8.14725

Toluene-4-sulfonic acid monohydrate

for synthesis

• Synonym(s): Toluene-4-sulfonic acid monohydrate, p-Toluenesulfonic acid, Tosylic acid, Tosic acid, PTSA
• Empirical Formula (Hill Notation): C₇H₈O₃S · xH₂O
• CAS Number: 6192-52-5
• Molecular Weight: 172.20 (anhydrous basis)
• MDL number: MFCD00142137
• UNSPSC Code: 12352106
• EC Index Number: 203-180-0

Properties

• Quality Level: 200
• 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

Description

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

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H290 - H314 - H335 - H412
• Precautionary Statements: P234 - P260 - P273 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• 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