EDTA Disodium (CAS 6381-92-6) is a chelating agent that binds metal ions (iron, calcium, magnesium) in formulations. It protects cosmetics from discoloration, rancidity and microbe growth — a quiet but essential stabilizer in nearly every water-based product.
Physical & Chemical Properties
- INCI: Disodium EDTA
- CAS number: 6381-92-6
- Appearance: white crystalline powder
- Solubility: soluble in water
- Molecular formula: C10H14N2Na2O8 (dihydrate C10H18N2Na2O10)
- Ionic type: anionic chelating agent
Key Benefits for Formulation
- Metal chelation: binds iron, calcium and magnesium ions
- Stability: prevents discoloration and rancidity
- Preservative synergy: enhances preservative efficacy
- Foam & clarity: improves lather and appearance in cleansers
- Cost-effective: essential at low use levels
Main Applications
- Creams & lotions: metal-ion stability
- Cleansers & shampoos: foam and clarity
- Toners & serums: active stability
- Color cosmetics: color protection
- Industrial & household: hard-water performance
Why Choose Our Bulk EDTA Disodium?
- GMP manufacturing: full quality control from raw material to finished product
- Complete documentation: COA, SDS and heavy metal test reports available on request
- Flexible supply: MOQ and lead time on inquiry, from R&D samples to mass production
- Export experience: reliable shipping to EU, North America, Australia and Middle East
Recommended Usage
Typical use level 0.05%–0.2%. Water-soluble — add to the water phase. Compatible with most systems; verify with cationic actives.
FAQ About Wholesale EDTA Disodium
What is the CAS number of EDTA Disodium?
CAS 6381-92-6 (dihydrate); anhydrous 139-33-3.
What is the INCI name?
Disodium EDTA.
What is EDTA Disodium used for?
Chelating metal ions to stabilize formulas and boost preservative efficacy.
Is it water soluble?
Yes — it is soluble in water.
What is the recommended use level?
0.05%–0.2% depending on water hardness.
Does it boost preservatives?
Yes — by sequestering metal ions it enhances preservative performance.
Is it suitable for all cosmetics?
Yes — it is widely used in skin, hair and color cosmetics.
Start Your EDTA Disodium Bulk Order
Contact our sales team today for spec sheets, samples and bulk pricing — our technical team is ready to support your formulation development.