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Merck
CN

05-4020

Chlorosulfonic acid

CP

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About This Item

Linear Formula:
ClSO3H
CAS Number:
7790-94-5
Molecular Weight:
116.52
UNSPSC Code:
12352100
PubChem Substance ID:
329748059
MDL number:
MFCD00011523

Key Documents

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InChI

1S/ClHO3S/c1-5(2,3)4/h(H,2,3,4)

SMILES string

OS(Cl)(=O)=O

InChI key

XTHPWXDJESJLNJ-UHFFFAOYSA-N

grade

CP

vapor density

4 (vs air)

vapor pressure

1 mmHg ( 25 °C), 3.3 mmHg ( 37.7 °C)

form

liquid

expl. lim.

37.7 %

availability

available only in Japan

refractive index

n20/D 1.433 (lit.)

pKa 

-6

bp

151-152 °C/755 mmHg (lit.)

density

1.753 g/mL at 25 °C (lit.)

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Related Categories

pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

Hazard Classifications

Acute Tox. 1 Inhalation - Eye Dam. 1 - Skin Corr. 1A - STOT SE 3

target_organs

Respiratory system

supp_hazards

EUH014

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
A1474
A0948
A0742

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Stuart D Chambers et al.
Journal of chromatography. A, 1218(2), 263-269 (2010-12-15)
Carbon-clad zirconia particles have been converted into ion exchange media through addition of charged latexes after covalent modification of the carbon surface. A variety of methodologies were investigated to introduce a negative charge to the carbon surface in the form
Natnael Behabtu et al.
Nature nanotechnology, 5(6), 406-411 (2010-06-01)
Graphene combines unique electronic properties and surprising quantum effects with outstanding thermal and mechanical properties. Many potential applications, including electronics and nanocomposites, require that graphene be dispersed and processed in a fluid phase. Here, we show that graphite spontaneously exfoliates
Shimona Geresh et al.
Journal of biochemical and biophysical methods, 50(2-3), 179-187 (2001-12-14)
Polysaccharides are natural polymers with a variety of properties that may be translated into significant commercial applications. A program of chemical modifications of the extracellular polysaccharides of red microalgae, such as Porphyridium sp. and Rhodella reticulata, has been undertaken by
A Nicholas G Parra-Vasquez et al.
ACS nano, 4(7), 3969-3978 (2010-07-03)
We report that chlorosulfonic acid is a true solvent for a wide range of carbon nanotubes (CNTs), including single-walled (SWNTs), double-walled (DWNTs), multiwalled carbon nanotubes (MWNTs), and CNTs hundreds of micrometers long. The CNTs dissolve as individuals at low concentrations
Fang Han et al.
International journal of biological macromolecules, 36(4), 201-207 (2005-08-17)
A polysaccharide YCP was prepared from a marine filamentous fungus Keissleriella sp. YS4108, which exhibited as a molecular weight (Mw) of 2.4x10(3) kDa and its three sulfated derivatives (YCP-SL, YCP-SM and YCP-SH) were synthesized, the degree of substitution (DS) of
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