AOS Powder
Chemical name: Sodium Alpha Olefin Sulfonate
Content: 92%
Appearance: powder
Use: Surfactant and Detergent
Packing: 25kg per bag
Origin: China
Contact us
- No.420 Zhonghua Road,Qinghuai District, Nanjing,China 210001
- 008618005174481
- Mr.Sam
- sales@nanjingchem.com
Product Introduction
AOS 92% (Sodium Alpha Olefin Sulfonate)
– 92% High Active Anionic Surfactant for Detergent, Personal Care & Industrial Formulations
1. Introduction
AOS, full chemical name Sodium Alpha Olefin Sulfonate, is a high-performance biodegradable anionic surfactant with CAS number 68439-57-6. Our flagship AOS 92% grade is free-flowing pale yellow granular powder with minimum 92% active substance content, manufactured via continuous membrane sulfonation and low-temperature drying technology. It delivers outstanding foaming power, strong detergency, excellent hard water resistance, mild skin compatibility and superior biodegradability, widely recognized as a universal core surfactant raw material across household cleaning, personal care, textile processing, oilfield chemical and agricultural auxiliary industries.
We operate a professional surfactant manufacturing factory covering a total area of 100 mu, equipped with full closed automated sulfonation production lines, independent central quality control laboratory and complete waste water & solid waste recycling treatment stations. Our team consists of 150 skilled frontline production workers and 30 full-time professional technical engineers, separately responsible for raw material feeding, sulfonation synthesis, neutralization drying, batch full-index testing and environmental waste disposal. Long-term joint research partnerships are established with multiple universities and chemical environmental research institutes, focusing on green process upgrading for AOS and other matched anionic/nonionic surfactants. Our joint R&D projects focus on three core directions: optimizing sulfonation catalytic routes to raise AOS active content and reduce inorganic salt impurities, cutting energy consumption and pollutant emission in drying procedures, and developing closed-loop harmless recycling systems for production wastewater and solid salt residues. Every batch of our AOS 92% maintains stable active matter, low unsulfonated oil and low sodium sulfate content, perfectly matching formulation demands of detergent factories, cosmetic manufacturers, textile printing & dyeing plants and oilfield chemical compound enterprises. We provide complete English export compliance documents, stable mass spot inventory and free formulation technical support for global chemical distributors and downstream processing manufacturers.
2. Complete Technical Specification Sheet
Physical & Chemical Indexes of Industrial AOS 92% Powder
| Test Item | Standard Specification | Testing Standard |
|---|---|---|
| Full Chemical Name | Sodium Alpha Olefin Sulfonate (AOS 92%) | GB/T 20200, ASTM D3049 |
| CAS Number | 68439-57-6 | — |
| EINECS Number | 270-407-8 | — |
| Molecular Formula | R-CH=CH-(CH₂)ₙ-SO₃Na (C14-C16 olefin chain) | — |
| Appearance | Pale yellow uniform granular powder | Visual Inspection |
| Active Substance Content | ≥ 92.0 % | Two-phase Titration Method |
| Unsulfated Oil Content | ≤ 3.0 % | Petroleum Ether Extraction Test |
| Sodium Sulfate Inorganic Salt | ≤ 5.0 % | Gravimetric Precipitation Test |
| pH Value (1% Aqueous Solution) | 7.0 ~ 9.0 | Digital pH Meter |
| Foam Height (0.1% solution, 40°C) | ≥ 180 mm | Ross-Miles Foam Tester |
| Biodegradability | ≥ 90 % within 7 days | OECD 301B Biodegradation Test |
| Hard Water Tolerance | Stable foaming & cleaning under 500ppm hard water | Lab Hard Water Simulation Test |
| Moisture Content | ≤ 1.0 % | Oven Drying Weight Loss Test |
| Compliance Certification | EU REACH Registered, ISO9001, Global Surfactant Import Standard | ECHA & International Quality System |
3. Our Factory Profile & R&D Green Manufacturing Strength
3.1 Factory Scale & Staff Allocation
- Total factory land coverage: 100 mu, fully sealed negative-pressure sulfonation workshops with waste gas absorption recovery system, multi-stage wastewater sedimentation & membrane filtration workshop, classified solid waste salt recovery warehouse.
- Production staff: 150 skilled full-shift workers for alpha olefin feeding, SO₃ gas-phase sulfonation, neutralization reaction, low-temperature spray drying and automatic bag packaging, with real-time online process parameter monitoring.
