Product: Sodium Laureth Sulfate (SLES 70)
CAS‑No.: 68585‑34‑2
EC/EINECS‑No.: 500‑223‑8
INCI Name: Sodium Laureth Sulfate
Ionic type: Anionic surfactant1. Product Information
- Chemical Name: Poly(oxy‑1,2‑ethanediyl), α‑sulfo‑ω‑hydroxy‑, C10‑16‑alkyl ethers, sodium salts
- Synonyms: SLES, AES, Sodium Lauryl Ether Sulfate (2‑EO adduct, C12‑14 base)
- General formula: R‑O‑(CH2CH2O)2‑SO3Na, R = C₁₂‑C₁₄ alkyl chain
- Description: Produced by sulfation of C12‑14 fatty alcohol ethoxylate (2 mol EO), neutralized with sodium hydroxide.
Commercial major grade: 70 wt% active viscous paste, also available as 28 % aqueous dilute grade. Excellent foaming, detergency, hard‑water resistance, readily biodegradable, lower irritation than SLS.
2. Chemical‑Physical Properties
Appearance @25 °C Colourless to pale‑yellow viscous paste
Odour Mild characteristic surfactant odour
Solubility Freely soluble in water
Density (25 °C) 1.03‑1.05 g/cm³
pH (1 % active aqueous solution) 7.0‑9.0
Stability Stable under neutral‑alkaline conditions; hydrolyses under strong acidic long‑term storage; compatible with anionic, non‑ionic surfactants
Biodegradability Readily biodegradable
3. Quality Specification (Typical Commercial SLES‑70 Grade)
| Test Item | Specification |
|---|---|
| Active substance, wt% | 68.0‑72.0 |
| Unsulfated matter, wt% | ≤ 2.0 |
| Sodium sulfate (Na₂SO₄), wt% | ≤ 1.5 |
| pH (1 % active solution) | 7.0‑9.0 |
| Colour (Klett) | ≤ 10 |
| Water content | Balance |
Note: SLES‑28 is diluted form with active 27‑29 %. Real values refer to batch‑specific Certificate of Analysis.
4. Application & Use
Personal‑care cosmetics (major)
Primary foaming & cleansing surfactant for shampoo, body wash, hand‑washing liquid, bubble bath, facial cleanser. Typical formulation dosage: 5‑20 % (based on 70 % raw material).
Household detergents
Liquid laundry detergent, dish‑washing liquid, general‑purpose hard‑surface cleaner; provides rich foam and good grease removal performance.
Textile industry
Wetting agent, scouring agent for textile pretreatment processes.
Other industrial
Leather degreasing, industrial cleaning formulations.Formulation note: Avoid prolonged low‑pH (<5) environment to prevent hydrolytic decomposition.
5. Packing
- Standard: 200 kg net HDPE plastic drum
- Intermediate bulk: IBC 1000 L tote tank6. Transportation and Storage
Transportation
- Not classified as dangerous goods.- Protect containers from mechanical damage, high temperature and direct sunlight. Prevent leakage. Keep separate from strong acids.
Storage
- Store in cool, dry, well‑ventilated warehouse; recommended storage temperature 15‑35 °C. Avoid freezing.- Keep drums tightly closed. Long‑term storage below 40 °C.
- Shelf‑life: 12 months under original sealed proper storage.
- After opening, seal tightly and use promptly.
Disclaimer: This TDS provides typical reference data only. It shall not replace official SDS and batch‑wise COA.
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