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Specifications of Pyridine sulfur trioxide丨26412-87-3
|
Parameter |
Specification |
|
Appearance |
White to off-white crystal powder |
|
Assay |
98% min |
|
Melting Point (MP) |
150 to 165°C |
|
Loss in Weight on Drying |
0.1% max |
Transport Information of Pyridine sulfur trioxide丨26412-87-3
|
Parameter |
Specification |
|
UN Number |
3261 |
|
Class |
8 |
|
Packing Group |
II |
|
H.S. Code |
2933990099306 |
|
Stability & Reactivity |
The product is chemically stable under standard ambient conditions (room temperature). |
|
Storage |
Tightly closed. Keep away from heat and sources of ignition. |
|
Condition to Avoid |
water, air and high temperature |
|
Package |
Manufacturing Information of Pyridine sulfur trioxide丨26412-87-3
|
Parameter |
Specification |
|
Capacity |
1,500MT/year |
|
Frequency |
|
|
Main Export Countries |
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|
Capacity/Batch |
|
|
Experience |
Production since 2001 |
|
Stock |
Applications of Pyridine sulfur trioxide丨26412-87-3
Sulfonation Reagent
Pyridine sulfur trioxide丨26412-87-3 is a widely used sulfonation reagent in organic synthesis. It facilitates the introduction of sulfonic acid (-SO₃H) groups into organic molecules, which is crucial in the production of pharmaceuticals, dyes, and surfactants.
Pharmaceutical Industry
In drug synthesis, it is utilized to modify active pharmaceutical ingredients (APIs), improving their solubility and bioavailability. Many sulfonated compounds exhibit enhanced pharmacological properties.
Chemical and Polymer Industry
It is used in polymer modification to introduce sulfonic acid groups, improving the properties of materials such as ion-exchange resins and conductive polymers.
Dye and Pigment Manufacturing
Pyridine sulfur trioxide is involved in the synthesis of sulfonated dyes and pigments, enhancing their water solubility and stability for textile and industrial applications.
Surfactants and Detergents
The sulfonation of surfactants using this reagent leads to the production of anionic detergents, which have high foaming and emulsifying properties, making them essential in household and industrial cleaning products.
Benefits of Pyridine sulfur trioxide丨26412-87-3
Efficient Sulfonation Agent
Pyridine sulfur trioxide丨26412-87-3 provides high selectivity and efficiency in sulfonation reactions, making it a preferred choice over traditional sulfur trioxide or chlorosulfonic acid.
Improved Solubility and Reactivity
Sulfonated products derived from this reagent often exhibit enhanced water solubility and chemical reactivity, increasing their applications in pharmaceuticals and materials science.
Safer and More Controlled Reactivity
Compared to free sulfur trioxide, the pyridine complex provides a more controlled reaction, reducing the risks of excessive reactivity and unwanted byproducts.
Conclusion
Pyridine sulfur trioxide is an essential sulfonation reagent used in the synthesis of pharmaceuticals, dyes, surfactants, and polymers. Its efficiency, improved control in reactions, and broad industrial applications make it a valuable tool in organic and industrial chemistry.
