pH adjusters
Sodium hydroxide
Small additions can materially change pH, viscosity, free-acid balance, and reaction progress, so it functions as a process-critical input.
- INCI
- SODIUM HYDROXIDE
- CAS
- 1310-73-2
- Also known as
- caustic soda · lye
- Function
- pH adjusters
Ingredient answer
What is Sodium hydroxide?
Sodium hydroxide is a strong alkali used to neutralize acids, adjust pH, swell selected polymers, and create soap through saponification.
Formulation behavior
How it works inside a formula
Handle through controlled dilution and documented safety procedures, add gradually, and verify final pH only after the system equilibrates.
Where it appears
Common product contexts
- gels
- cleansers
- emulsions and acid systems
Practical caution
What to keep in view
Add gradually from a controlled dilution and verify final pH after the batch has equilibrated.
Take the ingredient into a working formula.
Keep supplier details, percentages, compliance checks, and batch records inside your private Formuley workspace.