Ceteareth-30 CAS 68439-49-6

Physicochemical profile

Application and grade selection

Ceteareth-30 is an oil-in-water emulsifier and solubilizing aid for personal-care and industrial formulations. Performance depends on the oil phase, total surfactant system, electrolyte concentration, pH, temperature and manufacturing sequence.

• When evaluating a replacement grade, compare average EO level, hydroxyl value, physical form and melting behavior, then assess emulsion stability and viscosity in the intended formulation.
• Personal-care use requires an appropriately documented grade, market-specific ingredient documentation and a finished-product safety assessment.
• The shared CAS number does not establish identical composition or application performance for different Ceteareth grades.

Quality data and test conditions

Hydroxyl value is reported in mg KOH/g and water content in wt%. For pH or cloud-point data, the sample concentration, test medium and temperature are part of the result. A value measured in an alcohol/water mixture cannot be treated as the same result in water alone.

Where residual ethylene oxide is a specified quality item, a matrix-validated headspace GC method can be used. Results should state mg/kg and the reporting limit. This targeted impurity test does not establish the molecular purity or complete EO distribution of Ceteareth-30.

Storage and handling

Keep the product in its original closed container in a dry, ventilated area away from excessive heat and direct sunlight. Warming or conditioning may be required before adding a waxy grade to the formulation; follow the temperature limits stated on the grade TDS and SDS.

Safety and supply documentation

Use workplace controls and personal protective equipment specified by the current SDS.

We can provide a Certificate of Analysis (COA), Technical Data Sheet (TDS) and Safety Data Sheet (SDS) for the supplied Ceteareth-30 grade, together with relevant quality-test information. Send the product name or CAS number, required quantity and destination for a quotation; add any key application or specification requirements.

For emulsifier selection, Steareth-21 offers a different alkyl-chain and EO profile, while Cetearyl Glucoside is a non-ethoxylated option used in oil-in-water emulsifier systems. Neither is a direct equivalent of Ceteareth-30; compare the complete grade composition and formulation performance.

For water-based solubilization, compare Polysorbate 20 where suitable for the material being solubilized. Polyglyceryl-4 Oleate is a lipophilic emulsifier option for water-in-oil systems; that different emulsion role does not make it a direct replacement for Ceteareth-30.