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EDTA

Ethylene Diamine Tetraacetic Acid

EDTA

CAS No. 60-00-04   1644202990273935.jpg

Molecular formulaC10H16N2O8

Molecular weightM=292.24

Structure


Properties: White crystalline powder. The melting point is 40 (decomposition). Insoluble in cold water, alcohols and general organic solvents, slightly soluble in hot water, soluble in solution of sodium hydroxide, sodium carbonate and ammonia.

Quality Specification 

Testing Items

Specifications

Quality product

Top-quality product

Content %

≥ 99.0

≥ 99.5

ChlorideCl%

≤ 0.05

≤ 0.01

SulfateSO42-%

≤ 0.02

≤ 0.02

NTA %

----

≤ 0.10

Heavy MetalPb%

  ≤ 0.001

≤ 0.001

FerrumFe%

  ≤0.001

≤0.001

Chelating Value( mg(CaCO3 )/g )

 ≥ 339

≥ 339

PH Value50g/L:25

  2.8-3.0

2.8-3.0

Loss on Drying %

≤0.2

≤0.2

Appearance

White Crystalline powder

White Crystalline powder

Above is just part of our grades, if you want to know further information or more grades, please contact [email protected].

Packing:25kg/bag, or according to customer’s requirements for packaging. 

Storage:Store in cool and dry place,avoid direct sunlight, stack with light.

Applications: As a chelating agent, EDTA Acid can be widely used in water treatment agent, detergent additives, lighting chemicals, paper chemicals, oil field chemicals, boiler cleaning agent and analytical reagent.  

 

Ethylene Diamine Tetraacetic Acid Disodium Salt

EDTA-2Na

CAS No.: 6381-92-6     1644202829172910.jpg

Molecular formula: C10H14N2O8Na2•2H2O

Molecular weight: M=372.24

Structure


Properties: White crystalline powder. Soluble in water. Chelate with a variety of metallic ions.

Quality Specification 

Testing Items

Specifications

Quality product

Top-quality product

Content %

≥ 99.0

≥ 99.50

ChlorideCl%

≤ 0.02

≤ 0.01

SulfateSO42-%

≤ 0.02

≤ 0.02

NTA %

                 ≤ 1

≤ 0.10

Heavy MetalPb%

  ≤ 0.001

≤ 0.001

Fer rumFe%

  ≤ 0.001

≤ 0.001

Chelating   Value( mg(CaCO3 )/g )

≥ 265

≥ 265

PH Value50g/L:25

4.0-5.0

4.0-5.0

Transparency(50g/L,60 water solution,   stirring for 15min)

Clear and   Transparent without Impurities

Clear and   Transparent without Impurities

Appearance

White Crystalline powder

White Crystalline powder

Above is just part of our grades, if you want to know further information or more grades, please contact [email protected].

Packing: 25kg/bag, or according to customer’s requirements for packaging. 

Storage:Store in cool and dry place , avoid direct sunlight, stack with light.

ApplicationsEDTA-2Na can be widely used as a bleach fixing liquid color photosensitive material and dyeing auxiliary, fiber treating agent, cosmetic additive, blood anticoagulant, complexing agent, stabilizer, detergent, synthetic rubber, polymerization initiator and heavy metal quantitative analysis agent etc.

 

 

Ethylene Diamine Tetraacetic Acid Tetrasodium Salt

EDTA-4Na

CAS No.: 64-02-081644202945847519.jpg

Molecular formulaC10H12N2O8Na4•4H2O

Molecular weightM=452.23

Structure

 


Properties: White crystalline powder. Soluble in water. Chelate with a variety of metal ions.

Quality Specification 

Testing Items

Specifications

Quality product

Top-quality product

Content %

≥ 99.0

≥ 99.5

ChlorideCl%

≤ 0.02

≤ 0.01

SulfateSO42-%

≤ 0.05

≤ 0.02

NTA %

≤ 1

≤ 0.1

Heavy MetalPb%

≤ 0.001

≤ 0.001

Fer rumFe%

≤ 0.001

≤ 0.001

ChelatingValue( mg(CaCO3 )/g )

≥ 220

≥ 220

PH Value50g/L:25

10.5-11.5

10.5-11.5

Bulk density

700-950

700-950

Apperance

White or OFF-white Granular Crystalline   powder

White or OFF-white Granular Crystalline   powder

Above is just part of our grades, if you want to know further information or more grades, please contact [email protected].

Packing: 25kg/bag, or according to customer’s requirements for packaging. 

Storage:Store in cool and dry place , avoid direct sunlight, stack with light.

ApplicationsAs a chelating agent, EDTA-4Na can be widely used in industrial cleaning, daily chemicals, paper and textile, trace element fertilizer, photographic chemistry, printing ink, medicine, food, polymerization reaction, chemical coating etc.