EDTA Zinc

Agricultural Grade Chelated Micronutrient — Bulk supply across India & International Markets

What is EDTA Zinc?

EDTA Zinc is a chelated form of zinc micronutrient fertiliser, in which zinc ions are bound within the EDTA molecular structure to form a stable, water-soluble complex. This chelation protects the zinc from being locked up by soil minerals or precipitating out of solution, ensuring the zinc remains in a plant-available form for significantly longer than non-chelated zinc sources such as zinc sulphate, particularly in alkaline or high-pH soil conditions.

Polychem Industries supplies EDTA Zinc to agricultural input companies, fertiliser blenders, and horticultural suppliers across India and internationally. Zinc is an essential plant micronutrient required for enzyme function, chlorophyll synthesis, and overall plant growth, and chelated EDTA Zinc provides one of the most efficient and reliable methods of correcting zinc deficiency in crops.

Available Grades

GradeFormPurityStandardApplications
Agricultural GradeWhite to pale yellow crystalline powderZn content 14–15% (chelated)Agricultural / FertiliserFoliar sprays, fertigation, soil application, hydroponics

Applications & Uses

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Foliar Fertiliser Sprays

One of the most effective methods of correcting zinc deficiency. EDTA Zinc is readily absorbed through plant leaves when applied as a foliar spray, providing rapid correction of visible zinc deficiency symptoms in field and horticultural crops.

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Fertigation & Drip Irrigation

Used in fertigation systems where its excellent water solubility and chelate stability ensure the zinc remains plant-available even when passed through drip irrigation systems, without clogging emitters through precipitation.

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Soil Application for Zinc-Deficient Crops

Applied to soil in zinc-deficient regions, particularly in alkaline or calcareous soils where non-chelated zinc would quickly become unavailable to plants, EDTA Zinc maintains zinc availability for extended root uptake.

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Horticultural & Vegetable Crops

Used extensively in high-value horticultural and vegetable production where zinc deficiency can significantly impact yield and quality, providing a reliable, fast-acting source of this essential micronutrient.

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Hydroponics & Soilless Culture

Used in hydroponic nutrient solutions as the preferred zinc source due to its excellent solubility and chelate stability, ensuring consistent zinc availability throughout the nutrient solution lifecycle.

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Fruit & Plantation Crops

Used in fruit orchards, vineyards, and plantation crops to correct zinc deficiency, which commonly manifests as reduced fruit set, smaller fruit size, and characteristic leaf symptoms in zinc-sensitive crop species.

Technical Specifications

EDTA Zinc — Key Properties

Chemical FormulaC10H12N2Na2O8Zn
CAS Number14025-21-9
Molecular Weight435.6 g/mol
AppearanceWhite to pale yellow crystalline powder
PurityZn content 14–15% (chelated)
Chelation StabilityStable across pH 4–10
Density / Bulk DensityBulk density: 0.6–0.8 g/cm3
pH4.5 – 6.5 (1% solution)
Packaging Available25 kg bags
StorageStore in cool, dry place away from moisture and direct sunlight. Maintains chelate stability across a wide pH range under normal storage.

Why Source EDTA Zinc from Polychem Industries?

  • Agricultural Grade chelated micronutrient with stable Zn content
  • Certificate of Analysis available on request
  • Maintains plant availability across a wide pH range, unlike non-chelated zinc
  • Reliable bulk supply for agricultural input and fertiliser companies
  • Competitive pricing with consistent year-round availability
  • Export documentation experience for international shipments

Frequently Asked Questions

Why is chelated EDTA Zinc preferred over Zinc Sulphate for foliar application?
EDTA Zinc remains soluble and plant-available across a wider pH range and is less likely to react with other spray tank components or precipitate compared to non-chelated zinc sulphate. This makes EDTA Zinc particularly effective for foliar application in hard water areas or when tank-mixed with other agrochemicals, and its chelated form is also generally absorbed more efficiently through leaf tissue.
What crops commonly benefit from EDTA Zinc application?
Zinc deficiency commonly affects a wide range of crops including maize, rice, citrus, grapes, and various vegetable crops, particularly in alkaline or sandy soils with naturally low zinc availability. EDTA Zinc is used to correct visible deficiency symptoms (such as interveinal chlorosis and stunted growth) and as a preventive measure in known zinc-deficient growing regions.
How is EDTA Zinc different from EDTA Ferrous?
Both are EDTA-chelated micronutrient fertilisers using the same chelating chemistry, but they deliver different essential micronutrients — zinc versus iron. The choice of which to apply depends on which specific micronutrient deficiency is present in the crop, often determined through soil testing or visual diagnosis of deficiency symptoms, which differ between zinc and iron deficiency.
Do you export EDTA Zinc outside India?
Yes. We export to Bangladesh, Sri Lanka, Nepal, Bhutan, and South Africa with full export documentation. Contact us for export pricing and lead times.

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