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DNS Fine Chemicals(Ethylenedinitrilo) Tetraacetic Acid ACS

ETHYLENE DIAMINE TETRA ACETIC ACID, FREE ACID
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EDTA acid is a synthetic amino acid, which is used to treat lead and mercury poisoning. Sodium or calcium EDTA acid binds to metals, such as nickel, copper, and iron and make them unavailable to react with other ingredients in a product or compounds within the human body. Compounds that act in this way are known as chelating agents and thus EDTA acid is a chelating agent.

GENERAL DESCRIPTION
Typical appearance: white solid
Analytical use: chelating agent
Change in state (approximate): melting point, 220ºC, with decomposition
Aqueous solubility: 0.05g in 100 ml at 25ºC

Assay 99.4 – 100.6% C10H16N2O8
  Maximum Allowable
Insoluble in dilute ammonium hydroxide 0.005%
Residue after ignition 0.2%
Nitrilotriacetic acid [(HOCOCH4)3N] 0.1%
Calcium (Ca) 0.001%
Magnesium (Mg) 5 ppm
Heavy metals (as Pb) 0.001%
Iron (Fe) 0.005%
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EDTA ACID AR
Synonym (ETHYLENEDINITRILO)TETRA-ACETIC ACID
CAS No. 60-00-4
Molecular Formula [CH2NCH2COOH2]2
Molecular Weight 292.25
Description FINE WHITE CRYSTALLINE POWDER
Specifications
ID TO PASS TEST
AMMONIA-INSOLUBLE MATTER MAX. 0.005%
LOSS ON DRYING MAX. 0.1%
SULPHATED ASH MAX. 0 1%
CHLORIDE MAX. 0.02%
NITRILOTRIACETATE MAX. 0.03%
SULPHATE MAX. 0.005%
CALCIUM MAX. 0.005%
COPPER MAX. 0.0005%
IRON MAX. 0.0005%
LEAD MAX. 0.0005%
MAGNESIUM MAX. 0.005%
POTASSIUM MAX. 0.005%
SODIUM MAX. 0.05%
ASSAY MIN. 99.0%
EDTA ACID LR
Synonym ETHYLENEDINITRILOTETRA-ACETIC ACID
CAS No. 60-00-4
Molecular Formula C10H16N2O8
Molecular Weight 292.25
Description A FINE WHITE CRYSTALLINE POWDER
Specifications
SOLUBILITY SLIGHTLY SOLUBLE IN WATER, SOLUBLE IN ALKALI METAL HYDROXIDE & AMMONIA
SULPHATED ASH MAX. 0.2%
CHLORIDE MAX 0.01%
SULPHATE MAX. 0.1%
ASSAY MIN. 99.0%
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