ZINC EDTA, Zn-15%, kg

Parameters	Feature
Zinc disodium EDTA	Zinc disodium EDTA, zinc disodium edetate, zinc disodium ethylenediaminetetraacetate, zinc chelate, organic zinc
Formula	C10H12N2Na2O8Zn
Structure
IUPAC	Zinc(2+) disodium 2-({2-bis(carboxylatomethyl)amino]ethyl}(carboxylatomethyl)amino)acetate
INCI	-
CAS	14025-21-9
Clay mass	435,63 g/mol
Density	0,725 g/cm3 (20 °C) bulk
Solubility	940g/L 20oC in water

Zinc EDTA is a very pure, water-soluble zinc chelate. Due to its properties, it can be used for foliar fertilisation as a component of NPK. EDTA (ethylenediaminetetraacetic acid) protects its chelating nutrients over a wide pH range (pH 2-10).

In agriculture and horticulture, the use of zinc EDTA in fertiliser applications reduces the amount of fertiliser used to achieve the same effect. As the compound is organic, the zinc it contains is unaffected by other substances in the environment, so that it all reaches the plant. This avoids over-fertilisation, requires considerably less material and gives maximum effect. Zn EDTA 15% is a material specially designed to supply plants with highly available zinc cations at medium pH conditions. The total zinc content of the product (15 % by weight) is 100 % chelated with EDTA, making the zinc fully effective and fully available to plants. Due to the 'raspberry' shape of the micro-beads, the product is not hygroscopic and is self-soluble, so no mixing is necessary. The solubility of the product is 940 g/l at 20oC. As no sulphates, chlorides and nitrates are used in the production process, the material is anion-free. This product is an effective source of zinc and is mainly recommended for foliar, hydroponic and soil fertilisation applications. It is recommended for preventive and corrective fertilisation of all agricultural and horticultural crops. Zinc is present in many enzymes where it helps to maintain their structural stability. In addition, zinc acts as an external activator of other important enzymes and is involved in many important functions of DNA and RNA metabolism, cell division and protein synthesis. It is essential in the metabolism of indole acetic acid (IAA), an auxin that enhances plant apical growth. Zinc deficiency is widespread among plants grown on highly acidic soils and calcareous soils. In the latter case, zinc deficiency is often associated with iron deficiency (lime chlorosis). The low availability of zinc in calcareous soils with a high pH is mainly due to the adsorption of zinc to clay or CaCO₃.

Small-scale use: Spray - Prepare a solution of 0.05-0.1% (0.5-1.0 g/l) and spray so that leaves and stems are covered with a thin film of moisture with little or no run-off.

Fertilisation in hydroponics: 1ppm (15.63 µmol/l) of zinc can be achieved by adding 7.1 g of zinc EDTA per 1000 l of solution.

Do not exceed 0.1% (1 g/l) of any chelate solution or combination thereof. The sensitivity of some fruit varieties and plants to EDTA chelates may be unpredictable. In the absence of local experience of successful use, we strongly recommend small-scale trials before widespread use.

In aquariums, zinc EDTA is used for trace element enrichment in marine aquariums, especially in coral aquariums where zinc is deficient. Zinc chelate is also used in planted aquaria. Zinc is an important and essential trace element affecting several physiological processes in marine aquaria. It is involved in enzymatic, regulatory, structural and oxygenation processes, making it an essential trace element. It also affects the colour of corals. It should be maintained in the recommended range of 2-5 µg/l. It is important not to overdose as the harmful effects of zinc on marine organisms become significant at higher concentrations.

EDTA is widely used in laboratories to extract metal ions. In biochemistry and molecular biology, ion depletion is a commonly used method for deactivating metal-dependent enzymes, as an assay of their reactivity, or to inhibit damage to DNA, proteins or polysaccharides. In analytical chemistry, EDTA is used for complexometric titration and water hardness analyses, or as a layering agent to remove metal ions that would interfere with the analysis. It is used in the cement industry to determine the free calcium oxide and magnesium content of cement and clinker. Used for the separation of lanthanide metals (lanthanides) in ion-exchange chromatography.

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