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p-Toluenesulfonic acid Structure

p-Toluenesulfonic acid

Chemical Properties

Melting point 106~107℃
Boiling point 116 °C
Density  1.07
vapor pressure  69.8Pa at 20℃
refractive index  1.3825-1.3845
Flash point 41 °C
storage temp.  Inert atmosphere,Room Temperature
solubility  DMSO (Slightly), Methanol (Slightly)
form  Solution
pka -0.43±0.50(Predicted)
color  Clear colorless to light yellow
Odor pungent odor
Viscosity 166.2mm2/s
Water Solubility  soluble
LogP 0.41 at 25℃
CAS DataBase Reference 104-15-4(CAS DataBase Reference)
Indirect Additives used in Food Contact Substances 4-METHYLBENZENESULFONIC ACID
FDA 21 CFR 175.105
FDA UNII QGV5ZG5741
NIST Chemistry Reference P-toluene sulfonic acid(104-15-4)
EPA Substance Registry System 4-Methylbenzenesulfonic acid (104-15-4)

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P
Hazard Codes  C
Risk Statements  34-10
Safety Statements  45-26-23
RIDADR  2585
HazardClass  8
PackingGroup  III
HS Code  29163990
Hazardous Substances Data 104-15-4(Hazardous Substances Data)
NFPA 704:
1
3 2
W

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