NITROSONIUM TETRAFLUOROBORATE
Synonym(s):Nitrosonium tetrafluoroborate
- CAS NO.：14635-75-7
- Empirical Formula: BF4H2NO
- Molecular Weight: 118.83
- MDL number: MFCD00011433
- EINECS: 238-679-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:25:58
What is NITROSONIUM TETRAFLUOROBORATE?
Chemical properties
white crystals or crystalline powder
The Uses of NITROSONIUM TETRAFLUOROBORATE
In the preparation of diazonium fluoborates.
The Uses of NITROSONIUM TETRAFLUOROBORATE
Nitrosyl tetrafluoroborate is an efficient nitrosating and diazotizing agent. It reacts with alcohols and secondary amines to yield alkyl nitrites and nitrosamines, respectively. It reacts with primary amines to yield diazonium tetrafluoroborates. NOBF4 is also a mild oxidant and commonly used for single electron transfer oxidation.
The Uses of NITROSONIUM TETRAFLUOROBORATE
Nitrosonium tetrafluoroborate is a nitrosating agent and oxidizer used in organic synthesis. It is also used to convert arylamines directly to diazonium tetrafluoroborates, which undergo the Balz-Schiemann reaction in situ to give high yields of aryl fluorides. Further, it is used as a catalyst for iodination of aromatics by iodide ion with air as oxidant, conversion of secondary amines to nitrosamines and in deamination of primary amides. It is involved in the conversion of arylhydrazines to azides. In addition to this, it reacts with ferrocene to prepare ferrocenium tetrafluoroborate.
Properties of NITROSONIUM TETRAFLUOROBORATE
| Melting point: | 250 °C |
| Boiling point: | 250°C 0,01mm |
| Density | 2.185 |
| Flash point: | 250°C/0.01mm subl. |
| storage temp. | 2-8°C |
| solubility | Soluble in acetonitrile. |
| form | Crystals or Crystalline Powder |
| color | White |
| Specific Gravity | 2.185 |
| Sensitive | Hygroscopic |
| Merck | 14,6649 |
| Stability: | Hygroscopic, Moisture Sensitive |
| InChI | InChI=1S/BF4.H2NO/c2-1(3,4)5;1-2/h;1H2/q-1;+1 |
| CAS DataBase Reference | 14635-75-7(CAS DataBase Reference) |
| EPA Substance Registry System | Borate(1-), tetrafluoro-, nitrosyl (14635-75-7) |
Safety information for NITROSONIUM TETRAFLUOROBORATE
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for NITROSONIUM TETRAFLUOROBORATE
| InChIKey | CYLOZTYJBXHMJA-UHFFFAOYSA-N |
| SMILES | [NH2+]=O.[B+3]([F-])([F-])([F-])[F-] |
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