Sodium C14-16 olefin sulfonate (AOS) and sodium lauryl sulfate (SLS) are different anionic surfactant families, not interchangeable generic actives. Neither is a universal drop-in for the other. The current MOS product catalogue confirms both AOS and SLS families and multiple grade forms, but any comparative performance or substitution conclusion must be confirmed on a current grade-specific TDS/COA and through matched sample trials.
Match the exact grade and form before any performance assumption
The current catalogue identifies distinct supplied AOS and SLS families, but a family name does not establish the grade that will perform in your detergent. Start with the AOS product page and SLS product page to request the exact grade, form and documents for a trial. Grade-table numbers in the imported listings require current TDS/COA confirmation; they are not used as article specifications.
| Decision variable | What to confirm | Comparison boundary |
|---|---|---|
| Exact grade and form | Current grade code, physical form, active matter basis on TDS/COA | Do not compare generic chemical names only |
| Test dosage | Verified active matter, not supplied weight | Foam, pH and appearance conclusions can shift if active matter differs |
| Application conditions | pH, temperature, water hardness, soil load, final formula | AOS and SLS may respond differently in the same formula |
| Foam and appearance | Foam profile and clarity under final use conditions | No single surfactant always wins on foam or feel |
| Supplier path | Separate AOS and SLS requests for TDS/COA, SDS, sample trial | Keeps grade-specific data and commercial terms distinct |
Normalize the trial dosage to verified active matter
Lab comparisons are only valid when both surfactants are dosed on the same active matter basis. If one sample is supplied at a different active matter level, a weight-for-weight test can produce misleading foam or pH differences. Confirm the active matter method and basis from each grade-specific TDS/COA, then calculate the equivalent dosage before mixing the test blends.
- Confirm the active matter content and method for the exact AOS and SLS grades.
- Convert the trial dosage to the same active matter basis before weighing.
- Run the target detergent formula with unchanged pH, temperature and water conditions.
- Record foam, appearance and any processing response at multiple use concentrations.
- Review both grades on separate TDS/COA and RFQ paths before pilot scale-up.
Qualify foam, pH and appearance under the buyer’s actual formulation
AOS and SLS performance cannot be ranked generically. Foam volume and foam stability depend on builders, co-surfactants, pH, temperature and water hardness. The same AOS grade can behave differently in a high-electrolyte liquid detergent versus a mild hand wash formulation. Use the buyer’s target formulation, not a simplified lab base, and document appearance because clarity or phase behavior can differ between the two surfactants at the same active matter.
Keep AOS and SLS supplier evaluation paths separate
For an RFQ, provide your current surfactant and grade, detergent application, target active matter, water and test conditions, sample size, trial and annual quantity, packaging and destination. Ask for current grade-specific TDS/SDS and agreed batch COA items. Send the request through the AOS product page or SLS product page according to the candidate actually under review; the supplier must confirm the offered grade and documents.
FAQ
Is sodium C14-16 olefin sulfonate the same as sodium lauryl sulfate?
No. They are different anionic surfactant families. AOS is not a universal drop-in for SLS, and grade or active matter differences can change formulation behavior. Confirm exact grades and current TDS/COA before comparing.
Can AOS replace SLS one-to-one in an existing detergent formula?
Not without a matched active-matter trial. Even if the application targets similar foam or cleaning, differences in grade, formulation conditions and active matter basis can shift pH, foam and appearance. Run a side-by-side trial in the final formula before a substitution decision.
How should formulation engineers compare AOS and SLS samples?
Start from the exact product grade on the AOS and SLS product pages. Normalize both test dosages to the same verified active matter. Evaluate foam, pH and appearance under the buyer’s actual detergent conditions, and request separate TDS/COA/SDS documents for each sample.
What supplier information is needed for an AOS vs SLS purchasing decision?
Provide the current surfactant and grade, detergent application, target active matter and test method, sample and annual quantity, packaging and destination. Request current grade-specific TDS/SDS and agreed COA items for each candidate.