- Technical team: 30 full-time professional technical personnel covering green sulfonation catalyst R&D, product impurity control optimization, full-item batch inspection, wastewater desalination circulation treatment and downstream surfactant formula application development.
- Strict quality control system: Each production batch undergoes full titration & chromatography inspection before delivery, strictly limiting unsulfated oil and inorganic salt impurities to eliminate formulation instability risks for downstream cleaning and cosmetic manufacturers.
3.2 Long-term University & Research Institute Joint R&D Cooperation
- Green sulfonation synthesis process improvement: Optimize microchannel gas-liquid sulfonation reactor technology to reduce side reaction by-product generation, lower steam & power energy consumption and cut organic waste discharge during AOS production.
- Product quality upgrading research: Develop secondary recrystallization & demineralization purification technology to minimize sodium sulfate and unsulfated oil impurities, improve AOS foam stability and skin mildness for high-end personal care formulas.
- Full-cycle waste harmless & recycling treatment: Research wastewater membrane separation desalination, distillation residual liquid recovery and solid inorganic salt resource regeneration technology, realize near-zero pollutant discharge, conform to EU CBAM carbon footprint audit and cross-border environmental inspection standards.
3.3 Core Factory Competitive Advantages
- Full surfactant product matrix: Besides AOS 92% powder, we supply matched anionic, nonionic and amphoteric surfactants, supporting one-stop raw material procurement for downstream formula factories.
- Stable batch consistency: Automated closed continuous sulfonation & drying lines avoid manual operation deviation, active content, foam and impurity indicators keep uniform across all shipments.
- Complete environmental compliance archives: Complete wastewater & solid waste treatment monitoring records, effectively avoiding customs detention risks when exporting to Europe, Southeast Asia, North America and Australia.
4. Core Product Advantages of Our AOS 92% Surfactant
- Ultra-high active substance content (≥92%): High concentration granular powder reduces transportation cost per unit active ingredient for global buyers, easy to compound into solid laundry powder, tablet detergent and concentrated liquid cleaning formulas.
- Excellent comprehensive surface activity: Rich, stable fine foam, powerful oil & stain detergency, outstanding wetting, emulsifying and calcium soap dispersing capacity, compatible with enzymes, builders and all other types of surfactants without performance attenuation.
- Superior hard water & pH adaptability: Maintains stable cleaning and foaming performance in both soft and high-hardness water, works smoothly within wide pH range (4–12), suitable for acidic and alkaline cleaning formulations.
- Mild & eco-friendly characteristics: Low skin irritation and fast biodegradation rate over 90%, meeting EU REACH, OEKO-TEX and global eco-detergent standards, ideal for mild personal care and green household cleaning products.
- Professional one-stop technical service: Our 30-person technical team provides free formulation matching guidance for laundry detergent, shampoo, textile scouring agent, oilfield flooding surfactant and agricultural pesticide spreading agent according to clients’ production equipment and finished product performance targets.
- Reliable large-volume flexible supply capacity: Large-scale continuous sulfonation production lines guarantee sufficient monthly spot inventory, supporting small lab trial sample delivery, 20ft/40ft full-container bulk orders and customized private label packaging for long-term cooperative manufacturers.
5. Main Industrial Applications of AOS 92% Surfactant
5.1 Household Detergent Formulations (Largest Consumption Field)
- Non-phosphate laundry powder, concentrated laundry pods and liquid laundry detergents: Main foaming & cleaning surfactant, matched with zeolite builders and protease enzymes for superior stain removal
- Dishwashing liquid, multi-purpose all-surface cleaners, car wash shampoos: Provides rich stable foam and fast grease emulsification effect
- Low-cost bulk industrial solid cleaning powder for hotel and commercial laundry factories
5.2 Personal Care Cosmetic Products
- Shampoos, body wash, bubble bath and baby mild cleansing products
- Facial cleansers, hand sanitizer foaming base, toothpaste foaming auxiliary agent
Features low skin irritation, soft foam and good compatibility with amphoteric surfactants like cocamidopropyl betaine.
