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 Products >> P-toluene sulfonic acid (PTS) series
Molecular formula:CH8O3S·H2O M=190.22
Properties: white needle-like or powdery crystal
| Index name |
Analytic pure (AR) |
Chemical pure (CP) |
Refined grade |
Special grade |
Industrial top-grade |
Industrial grade |
Appearance |
white needle-like or powdery crystal |
white needle-like or powdery crystal |
white needle-like or powdery crystal |
white needle-like or powdery crystal |
powdery crystal |
red crystal |
Assay %≥ |
99 |
98 |
98 |
97 |
95 |
93 |
Sulfate ( free acid SO4)≤ |
0.01 |
0.1 |
0.1 |
0.3 |
2.0 |
3.5 |
Melting point |
103℃~105℃ |
103℃~105℃ |
103℃~105℃ |
103℃~105℃ |
103℃~105℃ |
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NaCl≤ |
0.01% |
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Residue on ignition |
≤0.1% |
≤0.2% |
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Dissolved test in water |
qualified |
qualified |
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Dissolved test in alcohol |
qualified |
qualified |
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Packing |
10kg/box (plastic lining) |
10kg/box (plastic lining) |
25kg/bag (double-layer) |
25kg/bag (double-layer) |
25kg/bag (double-layer) |
25kg/bag (double-layer) |
Uses: widely used as stabilizer in the synthesis of drug and pesticide or polymerization, catalyst of organic synthesis (ester), intermediate of coating and resin curing agent.
Special grade P-toluene sulfonic acid (PTS) ( for coating and ink) has excellent performance: :fast curing speed and the the color of paint film is not changed.
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