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| Product Name | EDTA (Ethylenediaminetetraacetic acid) |
|---|---|
| Specifications | EDTA-ZnNa₂ (Zinc EDTA) |
| CAS Number: | 60-00-4 (free acid) |
| Main Functions | 🧪 Chelating Agent |
| Main Applications | Foliar sprays, fertigation systems, hydroponics, and feed additives. |
Form: Water-soluble powder | Application Grade: Agricultural / Fertilizer / Feed Additive
EDTA (Ethylenediaminetetraacetic acid) is a polyamino carboxylic acid and one of the most widely used chelating agents in industrial, agricultural, food, and pharmaceutical applications. It is capable of binding to metal ions like calcium, magnesium, iron, copper, zinc, and manganese, forming stable, water-soluble chelates.
It was first synthesized in the 1930s and has since become a critical ingredient for controlling metal ion reactivity, stability, and bioavailability in various formulations.
EDTA chelates are high-stability, water-soluble micronutrient sources that prevent precipitation or inactivation of metal ions in solution. Chibio Biotech supplies:
EDTA-ZnNa₂ (Zinc EDTA) – Zinc source for promoting enzyme activity, growth, and leaf chlorophyll synthesis.
EDTA-MnNa₂ (Manganese EDTA) – Manganese source for enhancing photosynthesis and nitrogen assimilation.
They are ideal for foliar sprays, fertigation systems, hydroponics, and feed additives.
Full Name: Ethylenediaminetetraacetic acid
Chemical Formula (free acid): C₁₀H₁₆N₂O₈
Molecular Weight: 292.24 g/mol (free acid)
CAS Number: 60-00-4 (free acid)
Structure: Comprises four carboxyl (–COOH) groups and two amine (–NH₂) groups capable of coordinating metal ions
| Product | EDTA-ZnNa₂ | EDTA-MnNa₂ |
|---|---|---|
| CAS No. | 39208-16-7 | 15375-84-5 |
| Molecular Formula | C10H12N2O8ZnNa2 | C10H12N2O8MnNa2 |
| Appearance | White powder | Pink crystalline powder |
| Solubility | Fully water-soluble | Fully water-soluble |
| pH (1% solution) | 6.0 – 7.0 (Tested: 6.74) | 6.0 – 7.0 (Tested: 6.78) |
| Parameter | EDTA-ZnNa₂ | EDTA-MnNa₂ |
|---|---|---|
| Metal Content | Zn: 14.5–15.5% (Result: 14.6%) | Mn: 12.5–13.5% (Result: 12.6%) |
| Water Insoluble Matter | ≤0.1% (0.05%) | ≤0.1% (0.05%) |
| Appearance | White powder | Pink crystalline powder |
| Storage | Cool, dry, sealed environment | Same |
✅ Chelation Power: Binds strongly to metal ions through multiple coordination sites
✅ pH-Dependent Stability: Effective over a wide pH range (pH 4–9)
✅ Water-Soluble (in salt form): Solubility increases significantly as sodium salts (e.g., EDTA-Na₂, EDTA-Na₄)
✅ Low Toxicity: Widely accepted in food, cosmetics, and personal care applications
✅ Stable at Room Temperature: Long shelf-life in sealed packaging
Sequesters metal ions to prevent precipitation, catalysis, or oxidation in formulations
Protects ingredients from metal-catalyzed degradation
Used as metal carriers (Zn, Mn, Fe, Cu, Ca, etc.) in agriculture and hydroponics
Prevents metal lock-out in alkaline soils
Captures calcium and magnesium ions in detergents and cleaners
Improves foaming and cleaning efficiency in hard water
In cosmetics and food, it enhances antimicrobial performance by binding metal ions needed by microbes
Stimulates enzyme systems and auxin production
Corrects zinc deficiency symptoms like leaf chlorosis and stunted growth
Enhances root development and pollen fertility
Suitable for all crops: cereals, vegetables, fruit trees
Boosts chlorophyll formation and photosynthesis
Aids nitrogen uptake and metabolism
Essential in enzyme activation and disease resistance
Effective in sandy or high-pH soils where Mn is less available
| Form | Description | Use Case |
|---|---|---|
| EDTA (free acid) | Low solubility | Rare, mostly used in lab applications |
| EDTA-Na₂ (Disodium EDTA) | Most common, moderate solubility | Food, cosmetics, chelation therapy |
| EDTA-Na₄ (Tetrasodium EDTA) | High solubility, alkaline | Industrial cleaning, water treatment |
| EDTA-metal chelates (e.g., EDTA-ZnNa₂, EDTA-FeNa₂) | Chelated micronutrients | Agriculture, fertigation, feed |
GRAS (Generally Recognized As Safe) by FDA for limited food uses
Allowed in cosmetics and personal care products in most regions
Safe for plant applications when used within recommended concentrations
Eco-toxicity is minimal when used correctly, but disposal must follow local regulations
| Industry | Application |
|---|---|
| Agriculture | Chelated micronutrients (EDTA-Zn, Mn, Fe, Cu, Ca) for foliar spray, soil, and hydroponics |
| Food & Beverage | Antioxidant synergist, preservative enhancer |
