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Technical Specifications
Chemical and Physical Specifications (Agricultural Grade)
| Serial No. | Indicator Name | Specification requirements |
|---|---|---|
| 1 | Molecular Formula | C₁₀H₁₂N₂O₈CoNa₂·2H₂O |
| 2 | Molecular Weight | 429 |
| 3 | CAS Number | 15137-09-4 |
| 4 | Chelated Cobalt (Co) | ≥ 12.5% |
| 5 | pH Value (1% Aqueous Solution) | 6.0 — 7.5 |
| 6 | Appearance | Red-Purple Powder |
Basic Product Information
| Projects | Description |
|---|---|
| Product Name | Ethylenediaminetetraacetic acid cobalt disodium salt / EDTA-CoNa₂ |
| English Name | Ethylenediaminetetraacetic Acid Cobalt Disodium |
| CAS Number | 15137-09-4 |
| Molecular Formula | C₁₀H₁₂N₂O₈CoNa₂·2H₂O |
| Molecular Weight | 429 |
| Appearance | Red-Purple Powder |
| Water Solubility | Fully water soluble, dissolves quickly |
Product Introduction
Product overview
Ethylenediaminetetraacetic Acid Cobalt Disodium Salt (EDTA-CoNa₂, also known as EDTA Cobalt Disodium, EDTA Cobalt Sodium Salt) is a high-efficiency EDTA chelated cobalt fertilizer. Product is red-violet powder, chelated cobalt content ≥12.5%, pH (1% aqueous solution) 6.0-7.5.
Core Advantages
- High Cobalt ContentChelated cobalt ≥12.5%, meets crop demand for trace element cobalt
- High StabilityEDTA chelated cobalt, stable in soil and solution
- Fully water-solubleReddish-purple powder, fully water soluble, dissolves quickly, suitable for various irrigation systems
- High Absorption RateCobalt exists in chelated form, directly absorbable by crops
- Good SafetypH value 6.0-7.5, crop-friendly.
Application Guide
Recommended dosage
| Application Method | Recommended dosage | Precautions |
|---|---|---|
| Foliar Spray | 0.5-1.5 kg/ha | Dilute 800-1500 times, spray evenly on both sides of leaves |
| Drip Irrigation / Fertigation | 1-3 kg/ha | Apply with irrigation water; avoid mixing with strongly alkaline fertilizers. |
| Water-Soluble Fertilizer Compounding | 1-5% | Perform a pre-dissolution test when combining with other trace elements. |
Usage Suggestions
- Apply on cloudy days or in the evening to avoid strong light and high temperature.
- Can be mixed with most pesticides and foliar fertilizers; a small preliminary test is recommended before mixing
- When dissolving, first add the product to clean water, stir until fully dissolved, then add other fertilizers
- Adjust application frequency based on crop cobalt deficiency level and growth stage, typically apply every 15-20 days
Applications
Agricultural Nutrients
Used as an efficient cobalt source in agricultural production to meet crops' demand for the trace element cobalt.
- Legume Nitrogen Fixation
- Cobalt Supplement for Vegetables
- Nutrient supplement for cash crops
Water-soluble fertilizer
Used as a trace element source in water-soluble fertilizer production.
- Water-soluble Micronutrient Fertilizer
- Functional Water-soluble Fertilizer
- Foliar Fertilizer
Drip Fertigation
Fully water-soluble formula, suitable for drip irrigation systems in facility agriculture
- Drip System
- Micro spray system
- Fertigation
Foliar Spray
Rapidly replenishes cobalt to correct cobalt deficiency.
- Foliar Fertilizer
- Rapid correction
- Foliar Supplement
FAQ
EDTA-CoNa₂ is an EDTA chelated cobalt fertilizer. Key differences from ordinary cobalt fertilizers:
- StabilityEDTA chelated cobalt is stable in soil and solution, not prone to precipitation
- Absorption RateThe chelated form of cobalt can be directly absorbed by crops, with an absorption rate far higher than ordinary inorganic cobalt fertilizers
- Water SolubilityFully water-soluble, no residue, suitable for all irrigation systems.
Store in a dry and ventilated warehouse, protect from direct sunlight, handle with care, prevent packaging damage.
Standard packaging is 25 kg bags. We also support custom packaging based on customer needs, please contact us for MOQ and pricing.
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