Product Details
Products Description of Sodium dodecyl sulfate CAS#151-21-3
This sodium dodecyl sulfate product has a purity of at least 99%, appearing as a white crystalline powder with a mild characteristic smell. It melts at 206–207°C and decomposes when heated to boiling. Its vapor pressure at 25°C is negligible, and the relative density at 20°C is 1.03. It dissolves readily in water, is slightly soluble in maleic-anhydride.html">material/ethanol.html">ethanol, and does not dissolve in chloroform. The product remains stable under proper storage but is incompatible with cationic surfactants and lead salts.
Parameters
| Item | Value |
| Melting point | 204-207 °C (lit.) |
| bulk density | 490-560kg/m3 |
| 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 |
| Odor | Slight fatty odour |
| PH | 6-9 (10g/l, H2O, 20℃) |
| PH Range | 7.2 |
| biological source | synthetic (organic) |
| Water Solubility | ca. 150 g/L (20 ºC) |
| λmax | λ: 260 nm Amax: 0.3 λ: 280 nm Amax: 0.2 |
| Merck | 14,8636 |
| BRN | 3599286 |
| InChIKey | DBMJMQXJHONAFJ-UHFFFAOYSA-M |
| LogP | 1.600 |
| CAS DataBase Reference | 151-21-3(CAS DataBase Reference) |
| EPA Substance Registry System | Sodium lauryl sulfate (151-21-3) |
| Absorption | ≤0.1 at 280nm in water at 30mg/mL |
Safety Information
| Item | Value |
| 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 |
| HS Code | 29209010 |
| Hazardous Substances Data | 151-21-3(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 1288 mg/kg (Walker) |
Product Application of Sodium dodecyl sulfate CAS#151-21-3
Sodium dodecyl sulfate acts as an emulsifier and foaming booster. Approximately 1 gram dissolves in 10 milliliters of water. It serves as an emulsifier in egg white products and as a foaming aid in marshmallows and angel food cake mixes. It also helps improve the dissolution of fumaric acid in formulations.
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