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P-toluene sulfonic acid

Product name :P-toluene sulfonic acid
CAS NO.:108-78-1
H.S.Code:2904100000
MF:C7H8O3SH2O
EINECS No.:203-180-0
Appearance:white powder

Technical Parameters

Item/Index

Industrial grade

Pharmaceutical grade

Refining grade

Reagent grade (chemical pure)

Content(C7H8O3S·H2O) ≥%

93.0

95.0

97.0

99.0

Free acid(H2SO4) ≤%

3.0

2.0

0.7

0.1

Moisture(crystal water)≤%

4

3

2.3

0.9 

Iron(Fe++) ≤ppm

 5030 

20

10

Ignition residue ≤%

/

0.2

0.2

0.02

Melting point(°C)

/

/

/

102-105

Alcohol solution test

/

qualified

qualified

qualified

Water solution test

qualified

qualified

qualified

qualified

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