| Pharmaceuticals | Metal detoxification, stabilizer in formulations |
| Cosmetics | Enhances preservative systems in lotions, creams, shampoos |
| Water Treatment | Chelates metal ions to prevent scaling and corrosion |
| Detergents | Improves efficiency by binding hardness ions |
| Application | EDTA-ZnNa₂ | EDTA-MnNa₂ |
|---|---|---|
| Foliar Spray | 0.5–1.5 g/L | 0.5–1.5 g/L |
| Soil Drench / Fertigation | 2–4 kg/ha | 2–4 kg/ha |
| Hydroponics | 0.05–0.1 g/L | 0.05–0.1 g/L |
| Feed Additive (trace mineral) | As per formulation | As per formulation |
✅ Mixable with most NPK and micronutrient solutions
⚠ Avoid mixing with strong acids or incompatible salts
1. Raw Material Preparation
EDTA (ethylenediaminetetraacetic acid)
Zinc sulfate or manganese sulfate
Sodium hydroxide (NaOH)
2. Chelation Reaction
React EDTA with metal salt (ZnSO₄ or MnSO₄) under controlled pH and temperature
Addition of NaOH for neutralization and disodium salt formation
3. Purification
Removal of impurities and unreacted salts
Filtration to eliminate insoluble particles
4. Crystallization / Drying
Controlled drying to achieve desired particle size and moisture content
5. Grinding & Sieving
Uniform fine powder to meet 60–100 mesh standards
6. Quality Control (CCP)
Metal content assay
Solubility, pH, heavy metals, microbial tests
7. Final Packaging
Packed in moisture-proof bags or drums (25kg standard)
Custom OEM/private label available
✅ Primary Functions
Supplies chelated zinc, essential for auxin hormone synthesis, enzyme function, and leaf development
Corrects interveinal chlorosis, shortened internodes, and poor fruit set in zinc-deficient soils
✅ Applications in Detail
Foliar Sprays: Rapid correction of zinc deficiency in citrus, grapes, vegetables, cotton
Soil/Fertigation: Ideal in calcareous or alkaline soils where zinc becomes unavailable
Hydroponics: Compatible with NPK solutions and maintains solubility over time
Feed Additives: Improves growth performance and immune function in livestock (trace mineral premix)
✅ Typical Dosages
Foliar Spray: 0.5–1.5 g/L water
Soil/Fertigation: 2–4 kg/ha
Hydroponics: 0.05–0.1 g/L
Feed Formulations: Per regulatory or veterinary guidance
✅ Primary Functions
Delivers chelated manganese, vital for chlorophyll formation, photosynthesis, and enzymatic activity
Prevents and corrects leaf interveinal yellowing, necrotic spots, and slow maturity
✅ Applications in Detail
Foliar Sprays: Especially useful in citrus, soybeans, cereals, where Mn deficiency is common
Soil/Fertigation: Protects Mn from becoming insoluble in high pH or sandy soils
Hydroponics: Stable Mn source in mixed nutrient solutions
Feed Additives: Used for skeletal development and antioxidant activity in poultry and livestock
✅ Typical Dosages
Foliar Spray: 0.5–1.5 g/L
Soil/Fertigation: 2–4 kg/ha
Hydroponics: 0.05–0.1 g/L
Feed Additives: Based on formulation needs or trace mineral limits
| Feature | EDTA-ZnNa₂ | EDTA-MnNa₂ |
|---|---|---|
| Metal Content | 14.6% Zn | 12.6% Mn |
| Appearance | White powder | Pink crystalline |
| Main Function | Enzyme activation, shoot growth, fertility | Chlorophyll formation, N metabolism |
| Target Deficiencies | Zinc deficiency (chlorosis, stunted growth) | Manganese deficiency (interveinal yellowing) |
| Recommended Crops | Citrus, grapes, corn, rice | Soybeans, cereals, fruits |
| Solubility | Fully soluble | Fully soluble |
| Use Modes | Foliar, fertigation, feed | Foliar, fertigation, feed |
✔ Consistent High Assay – Zn 14.6%, Mn 12.6%
✔ Excellent Water Solubility & pH Compatibility
✔ Low Impurities – <0.05% Insolubles
✔ Bulk Ready & OEM Packaging Support
✔ Suitable for Fertilizer, Feed, and Agricultural Applications
🌾 Precision Agriculture Ready – Ideal for high-value crops & fertigation systems
💧 Stable Chelated Form Prevents Precipitation – Ensures micronutrient availability
📦 Low Dosage, High Efficiency – Effective even in trace quantities
📈 Improve Crop Yield & Quality – Supports sustainable, balanced nutrition strategies
🌱 Custom Formulations Possible – Chibio supports tailored blends with other micronutrients
Looking to enhance your micronutrient portfolio or build a custom agricultural solution?
📧 Email: sales@chibiotech.com
📞 Phone: +86 532 66983270
🌐 Website: www.chibiotech.com
✅ Partner with Chibio Biotech – Innovating with precision chelated micronutrients!
Block B, Vanke Center, No.2 Heilongjiang South Road, Shibei District, Qingdao City, China 266033
+86 (0)532 66983270
+86 156 6577 2296
+86 133 8100 5417
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