Sodium dodecyl sulfate CAS#151-21-3

Excellent Surface Activity: Sodium dodecyl sulfate delivers outstanding emulsifying, foaming, detergency, penetration, and dispersing performance, making it highly effective in cleaning and formulation applications.


Rich and Stable Foam: It produces abundant, stable foam, which is ideal for detergents, personal care products, and industrial cleaners.


Good Formulation Compatibility: SDS is compatible with both anionic and non-ionic ingredients, allowing easy formulation with a wide range of surfactants and additives.


Fast Biodegradability: It breaks down quickly in the environment, supporting more environmentally responsible and sustainable product formulations.



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Product Description

Products Description of Sodium dodecyl sulfate CAS#151-21-3

SDS (sodium dodecyl sulfate / sodium lauryl sulfate, K12) is an anionic sulfate surfactant in white to pale yellow powder form. It is water‑soluble, non‑toxic, compatible with anionic and nonionic substances, and features strong emulsification, foaming, detergency and biodegradability. Its aqueous solubility is inferior to AES.


Product Application of Sodium dodecyl sulfate CAS#151-21-3

With powerful cleaning, emulsifying and foaming properties, sodium dodecyl sulfate is broadly used in daily chemicals, textiles, fire protection, emulsion polymerization, pharmaceuticals and mineral flotation. Under GB 2760-96, it is permitted as a food processing aid for foaming and emulsification in baked goods, beverages, protein products, fruits, juice and edible oils.

Product Information

Parameters


Melting point204-207 °C (lit.)
density1.03 g/mL at 20 °C
bulk density490-560kg/m3
FEMA4437 | SODIUM LAURYL SULFATE
Fp>100°C
storage temp.2-8°C
solubilityH2O: 0.1 M, clear to nearly clear, colorless to slightly yellow
formPowder or Crystals
colorWhite to pale yellow
OdorSlight fatty odour
PH Rane7.2
PH6-9 (10g/l, H2O, 20℃)
biological sourcesynthetic (oragnic)
Water Solubilityca. 150 g/L (20 ºC)
λmaxλ: 260 nm Amax: 0.3
λ: 280 nm Amax: 0.2
Merck148,636
BRN3599286
InChIKeyDBMJMQXJHONAFJ-UHFFFAOYSA-M
LogP1.6
CAS DataBase Reference151-21-3(CAS DataBase Reference)
EPA Substance Registry SystemSodium lauryl sulfate (151-21-3)
Absorption≤0.1 at 280nm in water at 30mg/mL


Safety Information


Hazard CodesF,Xn,Xi
Risk Statements36/37/38-36/38-22-11-21/22-42-41-20/21/22-37/38
Safety Statements26-36/37-36/37/39-36-22-39
RIDADRUN 2926 4.1/PG 2
WGK Germany2
RTECSWT1050000
F3
TSCAYes
HazardClass4.1
PackingGroupIII
HS Code29209010
Hazardous Substances Data151-21-3(Hazardous Substances Data)
ToxicityLD50 orally in rats: 1288 mg/kg (Walker)


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FAQ

Q1: Is Huafeng Chemical a manufacturer or a trader?
A: We are a professional service provider specializing in chemical foreign trade. Rather than being limited to the products of a single factory, we leverage the chemical industry cluster in Shandong Province to integrate production resources from multiple high-quality manufacturers. This allows us to offer a wide range of sourcing options—covering various product categories and origins—instead of simply pushing a single product. Furthermore, our core competitiveness lies in our professional foreign trade services (covering documentation, logistics, and regulatory compliance), ensuring a smooth and worry-free procurement process for you.


Q2: How is the security of my transaction guaranteed when working with Huafeng Chemical?
A: We strictly adhere to international trade rules (Incoterms® 2020) and accept various payment methods, such as Letters of Credit (L/C) and Telegraphic Transfers (T/T). For new clients, we support small-batch trial orders and can clearly define arbitration clauses and applicable laws within the contract. Additionally, we maintain a robust risk management system to help you mitigate common trade risks, such as exchange rate fluctuations, shipping delays, and document discrepancies.


Q3: Do you have experience serving clients in Russian-speaking regions?
A: Yes. We place great importance on the Russian-speaking market; our team includes Russian-speaking business professionals who are well-versed in the import regulations of Russia and the Eurasian Economic Union (EAEU). We understand the importance of EAC certification to clients in these regions and can assist with related compliance inquiries. We have established connections with chemical traders across various CIS countries and have gained valuable experience in specialized packaging and temperature-controlled shipping designed to withstand harsh local winter conditions.


Q4: How do you guarantee product quality?
A: We implement a strict supplier qualification and periodic audit system. A Certificate of Analysis (COA)—issued by the original manufacturer—is provided with every shipment. We also welcome pre-shipment inspections conducted by internationally recognized third-party agencies such as SGS, BV, or ITS. Should the test results fail to meet the standards specified in the contract, you have the right to reject the goods or request a replacement.

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