FERROUS FLUORIDE
iron difluoride
CAS: 7789-28-8
Molecular Formula: F2Fe
FERROUS FLUORIDE - Names and Identifiers
| Name | iron difluoride |
| Synonyms | FE F2 IRON FLUORIDE iron difluoride Iron difluoride FERROUS FLUORIDE Ferrous fluoride ironfluoride(fef2) Iron fluoride (FeF2) Ferrousfluoride,anhydrous |
| CAS | 7789-28-8 |
| EINECS | 232-155-7 |
| InChI | InChI=1S/2FH.Fe/h2*1H;/q;;+2/p-2 |
FERROUS FLUORIDE - Physico-chemical Properties
| Molecular Formula | F2Fe |
| Molar Mass | 93.84 |
| Density | 4,09 g/cm3 |
| Melting Point | >1000°C |
| Water Solubility | Insoluble in water. |
| Appearance | Powder |
| Specific Gravity | 4.09 |
| Color | White |
| Merck | 14,4045 |
| Storage Condition | Room Temprature |
| Stability | hygroscopic |
| Sensitive | Air Sensitive & Hygroscopic |
| MDL | MFCD00016093 |
FERROUS FLUORIDE - Risk and Safety
| 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 3260 8/PG 2 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 3 |
| TSCA | Yes |
| Hazard Note | Corrosive |
| Hazard Class | 6.1 |
| Packing Group | III |
FERROUS FLUORIDE - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Overview | metal fluoride not only can carry out lithium ion insertion and extraction reaction, but also can take place chemical conversion reaction with lithium to store energy, its discharge capacity is much higher than the traditional introduction of lithium ion intercalation/deintercalation reaction. Compared with the traditional cathode materials (LiCoO2, LiFePO4, etc.), ferrous fluoride has smaller relative molecular mass, so its theoretical specific capacity is larger; the stronger Fe-F ionic bond allows both to have a higher electrochemical potential, so ferrous fluoride has a higher theoretical specific energy density. In addition, ferrous fluoride is rich in resources, low cost, environmentally friendly, thermal stability, so it is considered to be a new generation of lithium ion battery cathode material with great research value and application prospect. Ferrous fluoride molecular weight 93.84, white diamond crystal or powder. The melting point is 1000 ° C, the boiling point is about 1100 ° C (sublimation), and the relative density is 4.0925. The tetrahydrate is a white rhomboid crystal with a relative density of 2.095. Its octahydrate is a green-blue crystal with a relative density of 4.20 and loses all crystal water when heated to 100 °c. Slightly soluble in water, insoluble in ethanol, ether and benzene, soluble in dilute hydrofluoric acid. It is stable to hydrogen at 400 ° C. And is reduced to iron by hydrogen at red heat. With sodium, aluminum and other metals, the reaction is intense, and bromine, iodine or sulfur has no obvious reaction. Preparation Method: The dry anhydrous ferric chloride is heated in the dry hydrogen fluoride gas stream to prepare amorphous ferrous fluoride, which is sublimed by heating to above 1100 ℃, or at 400 deg C with hydrogen reduction of iron fluoride. |
| Use | ferrous fluoride as a catalyst for fluorination reactions in organic chemistry. |
Last Update：2024-04-10 22:29:15
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