ELSURFAC – AOS92N
AOS 92% Needles
ELSURFACTM – AOS92N
AOS 92% Needles is a biodegradable, high-foaming surfactant with superior emulsification and cleansing properties. It is commonly used in detergents, shampoos, and heavy-duty cleaners.
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CAS Number
68439-57-6
HS Code
3402.11.90
Molecular Formula
C₁₄H₂₉NaO₃S
INCI Name
Alpha Olefin Sulfonate (AOS)
AOS 92% Needles
ELSURFACTM – AOS92N
AOS 92% Needles is a biodegradable, high-foaming surfactant with superior emulsification and cleansing properties. It is commonly used in detergents, shampoos, and heavy-duty cleaners.
CAS Number
68439-57-6
INCI Name
Alpha Olefin Sulfonate (AOS)
HS Code
3402.11.90
Molecular Formula
C₁₄H₂₉NaO₃S
Get Pricing for This Product
Need pricing? Request a quote for this product and we'll get back to you shortly.
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We deliver domestic samples within 24 - 48 hours, helping you evaluate products and move to procurement without delays.
ELSURFAC – AOS92N
Product Specification
Physical Properties
| Property | Specification |
|---|---|
| Odor | Mild odor |
| Hlb Value | 11 |
| Viscosity | 40 mPa·s (liquid) |
| Appearance | Clear to slightly turbid pale yellow powder |
| Molecular Weight (G/Mol) | 300.44 |
| Ph (If Aqueous Solution) | 7-9 |
| Density Or Specific Gravity | 1.054 g/cm3 at 20℃ |
Thermal Properties
| Property | Specification |
|---|---|
| Flash Point | >100°C |
| Boiling Point | > 100 °C |
| Melting Point | 140°C to 580°C |
Processing Methods & Reference Formulations
A. Laundry Detergents
When incorporating Alpha Olefin Sulphonate (AOS) into laundry detergent formulations, add it to the water phase with gentle stirring to avoid excessive foaming. Use it as a primary or secondary surfactant for excellent cleansing and foaming properties, especially in hard water. Maintain the formulation pH between 7–9 to ensure AOS stability and effectiveness. Avoid high shear mixing after addition to preserve its foaming characteristics.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Alpha Olefin Sulphonate (AOS) | 10–25% |
| Alkali Pentavalent Phosphoric Acid Salt | 10–30% |
| Sodium Silicate | 2–10% |
| Alkanol | 0.4–8% |
| Sodium Sulfate | 5–20% |
| Water | 10-20% |
B. Hair Shampoo
When adding Alpha Olefin Sulphonate (AOS) to hair shampoo formulations, incorporate it into the aqueous phase under gentle stirring to minimize foaming during mixing. AOS provides strong cleansing and foaming, so it’s often blended with milder surfactants (e.g., betaine) to reduce potential irritation. Maintain the formulation pH between 5.5 and 6.5 for scalp compatibility.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Alpha Olefin Sulphonate | 3-13% |
| Amphoteric or zwitterionic surfactant | 1 to 6% |
| Cationic conditioning polymer | 0.05 to 0.9% |
| Silicone emulsion | 0.05 to 10% |
| Water | 50-60% |
C. Cleanser
When formulating with Alpha Olefin Sulphonate (AOS), pre-dilute it before adding to the formulation to reduce viscosity shocks and avoid lump formation. Always add AOS slowly under gentle stirring to maintain clarity and stability.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Alpha Olefin Sulphonate | 4-30% |
| Cocamidopropyl Betaine | 2-8% |
| Glycerin | 1-5% |
| Water | 60-70% |
Dosing Guidelines
A. Products
| Products | Authorized dosage |
|---|---|
| Cosmetics and personal care: Shampoos | 4–16% |
| Body Washes | 4–30% |
| Laundry Detergents | 10-25% |
About AOS 92% Needles
SO₃ Sulfonation (Yield ~90–95%)
1. SO₃ Sulfonation (Yield ~90–95%) Raw material: Alpha-Olefins (C14–C16), Sulfur Trioxide (SO₃), Sodium Hydroxide (NaOH) Overall Formula: C14H28(orC16H32)+SO3+NaOH→Alpha Olefin Sulfonate+H2O
Chlorosulfonic Acid Method (Yield ~85–90%)
2. Chlorosulfonic Acid Method (Yield ~85–90%) Raw material: Alpha-olefins, chlorosulfonic acid, sodium hydroxide Overall Formula: C14H28+ClSO3H+NaOH→ Alpha Olefin Sulfonate +NaCl+H2O
About AOS 92% Needles
SO₃ Sulfonation (Yield ~90–95%)
1. SO₃ Sulfonation (Yield ~90–95%) Raw material: Alpha-Olefins (C14–C16), Sulfur Trioxide (SO₃), Sodium Hydroxide (NaOH) Overall Formula: C14H28(orC16H32)+SO3+NaOH→Alpha Olefin Sulfonate+H2O
Chlorosulfonic Acid Method (Yield ~85–90%)
2. Chlorosulfonic Acid Method (Yield ~85–90%) Raw material: Alpha-olefins, chlorosulfonic acid, sodium hydroxide Overall Formula: C14H28+ClSO3H+NaOH→ Alpha Olefin Sulfonate +NaCl+H2O
Regulatory Compliance
| Region | Max Allowed Level | Notes | Certification Body |
|---|---|---|---|
| European Union | 2% | Not specifically restricted in the EU Cosmetics Regulation. | SCCS (Scientific Committee on Consumer Safety) |
| United States | 2% | CIR: Safe as used in rinse-off, limit to 2% in leave-on products | FDA |
| Canada | - | No statutory maximum | - |
| Japan | - | For leave on applications, the authorized range of avobenzone is up to 10%. | MHLW – Ministry of Health, Labour and Welfare |
| Australia | - | Not specifically restricted | - |
| China | - | Not specifically restricted | NMPA - National Medical Products Administration |
| Korea, Republic of | - | Not specifically restricted | MFDS - Ministry of Food and Drug Safety |
| ASEAN | - | Not specifically restricted | - |
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