Product Description of Sodium Dodecyl Sulfate CAS#151-21-3
Sodium dodecyl sulfate (SDS), with the chemical formula C₁₂H₂₅NaO₄S, is a highly effective anionic surfactant that is readily soluble in water. It is widely recognized for its excellent emulsifying, foaming, and wetting properties.
SDS appears as a white crystalline powder and is extensively used in the formulation of detergents, cleaning products, and personal care items. It also plays a key role in biochemical applications, particularly as a denaturing agent in protein electrophoresis.
The product has a molecular weight of approximately 288.4 g/mol, high water solubility, a critical micelle concentration (CMC) of around 8 mM, and a melting point above 200°C.
For optimal stability, it should be stored in tightly sealed containers, protected from light and moisture, and maintained at 2–8°C. Due to its potential to cause irritation, appropriate safety precautions and protective equipment should be used during handling.
Sodium dodecyl sulfate Chemical Properties
| Melting point | 204-207 °C (lit.) |
| density | 1.03 g/mL at 20 °C |
| FEMA | 4437 | SODIUM LAURYL SULFATE |
| Fp | >100°C |
| storage temp. | 2-8°C |
| solubility | H2O: 0.1 M, clear to nearly clear, colorless to slightly yellow |
| form | Powder or Crystals |
| color | White to pale yellow |
| PH | 6-9 (10g/l, H2O, 20℃) |
| Odor | Slight fatty odour |
| PH Range | 7.2 |
| Water Solubility | ca. 150 g/L (20 ºC) |
| λmax | λ: 260 nm Amax: 0.3 |
| λ: 280 nm Amax: 0.2 | |
| Merck | 148636 |
| BRN | 3599286 |
| InChIKey | DBMJMQXJHONAFJ-UHFFFAOYSA-M |
| LogP | 1.6 |
| CAS DataBase Reference | 151-21-3(CAS DataBase Reference) |
| EPA Substance Registry System | Sodium lauryl sulfate (151-21-3) |
Safety Information
| Hazard Codes | F,Xn,Xi |
| Risk Statements | 36/37/38-36/38-22-11-21/22-42-41-20/21/22-37/38 |
| Safety Statements | 26-36/37-36/37/39-36-22-39 |
| RIDADR | UN 2926 4.1/PG 2 |
| WGK Germany | 2 |
| RTECS | WT1050000 |
| F | 3 |
| TSCA | Yes |
| HazardClass | 4.1 |
| PackingGroup | III |
Company Profile
Furuida (Jinan) Chemical Technology Co., Ltd. is a fine chemical company in Shandong, China, covering R&D, production, sales, and global service. Focused on advanced chemical materials, it follows three rules: honest business, strict quality, and lasting service. Innovation is practiced, not just claimed, and quality is checked at every stage. This approach helps Furuida enter new markets, improve operations, and earn buyer trust.
A skilled team in international trade and technical support drives the company, backed by a mature global supply system that keeps it reliable and responsive. Annual sales exceed RMB 600 million, with long-term partnerships built with over 5,000 industrial buyers across Asia, Europe, Africa, and Oceania. This wide reach has created strong customer loyalty and broad industry recognition.
Furuida's products include pharmaceutical intermediates, food additives, electroplating chemicals, water treatment agents, dye auxiliaries, functional new materials, titanium compounds, metal salts, catalysts, and surfactants. They serve pharmaceuticals, electronics, coatings, rubber and plastics, specialty chemicals, and water treatment. From this base, Furuida provides global customers with consistent, fairly priced products and one-stop solutions that adapt to market needs.
