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8.14725

Sigma-Aldrich

Toluene-4-sulfonic acid monohydrate

for synthesis

Synonym(s):

Toluene-4-sulfonic acid monohydrate, p-Toluenesulfonic acid, Tosylic acid, Tosic acid, PTSA

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About This Item

Empirical Formula (Hill Notation):
C7H8O3S · xH2O
CAS Number:
Molecular Weight:
172.20 (anhydrous basis)
MDL number:
UNSPSC Code:
12352106
EC Index Number:
203-180-0
NACRES:
NA.22

Quality Level

form

crystals

autoignition temp.

600 °C

potency

2570 mg/kg LD50, oral (Rat)

pH

1 (20 °C, 650 g/L in H2O, anhydrous substance)

bp

140 °C/27 hPa

mp

56 °C (Elimination of water of crystallisation)

transition temp

flash point 180 °C

solubility

750 g/L

bulk density

510 kg/m3

storage temp.

2-30°C

InChI

1S/C7H8O3S.H2O/c1-6-2-4-7(5-3-6)11(8,9)10;/h2-5H,1H3,(H,8,9,10);1H2

InChI key

KJIFKLIQANRMOU-UHFFFAOYSA-N

Application

  • Synthesis and characterization of toluene sulfonic acid (tsa) doped polypyrrole nanoparticles: Effect of dopant concentrations: This study investigates the effect of various concentrations of para-toluene sulfonic acid on the properties of polypyrrole nanoparticles, providing insights into the optimization of conductive polymers for applications in electronic devices and sensors (Alva et al., 2016).

Analysis Note

Assay (acidimetric, calc. on anhydrous substance): ≥ 98.0 %
Water (K. F.): 8.0 - 12.0 %
Identity (IR): passes test

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Aquatic Chronic 3 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1C - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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