DiSodium EDTA

1. Key Characteristics

• Appearance: White crystalline powder

• Solubility: Highly soluble in water (≈50 g/100 mL at 20°C)

• pH (1% solution): 4.0–5.5

• Chelation Strength: Binds divalent metal ions (e.g., Ca²⁺, Mg²⁺, Fe²⁺)

2. Common Applications

Cosmetics & Personal Care

• Function: Preservative stabilizer, chelates metal ions to prevent spoilage.

• Found In: Shampoos, creams, soaps.

• Max Concentration: Typically 0.1–0.3%.

Food Industry

• Function: Antioxidant synergist (prevents oxidation by metal ions).

• Approvals: FDA-approved (21 CFR 172.135) for limited uses (e.g., dressings, canned foods).

Pharmaceuticals

• Function: Anticoagulant (in blood collection tubes), stabilizer in injections.

Industrial/Water Treatment

• Function: Scale inhibitor, boiler water additive.

3. Safety & Handling

• Storage: Cool, dry place; keep container tightly sealed.

• Skin Contact: Mild irritant—rinse with water.

• Ingestion: Seek medical attention (may bind essential minerals).

• Environmental Impact: Biodegradable but can mobilize heavy metals in water.

4. Regulatory Compliance

• EU Cosmetics Regulation (EC 1223/2009): Allowed (up to 0.2% in rinse-off products).

• US FDA: GRAS (Generally Recognized as Safe) for specific food uses.

• REACH: Registered under EC 1907/2006.

5. Frequently Asked Questions (FAQs)

Q: Is Disodium EDTA safe in skincare?

A: Yes, in low concentrations (<0.3%). It’s non-toxic but may cause irritation in sensitive skin.