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p-Toluenesulfonic Acid |
CAS.NO: |
104-15-4 , 6192-52-5（p-Toluenesulfonic Acid—） |
Molecular formula: |
C7H8O3S·H2O |
Molecular weight: |
190.2 |
Structural formula: |
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Implement standard: |
Q320581DKR001-2012 |
UN code: |
2585 |
Code: |
2916 3990（HS-Code） |
Appearance: |
white needle crystal |
Technical requirements: |
Item/Index |
Industrial grade |
Pharmaceutical grade |
Refining grade |
Reagent grade
（chemical pure） |
Content(C7H8O3S·H2O) ≥% |
93.0 |
95.0 |
97.0 |
98.0 |
Free acid(H2SO4) ≤% |
3.0 |
2.0 |
0.5 |
0.03 |
Moisture(crystal water)≤% |
14 |
14 |
14 |
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Iron(Fe++) ≤ppm |
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30 |
20 |
Ignition residue ≤% |
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0.2 |
0.2 |
0.02 |
Melting point(°C) |
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105-107 |
105-107 |
Alcohol solution test |
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qualified |
qualified |
qualified |
Water solution test |
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qualified |
qualified |
qualified |
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Use: |
Used in pharmaceutical and organic synthesis intermediate, dope, resin solidification agent and others |
Packing: |
Plastic weaving bag lined with film bag for industrial grade, pharmaceutical grade and refining grade. Net weight: 25kg. We can offer special packing according to demands from customers.
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