Disodium EDTA
EDTA-2Na, Disodium Edetate, Na2EDTA.
- CAS
- 139-33-3
- EC
- 205-358-3
- Sectors
- Water & Wastewater Treatment, Personal Care & Cosmetics, Food & Nutrition
Disodium EDTA (CAS 139-33-3) is a chelating agent supplied in Food Grade and Cosmetic Grade as a white crystalline solid with purity levels exceeding 99%, used to sequester metal impurities that affect product clarity and stability in skincare formulations, food preservation and water and wastewater treatment. This Food/Cosmetic Grade crystalline powder is highly effective in slightly acidic to neutral pH environments.
It functions as a critical preservative synergist, enhancing the efficacy of antimicrobial agents by destabilizing bacterial cell walls. The purity levels exceeding 99% ensure it meets the stringent requirements for pharmaceutical and high-end skincare formulations.
As a Specialty Chemical, it prevents the oxidative degradation caused by trace metals, thereby protecting color, fragrance, and active ingredients. It is prized for its excellent water solubility and compatibility with a wide range of cosmetic emulsifiers and thickeners.
Typical Properties
| Molecular formula | C10H16N2O8.2Na |
|---|---|
| Molecular weight | 336.21 g/mol |
| Appearance | white crystalline solid |
| Form | solution |
| Color | ≤5 (0.5 M)(APHA) |
| Odor | at 100.00?%. odorless |
| Melting point | 252 °C (decomp) |
| Boiling point | >100 °C |
| Density | 1.01 g/mL at 25 °C |
| Water solubility | Miscible with water. |
| pH | 8.0±0.2 |
| GHS signal word | Warning · Irritant / harmful, Health hazard |
| HS code | 29224900 |
| Grades available | Food Grade, Cosmetic Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Disodium EDTA
Applications
- Skincare Formulations: Added to lotions and shampoos to prevent discoloration and preserve the integrity of botanical extracts.
- Food Preservation: Used in canned vegetables and carbonated drinks to prevent color fading and metallic off-flavors.
- Medical Applications: Utilized in anticoagulant tubes and as a treatment agent for heavy metal poisoning in clinical settings.
Safety & Risks
Low acute toxicity but can cause respiratory irritation. Always wear a Dust Mask and Gloves during bulk handling. Hazard Classification: Skin/Eye Irritant.
Packaging
25 kg Kraft Paper Bags or high-density PE Drums for pharmaceutical-grade shipments.