Home Categories Chemical Reagents p-Toluenesulfonic acid monohydrate
A7764412

p-Toluenesulfonic acid monohydrate , ACS,≥98.5% , 6192-52-5

Synonym(s):
p-Toluenesulfonic acid monohydrate;p-Toluenesulfonic Acid, Monohydrate;1-Hydrate;p-Toluenesulfonic acid, Tosylic acid, Tosic acid, PTSA;Toluene-4-sulfonic acid monohydrate

CAS NO.:6192-52-5

Empirical Formula: C7H10O4S

Molecular Weight: 190.22

MDL number: MFCD00142137

EINECS: 203-180-0

Pack Size Price Stock Quantity
100G RMB70.40 In Stock
500G RMB182.40 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 96-99 °C(lit.)
Boiling point: 140°C 20mm
Density  1,24 g/cm3
vapor density  5.9 (vs air)
refractive index  1,382-1,384
Flash point: 180 °C
storage temp.  Store at +5°C to +30°C.
solubility  H2O: 0.1 g/mL, clear
Colour Index  42655
form  Solid
color  White to pink
PH 1 (650g/l, H2O, 20℃)(anhydrous substance)
Water Solubility  soluble
Sensitive  Hygroscopic
Merck  14,9533
BRN  3568023
Stability: Stable. Incompatible with strong oxidizing agents, strong bases, most common metals. Protect from moisture.
InChIKey KJIFKLIQANRMOU-UHFFFAOYSA-N

Description and Uses

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.

Safety

Symbol(GHS) 
GHS05,GHS07
Signal word  Danger
Hazard statements  H290-H314-H335-H412
Precautionary statements  P234-P260-P273-P280-P303+P361+P353-P305+P351+P338
Hazard Codes  Xi,C
Risk Statements  36/37/38-34-37
Safety Statements  26-37-45-36/37/39
RIDADR  UN 2585 8/PG 3
WGK Germany  -
RTECS  XT6300000
3
Autoignition Temperature 600 °C
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  29041000
Toxicity LD50 orally in Rabbit: 2570 mg/kg

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