Tin(iv) Fluoride
Synonym(s):Tin tetrafluoride
- CAS NO.:7783-62-2
- Empirical Formula: F4Sn
- Molecular Weight: 194.7
- MDL number: MFCD00042541
- EINECS: 232-016-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-08-28 13:53:26
What is Tin(iv) Fluoride?
Chemical properties
Stannic Fluoride or tin(iv) fluoride, is an inorganic tin fluoride compound, and generally a off-white powder. It is hygroscopic and has a melting point of 700 C or higher, well above the melting points of other tin(iv) halides.
The Uses of Tin(iv) Fluoride
Friedel-Crafts catalyst.
The Uses of Tin(iv) Fluoride
It is used as Friedel-Crafts catalyst.
Preparation
Stannic fluoride can be prepared from the reaction of fluorine, chlorine trifluoride, or bromine trifluoride with tin(II) or tin(IV) compounds. It acts as a Lewis acid to form many complexes. It is used in the manufacture of glasses.
Reactions
Stannic fluoride combines with ammonia and other bases, and also with alkali and other fluorides to form stannifluorides of the type M2SnF6. Stannic fluoride forms with ammonia at 43° C. the white solid SnF4.NH3, which can be heated to 400° C. with loss of very little ammonia; the compound SnF4.2NH3 is formed when stannic fluoride and ammonia are heated in a sealed tube at 120°-130° C. Both compounds dissolve in water, but their solutions gradually decompose. Aniline, pyridine, and quinoline also form additive compounds with stannic fluoride.
Properties of Tin(iv) Fluoride
Melting point: | 705°C (subl.) |
Boiling point: | 705°C |
Density | 4,78 g/cm3 |
solubility | reacts with H2O |
form | Powder |
Specific Gravity | 4.78 |
color | white |
Water Solubility | hydrolyzes in H2O [MER06] |
Sensitive | Moisture Sensitive |
Merck | 14,8776 |
Exposure limits | ACGIH: TWA 2 mg/m3 NIOSH: IDLH 100 mg/m3; TWA 2 mg/m3 |
CAS DataBase Reference | 7783-62-2(CAS DataBase Reference) |
Safety information for Tin(iv) Fluoride
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. |
Computed Descriptors for Tin(iv) Fluoride
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