An SLS quality comparison should retain unsulfated material and relevant inorganic salts as separate entries. Subtracting active matter from 100% does not identify what every remaining component is.
Use the supplier’s actual analytical definitions
The STEPANOL WA-100 bulletin, Typical Properties lists unsulfated material, sodium chloride and sodium sulfate separately. This is a producer example, not an ENVO composition guarantee. Ask which values are specification limits and which are only typical observations.
For the offered grade, retain units, method and reporting basis. Do not rename one measured fraction as another because both are outside the active-matter field. A reported residual component can be relevant to formulation development, but its effect should not be invented from the number alone.
| Field | Appropriate purchasing use |
|---|---|
| Active matter | The named surfactant-content requirement |
| Unsulfated material | A separately defined composition requirement |
| Inorganic salts | Specific reported salts and their agreed limits |
| Water or volatile matter | The stated method and basis, where required |
Connect limits to the actual application
Review the candidate in the intended formulation and process. If the product is appearance- or sensory-sensitive, use the approved relevant evaluation rather than tasting or informally testing a raw chemical. All site safety and intended-use controls continue to apply.
Send ENVO the actual component limits your specification requires and ask for current lot evidence. A useful COA preserves the distinctions needed for release and investigation; a single unqualified “high purity” statement does not provide the same information.
Related decisions
- SLS active matter versus total solids: choose the right purchase denominator
- SLS foam height is not a cleaning result: define both tests
Review Sodium Lauryl Sulfate (SLS) product identity and purchasing requirements. For the decision above, send ENVO your application, acceptance criteria, quantity and destination. Confirm the offered grade and available documents before ordering.
Technical references support the stated material or test method. Confirm the offered grade and current acceptance criteria for your application. Quality and document guidance
Share your application, target properties and test conditions to discuss the next step.
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