Name: P-Toluenesulfonic Acid, Monohydrate ACS Reagent 98.5% 500 gram | True Meds
Price: 161 USD
Availability: InStock

$161

Part Number:MIL-402885-500G
Lead Time:2-4 weeks
Quantity:each
Size:500 grams
Style:chemical

Category: ACS Grade Chemicals

Description
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P-Toluenesulfonic Acid Monohydrate ACS Reagent ≥98.5% 500 Gram

CAS Number 6192-52-5
Linear Formula CH3C6H4SO3H · H2O
Molecular Weight 190.22
Beilstein/REAXYS Number 3568023
EC Number 203-180-0
MDL number MFCD00142137
PubChem Substance ID 24865132
NACRES NA.21

Quality Level	200
Grade	ACS reagent
Vapor Density	5.9 (vs air)
Assay	≥98.5%
clarity of soln	passes test
Impurities	9.5-11.5% water
ign. residue	≤0.1%
mp	103-106°C (lit.)
solubility	H2O: 10g + 50 mL, clear, colorless
anion traces	sulfate (SO42-): ≤0.3%
cation traces	Fe: ≤0.01%
	Na: ≤0.002%
	heavy metals (as Pb): ≤0.001%

General description

p-Toluenesulfonic acid monohydrate, an oxonium salt, is an inexpensive and easy to handle organic catalyst used in organic synthesis. The study of its crystalline structure shows that it is monoclinic with P21/c space group. Its solubility in aqueous sulfuric acid solutions has been studied.

Application

p-Toluenesulfonic acid monohydrate (p-TsOH·H2O) may be used as a catalyst in the synthesis of the following:
• Unsymmetrical benzils.
• Highly substituted piperidines.
• 1,3,5-Trisubstituted benzenes by trimerization of alkynes.
• Triazoloquinazolinone and benzimidazoquinazolinone derivatives.
• 1,3,5-Trisubstituted pyrazoles derivatives.
• Selenated ketene dithioacetals.

GHS05, GHS07

Signal word Danger
Hazard statements H290-H314-H335
Precautionary statements P260-P280-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338
Personal Protective Equipment dust mask type N95 (US), Eyeshields, Faceshields, Gloves
RIDADR UN 2585PSN2 8 / PGIII
WGK Germany 1