II) fluoride is prepared by heating anhydrous cobalt(II) chloride or oxide in a stream of hydrogen fluoride:
CoCl2 + 2HF → CoF2 + 2HCl
CoO + 2HF → CoF2 + 2H2O
Also, cobalt(II) fluoride can be prepared as a tetrahydrate, CoF2•4H2O by dissolving cobalt(II) hydroxide in hydrofluoric acid. The tetrahydrate is then dehydrated to anhydrous fluoride. Elemental fluorine combines with cobalt at 450°C forming mixtures of cobalt(II)–and cobalt(III) fluorides.
|
|
| Company Name: |
Alfa Aesar
|
| Tel: |
400-6106006 |
| Website: |
http://chemicals.thermofisher.cn |
| Company Name: |
Energy Chemical
|
| Tel: |
021-021-58432009 400-005-6266 |
| Website: |
http://www.energy-chemical.com |
|