Basic product overview
Sodium Lauryl Ether Sulfate (SLES 70%) is a versatile chemical and essential anionic surfactant.The chemical name is Lauryl Ether Sulfate, also known as (C10-C16) alkyl ethoxy sulfate sodium salt or poly (Oxy-1,2-ethyl) alpha-sulfo – ω – hydroxy-C10-16 alkyl ether sodium salt. As a core ingredient in detergents, shampoos, and industrial cleaners, its 70% active content balances performance and price efficiency, making it a top choice for manufacturers worldwide.
Detailed explanation of the production
processRaw material selection:
▪Lauryl alcohol purity ≥99% – a key factor in price stability.
▪Precise control of ethylene oxide addition number (EO number)
▪Sulfur trioxide briquette craft
Core process:
▪Ethoxylation reaction: temperature 120-140℃, pressure 0.2-0.4MPa (critical for chemical stability).
▪Sulfonation reaction: falling film reactor, temperature 30-50℃
▪Neutralization process: NaOH solution accurately controls pH 7.5-8.5
Bleaching process:
hydrogen peroxide treatment
Quality control points:
▪Free oil content ≤1.5% (impacts price and end-product performance).
▪Unsulfonated ≤1.0%
▪Sodium sulfate content ≤1.5%
Safety and regulations
Toxicological data:
▪Acute oral toxicity (LD50): >2000mg/kg (rat)
▪Skin irritation: mild (rabbit, 4-hour closed test)
▪Eye irritation: moderate (Draize test)
Global Regulatory Status:
▪EU: Comply with EC No 1223/2009 Cosmetics Regulations
▪United States: Listed in EPA Safer Chemical Ingredients List
▪China: GB/T 29679-2013 standard
Ecological data:
▪Biodegradation degree (28 days): >80%
▪Fish LC50 (96h): >10mg/L
Storage and transportation and packaging
Storage conditions:
▪Temperature: 5-40℃
▪Avoid metal containers other than stainless steel
▪Recommended nitrogen protection
Packaging specifications:
▪Regular packaging: 200kg polyethylene barrel (cost-effective for manufacturers).
▪Bulk packaging: 1000kg IBC container barrel
▪Special requirements: Inert gas protective packaging can be provided
Illustration:
Transportation requirements:
▪Non-hazardous goods transport
▪Avoid extreme temperatures
▪Prevent container damage
Market development trends
Technology innovation direction:
▪Low dioxane content process (<10ppm)
▪Narrow distribution ethoxylation technology
▪Renewable raw materials development
Application area expansion:
▪Special industrial cleaning agents
▪Oilfield chemicals
▪Agricultural additives
Regional market trends:
▪The annual growth rate of Asia-Pacific region is 6.2%
▪European market transforms into high-purity products
▪North America’s demand for renewable carbon sources grows
FAQ
Q1: How to solve the viscosity problem of high-concentration products?
A: Recommended to use:
▪Add 5-8% urea – a low-price solution for manufacturers.
▪Use ethanol/propylene glycol (3-5%)
▪Temperature control (30-40℃ treatment)
Q2: How to deal with crystallization at low temperature?
A: Suggested plan:
▪Storage temperature ≥15℃
▪Heat it in a warm bath before use
▪Add 3-5% propylene glycol to prevent freezing – preserves chemical stability in cold climates.
Q3: How to reduce product irritation?
A: Professional technical solution:
▪Combined with amino acid surfactant – enhances SLES chemical uses in skincare.
▪Add 1-3% glycerin and other moisturizing agents
▪Control pH in the range of 5.5-7.0
Conclusion
SLES 70% remains indispensable for manufacturers, with innovations optimizing price, safety, and chemical versatility. Its expanding SLES chemical uses ensure long-term market relevance.