| Identification | More | [Name]
NIOBIUM(V) FLUORIDE | [CAS]
7783-68-8 | [Synonyms]
COLUMBIUM PENTAFLUORIDE
NIOBIUM FLUORIDE
NIOBIUM PENTAFLUORIDE
NIOBIUM(V) FLUORIDE
(betab-5-11)-niobiumfluoride(nbf5
Niobium(V)fluoride,99%
Niobium(V)fluoride,99.5%
Niobium pentafluoride 99.5%
Niobium(V)pentafluoride | [EINECS(EC#)]
232-020-2 | [Molecular Formula]
F5Nb | [MDL Number]
MFCD00011129 | [Molecular Weight]
187.9 | [MOL File]
7783-68-8.mol |
| Chemical Properties | Back Directory | [Appearance]
light beige powder | [Melting point ]
72 °C | [Boiling point ]
220 °C | [density ]
3.92 | [Fp ]
≈230°C | [solubility ]
reacts with H2O; slightly soluble in CS2
chloroform | [form ]
Powder | [color ]
White to pale yellow | [Specific Gravity]
3.92 | [Water Solubility ]
Hydrolyzes in water, alcohol, and caustic solutions. Sparingly soluble in CS{2}, chloroform. Forms complexes with Lewis basesSlightly soluble in carbon disulfide and chloroform. | [Sensitive ]
Moisture Sensitive | [Merck ]
14,6558 | [CAS DataBase Reference]
7783-68-8(CAS DataBase Reference) | [EPA Substance Registry System]
Niobium fluoride (NbF5), (TB-5-11)- (7783-68-8) |
| Safety Data | Back Directory | [Hazard Codes ]
C | [Risk Statements ]
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R34:Causes burns. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S27:Take off immediately all contaminated clothing .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
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 3260 8/PG 2
| [WGK Germany ]
3
| [Hazard Note ]
Corrosive | [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
II | [HS Code ]
2826199090 |
| Hazard Information | Back Directory | [Chemical Properties]
light beige powder | [Physical properties]
Colorless monoclinic crystals; hygroscopic; density 3.293 g/cm3; melts at 72°C; vaporizes at 236°C; hydrolyzes in water forming hydrofluoric acid and fluoroniobic acid, H2NbOF5; soluble in alcohol, slightly soluble in chloroform, carbon disulfide and sulfuric acid. | [Uses]
Niobium pentafluoride is used in making other fluoro compounds of niobium. | [Uses]
Niobium(V) fluoride is used as a starting material to prepare other niobium compounds. It acts as an intermediate during the recovery of niobium metal. | [Preparation]
Niobium pentafluoride is obtained as an intermediate during the recovery of niobium metal from its ores (See Niobium). It also can be prepared by direct fluorination of niobium metal at 250 to 300°C, either by fluorine gas or anhydrous hydrofluoric acid. The pentafluoride vapors are condensed in a pyrex or quartz tube from which it is sublimed at 120°C under vacuum and collected as colorless crystals.
Also, niobium pentafluroide can be prepared by the reaction of fluorine with niobium pentachloride: 2NbCl2 + 5F2 → 2NbF5 + 5Cl2. |
|
| Company Name: |
Alfa Aesar
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| Tel: |
400-6106006 |
| Website: |
http://chemicals.thermofisher.cn |
| Company Name: |
Sigma-Aldrich
|
| Tel: |
021-61415566 800-8193336 |
| Website: |
https://www.sigmaaldrich.cn |
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