EDTA-Ethylenediaminetetraacetic acid，is a representative substance of chelating agent that can bind to divalent metal ions such as magnesium (Mg), calcium (Ca), manganese (Mn), iron (Fe), which can form stable water-soluble complexes with alkali metals, rare elements and transition metals.
So, what kinds of EDTA are available?
1. EDTA-2Na is an important complexing agent.
It can be used for complexing metal ions and separating metals. It is used as bleaching and fixing solution for color photographic material processing, dyeing auxiliary, fiber treatment agent, cosmetic additive, medicine, food, agricultural chemical micro fertilizer production, blood anticoagulant, complexing agent, detergent, stabilizer, synthetic rubber, polymerization initiator and heavy metal quantitative analysis agent, etc.
2. EDTA-4Na is a widely used metal ion chelating agent.
It can be used in textile industry dyeing, water quality treatment, color sensitization, pharmaceutical, daily chemical, paper making and other industries as additive, activator, water purifier, metal ion masking agent and activator in butadiene rubber industry. It is used in the dry acrylic industry to offset the metal thousand disturbances and improve the color and brightness of the dyed fabric, and it can also be used in liquid detergent to improve the washing quality and enhance the washing effect.
3. EDTA chelated calcium (EDTA-CaNa2) is fully water soluble, fast dissolving, non-caking, used in agriculture, forestry, animal husbandry or other economic crops. In fertilizer production, it can be widely used as foliar fertilizer, washout fertilizer, drip irrigation fertilizer, water-soluble fertilizer, organic fertilizer, compound fertilizer, foliar spraying, washout, drip irrigation and no-shirt cultivation, or used alone.
4. EDTA chelate copper (EDTA-CuNa2) is fully water soluble, fast dissolving, no caking, used in agriculture, forestry, animal husbandry or other economic crops. In fertilizer production, it can be widely used as foliar fertilizer, flushing fertilizer, drip irrigation fertilizer, water-soluble fertilizer, organic fertilizer, compound fertilizer, foliar spraying, flushing, drip irrigation and no-shirt cultivation, or used alone.
5. EDTA chelate iron (EDTA-FeNa) is used in the range of pH4-7, chelate 4 bonds, stability constant is 25, fully water soluble, fast dissolving, no caking, used in agriculture, forestry, animal husbandry or other economic crops. In fertilizer production, it can be widely used in foliar fertilizer, washout fertilizer, drip irrigation fertilizer, water-soluble fertilizer, organic fertilizer, compound fertilizer, foliar spraying, washout, drip irrigation and sessile cultivation, or used alone.
6. EDTA-Fe-NH4+ is used to solve the yellowing symptoms of iron deficiency in crops or ornamental horticultural growth in alkaline or calcareous soils. Used as an oxidizing agent, bleaching agent for developing and processing photographic materials, and thinning agent.
7. EDTA chelated magnesium (EDTA-MgNa2) is fully water soluble, fast dissolving, no caking, used in agriculture, forestry, animal husbandry or other economic crops. In the production of fertilizer, it can be widely used as foliar fertilizer, washout fertilizer, drip irrigation fertilizer, water-soluble fertilizer, organic fertilizer, compound fertilizer, foliar spray, washout, drip irrigation and no; Shi cultivation, can also be used alone.
8. EDTA chelated manganese (EDTA-MnNa2) is fully water soluble, fast dissolving, no caking, used in agriculture, forestry, animal husbandry or other economic crops. In fertilizer production, it can be widely used as foliar fertilizer, washout fertilizer, drip irrigation fertilizer, water-soluble fertilizer, organic fertilizer, and compound fertilizer as added raw materials for foliar spraying, washout, drip irrigation and soilless cultivation, and can also be used alone.
9. EDTA chelated zinc (EDTA-ZnNa2) is fully water soluble, fast dissolving and non-caking, used in agriculture, forestry, animal husbandry or other economic crops.
In fertilizer production, it can be widely used as foliar fertilizer, flushing fertilizer, drip irrigation fertilizer, water-soluble fertilizer, organic fertilizer, and compound fertilizer as added material.
It can be used for foliar spraying, flushing, drip irrigation and soilless cultivation, or used alone.
10. EDDHA-Fe6% is used between the soil range (pH 4-10), chelates 6 bonds, stability constant 33,9. It has high efficiency, high quality, super biological activity, and is more widely applicable than EDTA chelated iron and DTPA chelated iron. Fully water soluble, fast dissolving, no caking, used in agriculture, forestry, animal husbandry or other economic crops. In fertilizer production, it can be widely used as foliar fertilizer, washout fertilizer, drip irrigation fertilizer, water-soluble fertilizer, organic fertilizer, compound fertilizer, foliar spraying, washout, drip irrigation and soilless cultivation, or used alone.
DTPA (diethylenetriaminepentaacetic acid) is a chelating agent that is commonly used in medical and industrial applications.
It can quickly generate water-soluble complexes with calcium, magnesium, iron, lead, copper, manganese plasma, especially strong complexing ability for high-valent color-developing metals, so it is widely used in hydrogen peroxide bleaching stabilizer, water softener, textile printing and dyeing industry auxiliaries, food additives, pharmaceutical stabilizer, photographic industry complexing agent.
So, what kinds of DPTA are available?
1. DTPA-5Na 40% can quickly generate water-soluble complexes with calcium, magnesium, iron, lead, copper, manganese and other metal ions, especially the complexing ability of high-valent color-emitting metal ions, widely used in hydrogen peroxide bleaching efficiency stabilizer, water softening agent, textile printing and dyeing industry auxiliaries, color photographic material processing, bleaching fixing solution, analytical chemistry benchmark reagent, chelating titrant, daily chemical industry, cosmetics industry.
2. DTPA-FeHNa is a chelating agent used under mild conditions (soil pH 4-8), chelates 5 bonds with a stability constant of 30.2, higher than EDTA iron chelate, fully water soluble, fast dissolving, no caking, used in agriculture, forestry, animal husbandry or other economic crops. In fertilizer production, it can be widely used as foliar fertilizer, washout fertilizer, drip irrigation fertilizer, water-soluble fertilizer, organic fertilizer, compound fertilizer as added raw material for foliar spraying, washout, drip irrigation and soilless cultivation, and can also be used alone.
# DiethylenetriaminepentaaceticAcid
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