Sodium 1-heptanesulfonate
CAS 22767-50-6
EC 245-210-5
Formula C7H16O3S.Na
MW 202.25 g/mol
Surfactants Personal Care & CosmeticsTextile, Leather & PaperPrinting & PackagingPharmaceuticals & Healthcare Emulsification & DispersionCleaning & DegreasingpH Regulation & BufferingCatalysis
Description
Sodium 1-heptanesulfonate (CAS 22767-50-6, EC 245-210-5) is an anionic surfactant supplied as a crystalline powder or flakes, also referenced as sodium heptylsulfonate or sodium n-heptylsulfonate. It carries no assigned E-code and is identified under HS code 29041000.
In pharmaceutical HPLC, it functions as an ion-pairing reagent, binding to basic analytes in the mobile phase to improve column retention and peak resolution. In textile and leather processing, it acts as a wetting and dispersing agent, reducing interfacial tension to drive uniform dye penetration into fibrous substrates. It also serves as a phase-transfer catalyst in select organic synthesis steps.
This material is available in technical and high-purity grades, with select lots meeting Ph.Eur. or FCC specifications for pharmaceutical and food-contact applications. It is subject to REACH registration requirements within the EU. Standard packaging formats include 25 kg bags and fiber drums.
In pharmaceutical HPLC, it functions as an ion-pairing reagent, binding to basic analytes in the mobile phase to improve column retention and peak resolution. In textile and leather processing, it acts as a wetting and dispersing agent, reducing interfacial tension to drive uniform dye penetration into fibrous substrates. It also serves as a phase-transfer catalyst in select organic synthesis steps.
This material is available in technical and high-purity grades, with select lots meeting Ph.Eur. or FCC specifications for pharmaceutical and food-contact applications. It is subject to REACH registration requirements within the EU. Standard packaging formats include 25 kg bags and fiber drums.
Physical Properties
| Melting Point | >300 °C(lit.) |
| Density | 1.017 g/cm |
| Appearance | White crystalline powder |
| Color | White |
| Form | Crystalline Powder of Flakes |
| Water Solubility | soluble |
| pH | 5.5-7.5 (100g/l, H2O, 20℃) |
Safety & Handling (Learn More)
Warning GHS07
H
H315H319H335
P
P261P264P271P280P319P321P405P501P264+P265P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 29041000 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
Sodium Heptane-1-Sulfonate1-Heptanesulfonic acid sodium saltSodium heptylsulfonate1-HEPTYLSODIUMSULFONATESodium heptanesulfonateSodium n-heptylsulfonate1-HEPTANESULFONATE, SODIUMHeptylsulfonic acid sodium salt
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Raw Materials
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