Skip to Content
Merck
All Photos(1)

Documents

Safety Information

8.00220

Sigma-Aldrich

Chlorosulfonic acid

for synthesis

Synonym(s):

Chlorosulfonic acid, Sulfuric chlorohydrin, Chlorosulfuric acid

Sign Into View Organizational & Contract Pricing


About This Item

CAS Number:
Molecular Weight:
116.53
MDL number:
UNSPSC Code:
12352100
EC Index Number:
232-234-6
NACRES:
NA.22

vapor pressure

3.08 hPa ( 20 °C)

Quality Level

Assay

≥97% (acidimetric)

form

liquid

pH

<1 (20 °C in H2O, Aqueous solution; rigorous decomposition)

pKa 

-6

bp

152 °C/1013 hPa (decomposition)

mp

-80 °C

density

1.75 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

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

InChI key

XTHPWXDJESJLNJ-UHFFFAOYSA-N

General description

for synthesis

Application

Chlorosulfonic acid for synthesis. CAS 7790-94-5, pH < - 1 (H₂O, 20 °C) Aqueous solution,(rigorous decomposition).

Analysis Note

Assay (acidimetric)≥ 97.0 %Free SO₃≤ 1.0 %

Pictograms

CorrosionSkull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Target Organs

Respiratory system

Supplementary Hazards

Storage Class Code

6.1B - Non-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 Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Deleterious substance

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service