CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Fluorosulfonic acid appears as a fuming liquid. Boiling point 163 °C. Density 1.73 g / cm3. Corrosive to metals and to tissue. Both very short contact and the fumes can cause severe painful burns. Used as a catalyst in organic synthesis, in electroplating and as a fluorinating agent. |
|---|---|
| Color/Form | COLORLESS LIQUID; REDDISH-BROWN COLOR WITH ACETONE |
| Boiling Point | 324.9 °F at 760 mmHg (USCG, 1999) |
| Melting Point | -125.1 °F (USCG, 1999) |
| Solubility | SOL IN NITROBENZENE |
| Density | 1.73 at 77 °F (USCG, 1999) - Denser than water; will sink |
| Vapor Density | Relative vapor density (air = 1): 3.4 |
| Vapor Pressure | 2.5 [mmHg] |
| Stability/Shelf Life | FUMES IN MOIST AIR; STABLE TO 900 °C |
| Decomposition | SEE FLUOSULFONATES. ...WHEN HEATED TO DECOMPOSITION, THEY EMIT HIGHLY TOXIC FUMES OF FLUORIDES AND OXIDES OF SULFUR. ... /FLUOSULFONATES/ |
| Corrosivity | HIGHLY CORROSIVE |
| pH | CONSIDERABLY MORE ACIDIC THAN CONCN H2SO4 |
| Chemical Classes | Other Classes -> Organic Acids |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation H332:Acute toxicity,inhalation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. 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
| Molecular Weight | 100.07 g/mol |
|---|---|
| XLogP3 | -0.3 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 0 |
| Exact Mass | 99.96304323 g/mol |
| Monoisotopic Mass | 99.96304323 g/mol |
| Topological Polar Surface Area | 62.8 Ų |
| Heavy Atom Count | 5 |
| Formal Charge | 0 |
| Complexity | 92.6 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Fluorosulfonic acid appears as a fuming liquid. Boiling point 163 °C. Density 1.73 g / cm3. Corrosive to metals and to tissue. Both very short contact and the fumes can cause severe painful burns. Used as a catalyst in organic synthesis, in electroplating and as a fluorinating agent.