Fluorosulfuric acid

Suppliers

Names

[ 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

Click to get detail 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

Click to get detail synthetic route

Precursor & DownStream

Precursor

HYDROFLUORIC ACID
Tetrafluoroethanebeta-sultone
trifluoro-3-trifluoromethyl-1,2-oxathietane-2,2-dioxide
disulphuric acid
bis(fluorosulfuryl) peroxide
2,2,2-trifluoroethanethioic S-acid
Sulfur trioxide
fluorosulfonic acid
Chlorosulfonic acid
Hydrogen Sulfate

DownStream

Propionyl fluoride
p-toluenesulfonyl fluoride
DISULFURYL FLUORIDEDISCONTINUED WHEN STOCK SOLD 4/10/00
2,2-Difluoroacetyl chloride
Phosphoryl fluoride
tetrabromophosphonium ion
Bromine
fluorosulfonic acid
imido-bis(sulfuric acid) difluoride
Hydrochloric acid

Articles

Synthesis of alpha-fluorosulfonate and alpha-fluorosulfonamide analogues of a sulfated carbohydrate.

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...