5.3 Textile Printing & Dyeing Industry
- Fabric scouring agent, pre-treatment degreaser for cotton, linen and chemical fiber textiles
- Leveling agent and dye dispersant during printing & dyeing process, improves fiber wettability and uniform dye uptake
- Softener auxiliary additive to enhance fabric hand feeling after washing
5.4 Oilfield & Petroleum Chemicals
- Flooding surfactant for tertiary oil recovery, reduces oil-water interfacial tension to improve crude oil extraction rate
- Drilling fluid wetting agent, oil well pipeline cleaning degreaser and demulsifier auxiliary
5.5 Agriculture & Industrial Cleaning Auxiliaries
- Pesticide formulation auxiliary: Wetting agent, spreader and emulsifier for herbicide & insecticide liquid formulations, enhance active ingredient absorption on crop leaf surfaces
- Heavy-duty industrial degreasers: Metal part cleaning agent, machinery workshop oil stain remover, pipeline circulation cleaning surfactant
- Construction & coating additives: Wetting dispersant for water-based paint, concrete air-entraining agent additive
6. Packaging, Storage & International Shipping Guidelines
Standard Packaging
- Conventional export bulk order: 25kg woven polypropylene bag with inner PE anti-moisture liner, 17MT per 20ft full container load, 26MT per 40ft container
- Large factory mass order: 1000kg ton jumbo bag, customized private printed packaging labels available for long-term cooperative detergent & cosmetic manufacturers
Safe Storage Conditions
- Store AOS 92% granular powder in cool, dry, fully ventilated enclosed warehouse, storage temperature controlled below 35°C
- Keep all packaging bags tightly sealed to prevent moisture absorption and powder agglomeration; strictly isolate from strong oxidants, strong acids and food raw materials
- Avoid long-term direct sunlight exposure which will cause powder color deepening and slight foam performance attenuation
International Trade & Shipping Service
7. FAQ
Q1: What is AOS 92% used for? What type of chemical is it?
A: AOS full name Sodium Alpha Olefin Sulfonate, it is a high-performance anionic surfactant with minimum 92% active content. It acts as core foaming, cleaning and emulsifying raw material, mainly used in household laundry detergents, dishwashing liquids, mild personal care products such as shampoo and body wash, textile printing auxiliaries, oilfield flooding chemicals, agricultural pesticide additives and industrial heavy-duty degreasers.
Q2: What unique advantages does your AOS 92% surfactant manufacturing factory own compared with other suppliers?
A: Our factory covers a total area of 100 mu, with 150 skilled production workers and 30 full-time professional technical R&D engineers. We maintain long-term joint research cooperation with multiple universities and chemical environmental research institutes, dedicated to green sulfonation process optimization for AOS and a full series of matched surfactants. Our R&D team continuously upgrades product purity indicators and develops closed-loop recycling treatment technology for production wastewater and solid waste salt residues, providing low-impurity, eco-compliant high-active AOS 92% and free downstream formulation technical support for global detergent and cosmetic buyers.
Q3: Is your AOS 92% EU REACH registered for bulk export to European detergent and cosmetic manufacturers?
A: Yes, our AOS 92% substance holds complete ECHA EU REACH registration dossier with authorized EU Only Representative (OR). We can provide full batch SVHC test reports, biodegradability certification and official compliance declaration to support smooth customs inspection in all EU member countries without detention risks.
Q4: What negative impacts will excessive unsulfated oil and sodium sulfate impurities in AOS bring to downstream formulations?
A: Excess unsulfated oil will cause unstable foam, oily residue on fabric or skin surface and reduce detergency performance; high sodium sulfate inorganic salt will lead to formula stratification, powder agglomeration and reduced enzyme activity in laundry formulas. Our AOS 92% strictly limits unsulfated oil ≤3.0% and sodium sulfate ≤5.0% to completely avoid such production defects.
Q5: Can I get free lab test samples of AOS 92% before bulk order? Do you offer volume wholesale discount?
A: We supply small lab trial samples of AOS 92% powder for clients’ formula verification and performance testing. Competitive preferential unit prices are provided for long-term cooperative large detergent factories, cosmetic manufacturers and global chemical distributors. Our 30-person professional technical team offers free customized formulation optimization guidance according to different downstream production scenarios.
Q6: What is the shelf life of sealed AOS 92% granular powder? What storage risks should be noticed?
A: Under tightly sealed cool, dry and ventilated warehouse storage conditions, the shelf life of AOS 92% reaches 24 months. AOS powder is easy to absorb moisture in humid environment, loose packaging will lead to caking and slightly weakened foaming capacity, so moisture-proof sealed storage is required. It must be stored separately from strong acid and oxidant chemicals to prevent chemical reaction deterioration.
