Fluorosulfuric acid
Names
[ CAS No. ]:
7789-21-1
[ Name ]:
Fluorosulfuric acid
[Synonym ]:
Fluorosulfonic acid
Fluorosulphuric acid
sulfofluoride
Fluorosulfuric acid (HSO3F)
MFCD00066174
Monofluorosulfuric acid
epoxysulfonyl fluoride
perfluorosulfonic acid
EINECS 232-149-4
trifluoromethyl phosphonic acid anhydride
fluosulfuric acid
fluorosulfuric acid
Fluosulfonic acid
Fluorosulphonic acid
Fluorosulfuric acid (HSO)
Sulfurofluoridic acid
Chemical & Physical Properties
[ Density]:
1.9±0.1 g/cm3
[ Boiling Point ]:
165.5±9.0 °C at 760 mmHg
[ Melting Point ]:
−87.3 °C(lit.)
[ Molecular Formula ]:
FHO3S
[ Molecular Weight ]:
100.070
[ Exact Mass ]:
99.963043
[ PSA ]:
62.75000
[ LogP ]:
-0.16
[ Vapour density ]:
3.5 (vs air)
[ Vapour Pressure ]:
0.9±0.6 mmHg at 25°C
[ Index of Refraction ]:
1.392
[ Stability ]:
Stable. May corrode glass. Incompatible with many metals, bases.
MSDS
Toxicological Information
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- LP0715000
- CHEMICAL NAME :
- Fluorosulfuric acid
- CAS REGISTRY NUMBER :
- 7789-21-1
- LAST UPDATED :
- 199710
- DATA ITEMS CITED :
- 8
- MOLECULAR FORMULA :
- F-H-O3-S
- MOLECULAR WEIGHT :
- 100.07
- WISWESSER LINE NOTATION :
- H2 S-O3 F
Safety Information
[ Symbol ]:
GHS05, GHS07
[ Signal Word ]:
Danger
[ Hazard Statements ]:
H314-H332
[ Precautionary Statements ]:
P280-P305 + P351 + P338-P310
[ Personal Protective Equipment ]:
Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
[ Hazard Codes ]:
C,T
[ Risk Phrases ]:
R20
[ Safety Phrases ]:
S26-S45
[ RIDADR ]:
UN 1777 8/PG 1
[ WGK Germany ]:
1
[ RTECS ]:
LP0715000
[ Packaging Group ]:
I
[ Hazard Class ]:
8
Synthetic Route
Precursor & DownStream
Precursor
DownStream
Articles
Org. Lett. 8(24) , 5617-20, (2006)
The first synthesis of sulfonamide and sulfonate analogues of a sulfated carbohydrate in which the ester oxygen of the sulfate is replaced with a CHF or CF2 group is reported. This was accomplished by...
Tailoring of interfacial mechanical shear strength by surface chemical modification of silicon microwires embedded in Nafion membranes.ACS Nano 9 , 5143-53, (2015)
The interfacial shear strength between Si microwires and a Nafion membrane has been tailored through surface functionalization of the Si. Acidic (-COOH-terminated) or basic (-NH2-terminated) surface-b...
Perfluoro Allyl fluorosulfate (FAFS): a versatile building block for new fluoroallylic compounds.Molecules 16 , 6512, (2011)
In this study we will present and discuss both the synthesis of CF(2) = CFCF(2)OSO(2)F (perfluoroallyl fluorosulfate, FAFS), focusing in particular on the important role of C(3)F(6)/SO(3) ratio, react...