Molecular Formula | F6Mo |
Molar Mass | 209.93 |
Density | 2.3g/mLat 25°C(lit.) |
Melting Point | 17.5°C(lit.) |
Boling Point | 37°C(lit.) |
Flash Point | 35°CC |
Water Solubility | hydrolyzed in H2O; soluble anhydrous HF: 1.5 moles/1000g HF [MER06] |
Solubility | Miscible with saturated hydrocarbons, chlorinated and fluorinated hydrocarbons. |
Appearance | Liquid |
Color | Colorless |
Exposure Limit | ACGIH: TWA 2.5 mg/m3NIOSH: IDLH 250 mg/m3 |
Merck | 14,6237 |
Sensitive | Hygroscopic |
Physical and Chemical Properties | Molybdenum hexafluoride is a white cubic crystal, which is easy to absorb moisture, releases blue and white smoke in humid air, and is easy to volatilize into gas. The relative density is 2.30, melting point is 17.5 ℃, boiling point is 35 ℃, melting heat is 4.33 kJ/tool, and vaporization heat is 27.7 kJ/mol. It can be hydrolyzed in water and soluble in anhydrous hydrofluoric acid with a solubility of 1.5 mol/1000 gHF. |
Hazard Symbols | C - Corrosive![]() |
Risk Codes | 34 - Causes burns |
Safety Description | 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 the label whenever possible.) |
UN IDs | UN 3264 8/PG 2 |
WGK Germany | 3 |
RTECS | QA4681450 |
FLUKA BRAND F CODES | 10-21 |
TSCA | Yes |
HS Code | 28261990 |
Hazard Note | Corrosive |
Hazard Class | 6.1 |
Packing Group | II |
crystal structure | Cubic |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
toxicity | this product is toxic and TLV value is 5 mg/m3. |
use | used as strong fluorinating agent, film-forming material and ion doping. |
production method | synthesis method directly fluorinated cold and dry fluorine gas and metal molybdenum at 250~300 ℃, of which MoF6 crude product can be recovered at -5~5 ℃ and prepared by vacuum distillation. |