INCI Name
Disodium EDTA
Functions
2 Roles
Sustainability
4/10
Category
chelating agents
What It Does
Disodium EDTA is a synthetic chelating agent that binds metal ions like iron, copper, and calcium that can catalyze oxidation and destabilize formulations. It's the disodium salt of ethylenediaminetetraacetic acid, making it more water-soluble than the free acid form. Formulators choose it because it enhances the effectiveness of preservatives and antioxidants by sequestering trace metals that would otherwise promote rancidity and microbial growth.
Technical Properties
pH Range
4.0-6.0
Optimal working range
Ionic Charge
anionic
Molecular charge type
Viscosity Effect
neutral
Impact on formula thickness
Foaming Ability
none
Lather generation
Ingredient Compatibility
Known Interactions
EDTA is a strong chelator that can strip copper from peptide complexes, deactivating GHK-Cu. Avoid EDTA as a chelating agent in copper peptide formulations; use a non-competing alternative.
EDTA chelates free iron strongly. Intentional in some applications (prevents oxidation catalysis) but can reduce iron bioavailability in supplements/beverages. Verify this is the intended behavior.
Sustainability Profile
Sustainability Score
Biodegradability
not readily biodegradable
Source
synthetic
Feedstock
petroleum-derived precursors
Related Ingredients
Similar chelating agents to explore
Available Variants
10 forms available
Crystalline Powder
Dihydrate Powder
Dihydrate, Fine Powder
Fine Powder
Fine Powder, Cosmetic Grade
Fine Powder, USP Grade
Powder
Powder (Dihydrate)
Standard
USP Grade Fine Powder
Quick Reference
- Full INCI Name
- Disodium EDTA
- Common Name
- Disodium EDTA
- CAS Number
- 139-33-3---6381-92-6
- Category
- chelating agents
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