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Technical specifications
Chemical and Physical Specifications (Agricultural Grade)
| Serial Number | Indicator name | Specification Requirements |
|---|---|---|
| 1 | Product name | Ammonium Zinc EDTA Salt |
| 2 | Chemical Formula | C₁₀H₂₀N₄O₈Zn |
| 3 | Molecular weight | 389.70 |
| 4 | CAS No. | 67859-51-2 |
| 5 | Zinc Chelate (Zn) | 10.0 ± 0.4% |
| 6 | pH value (1% aqueous solution) | 8.0 ± 1.0 |
| 7 | pH (0.1% aqueous solution) | 8.5 ± 1.0 |
| 8 | pH (original solution, 25℃) | 7.0 ± 1.0 |
| 9 | Specific Gravity (g/cm³) | 1.34 ± 0.01 |
| 10 | Water-insoluble substances | ≤ 0.01% |
| 11 | Appearance | Light yellow liquid |
| 12 | Packaging Specification | 250 kg drum, 1250 kg IBC container, or as per customer request. |
| 13 | Storage | Store in a cool place, in tightly closed containers, in a dry, well-ventilated room. |
Physical properties
| Project | Description |
|---|---|
| Appearance | Light yellow liquid, uniform color |
| Odor | Odorless |
| Water Solubility | Fully water-soluble, dissolves quickly, no sediment |
| Specific Gravity | 1.34 ± 0.01 g/cm³ |
| pH (original solution) | 7.0 ± 1.0 |
Product description
Zinc ammonium ethylenediaminetetraacetate (EDTA ZnNH4) is a high-efficiency EDTA chelated zinc fertilizer. The product is a light yellow liquid with chelated zinc content 10.0±0.4%, stock solution pH 7.0±1.0, density 1.34±0.01 g/cm³, water insoluble matter ≤0.01%. Using EDTA chelation technology, zinc is in EDTA chelated form, enabling direct crop uptake and utilization with much higher efficiency than conventional inorganic zinc fertilizers.
Product Features
- EDTA chelation technologyGood stability, not fixed by soil
- Liquid FormulationConvenient to use, easy to dilute and mix
- Low impurity contentWater-insoluble residue ≤0.01%, highest purity
- Fully water solubleDissolves Quickly, No Sediment or Residue
- Ammonium-Containing FormulaSimultaneously replenishes nitrogen
Area of application
Agricultural nutrients, fertilizers
Application recommendations
Application via drip irrigation (recommended)
Fully water-soluble formula, ideal for protected cultivation and precision agriculture. EDTA-chelated zinc is directly absorbed by plants.
- Concentration: 0.5–2 mL/L irrigation water
- Application rate: 0.5 – 2 L/mu/time
- Frequency: every 10–15 days
Foliar Feeding
Rapidly replenishes zinc deficiency and eliminates its symptoms; especially suitable for fruit trees and vegetables.
- Dilution ratio: 1:500 – 1:1000
- Application rate: 30 — 60 L/mu
- Time: morning or evening, avoid high temperature
Application with irrigation water
Applied with irrigation water, suitable for zinc supplementation in fruit trees, vegetables, and other cash crops.
- Dosage: 1–3 L/mu/time
- Dilution factor: 1:100–1:200
- Timing: key growth stages of crops
Mixing water-soluble fertilizers
Used as a zinc source together with macronutrient water-soluble fertilizers for balanced nutrition.
- Apply together with water-soluble macronutrient fertilizers
- Additive: 1–5%
- Suitable for melons, vegetables, and fruit trees
Suitable crops and recommended dosages
| Crop Type | Typical crops | Drip irrigation application rate | Application rate for foliar feeding | Application period |
|---|---|---|---|---|
| Fruit Trees | Apple, pear, peach, grape, citrus | 1 – 2 L/ha | 500–1000 times | Bud break, flowering, and fruit set stages |
| Vegetables | Tomatoes, cucumbers, peppers, eggplants, leafy vegetables | 5–1.5 L/mu | 500–1000 times | Seedling stage, flowering stage, fruiting stage |
| Field Crops | Wheat, corn, rice, soybean | 5–1 L/ha | 500–1000 times | Tillering stage, stem elongation stage |
- Store in a cool place, in tightly closed containers, in a dry, well-ventilated room.
- For foliar application, it is recommended to conduct a small-area spray test to check for phytotoxicity before large-scale use.
- Compatible with most fertilizers and pesticides, but a small-area trial application is recommended.
- Before use in drip irrigation, it is recommended to filter the solution to prevent clogging of emitters with impurities.
- Zinc dosage must be controlled to avoid excess and toxicity.
Frequently asked questions
Typical symptoms of zinc deficiency in plants include:
- Small LeavesYoung leaves become smaller, rosetting observed
- Seedling AlbinoismChlorosis and whitening between leaf veins
- Growth RetardationSlow growth, shortened internodes
- Poor fruit developmentFruits shrink, quality deteriorates
Common in high-pH soils (calcareous soils), low organic matter soils, or fields with intensive liming.
The main difference lies in the chelated form and formulation:
- Ordinary zinc fertilizerPresent in the form of inorganic salts (e.g., zinc sulfate), has low absorption rate.
- EDTA ZnNH4Zinc is in EDTA chelate form, being 'encapsulated' in the EDTA molecule, ensuring good stability, resistance to soil fixation, and direct absorption and utilization by crops.
- Liquid FormulationEasy to apply, readily dilutes and mixes, suitable for modern precision agriculture.
Store in a cool place, tightly sealed, in a dry, well-ventilated area. Shelf life in original unopened packaging is24 monthsStorage precautions:
- Avoid direct sunlight and high temperatures
- Prevent leaks or damage to containers
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