E386 Disodium Ethylene Diamine Tetraacetate EDTA 2na Disodium EDTA CAS 6381-92-6

• Customization: Available
• CAS No.: 6381-92-6
• Formula: C10h14n2na2o8.2H2O
• Model NO.: 6381-92-6
• EINECS: 205-358-3
• Classification: Specific Reagents
• Specific Usage: for Agent
• Content: Standard
• Usage: Flocculant
• Source: Extractive
• Habit Appellation: Fine Chemicals
• Application: Industry, Health, Environmental Protection
• Property: Inorganic Reagent
• Custom Package: Available
• Transport Package: Polybag
• Specification: >99%
• Trademark: LONGKEY
• Origin: China
• HS Code: 29224995
• Production Capacity: 4000mt/M

Product Description

Disodium Ethylenediaminetetraacetate (EDTA-2Na)

Chemical Formula: C₁₀H₁₄N₂Na₂O₈.2H₂O
CAS No.: 6381-92-6
Synonyms: EDTA disodium salt, EDTA-2Na

 

1. Basic Properties

Property	Description
Appearance	White crystalline powder or granules
Solubility	Freely soluble in water (~100 g/L at 20°C), slightly soluble in ethanol
pH (1% solution)	4.0-5.5 (weakly acidic)
Stability	Stable at room temperature; decomposes at >150°C
Chelating Capacity	Strong chelation of divalent metal ions (e.g., Ca²^+, Mg²^+, Fe²^+)

 

2. Key Applications

1. 1.Food Industry:
   • Preservative (E386): Inhibits metal ion-catalyzed oxidation to extend shelf life (e.g., canned foods, beverages).
   • Color Stabilizer: Prevents enzymatic browning in fruits and vegetables.
2. 2.Cosmetics:
   • Stabilizer: Prevents metal ion-induced degradation in formulations (e.g., lotions, sunscreens).
3. 3.Pharmaceuticals & Laboratories:
   • Anticoagulant: Binds Ca²⁺ to prevent blood clotting in sample tubes.
   • Buffer Component: Used in molecular biology (e.g., DNA extraction buffers).
4. 4.Industrial Water Treatment:
   • Scale Inhibitor: Softens water by sequestering Ca²⁺/Mg²⁺, preventing pipe scaling.

 

3. Technical Specifications (Industrial Grade)

Parameter	Standard Value
Purity	≥99%
Moisture	≤0.5%
Heavy Metals (as Pb)	≤10 ppm
Iron (Fe)	≤5 ppm
Chelating Value (CaCO3)	≥330 mg/g

 

4. Safety & Storage

• Toxicity: Low toxicity (Oral LD₅₀ in rats: 2,000-4,000 mg/kg). Prolonged exposure may disrupt mineral metabolism.
• Handling Precautions:
  • Avoid dust inhalation (use dust masks).
  • Rinse skin/eyes immediately upon contact.
• Storage Conditions:
  • Keep sealed in a cool, dry place (<25°C, humidity <60%).
  • Separate from strong oxidizers and acids.
• Shelf Life: 24 months (unopened).

 

5. Usage Guidelines

• Dissolution Method:
  Gradually add to warm water (40-50°C) with stirring to avoid clumping.
• Recommended Dosage:
  • Food Additive: 0.01%-0.1% (of final product weight).
  • Water Treatment: 0.1-1.0 g/L (adjust based on water hardness).
• Compatibility:
  Compatible with most anionic/nonionic surfactants. Avoid direct mixing with strong oxidizers (e.g., H₂O₂).

 

6. Comparison with EDTA-4Na

Property	EDTA-2Na	EDTA-4Na
Sodium Ions	2	4
Solubility	Lower (requires warm water)	Higher (soluble in cold water)
pH Suitability	Weakly acidic to neutral	Alkaline (pH 8-12)
Cost	Lower	Higher

 

7. Regulatory Compliance

• Food Grade:
  • China: GB 1886.100-2016
  • EU: E386 (compliant with EC 1333/2008)
  • USA: FDA 21 CFR §172.135

In the salts of ethylenediamine tetra acetic acid, two sodium salt is the most important. It is an important complexing agent. It is used for complexing metal ions and separating metals. It can also be used in detergents, liquid soap, shampoo, agricultural chemical spray, color photosensitive material, rinsing and processing bleaching fixative, water purifying agent, pH regulator, negative coagulant, etc. In the redox initiation system for SBR polymerization, EDTA disodium is used as an active agent to complex ferrous ions and control the polymerization reaction rate. The drug is low toxicity, and LD50 is 2000 mg / kg in rats. Used as a chelator for metal ions.

Check calcium, magnesium, etc. It is used in pharmaceutical industry, color development, smelting of rare metals and other fields. It is an important complexing agent and metal masking agent.

It is used as ammonia carboxycomplex for the determination of calcium, magnesium and other metals. It is used as metal masking agent and color developer. It is also used in pharmaceutical industry and smelting of rare metals.

It is also used as an antioxidant and a metal chelating agent, which has the same function as EDTA, but it has a wider application range. The cosmetics raw materials contain trace metal ions and can be used in the production and storage and transportation of cosmetics.