Merck
All Photos(1)

8.00468

Sigma-Aldrich

Benzenesulfonic acid

for synthesis

Synonym(s):
Benzenesulfonic acid, Phenylsulfonic acid
Empirical Formula (Hill Notation):
C6H6O3S
CAS Number:
Molecular Weight:
158.18
MDL number:
EC Index Number:
202-638-7

Quality Level

assay

≥97.0% (acidimetric)

form

solid

potency

1175 mg/kg LD50, oral (Rat)

pH

2 (20 °C in H2O, saturated solution)

bp

171 °C/0.13 hPa

mp

43 °C

transition temp

flash point >100 °C

solubility

930 g/L

density

1.32 g/cm3 at 47 °C

storage temp.

2-30°C

InChI

1S/C6H6O3S/c7-10(8,9)6-4-2-1-3-5-6/h1-5H,(H,7,8,9)

InChI key

SRSXLGNVWSONIS-UHFFFAOYSA-N

Analysis Note

Assay (acidimetric): ≥ 97.0 %
Water (K. F.): ≤ 2.3 %
Sulfuric acid: ≤ 0.7 %
Identity (IR): passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

212.0 °F

Flash Point(C)

> 100 °C

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