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Ethylenediaminetetraacetic acid disodium salt

( EDTA-2Na)

Synonyms:  EDTA Disodium Salt, EDTA-2Na...                                                                                                                                      Molecular formula: C10H14N2Na2O82H2O
Molecular weight: 372.24
CAS No.: 6381-92-6 (Dihydrate)       EINECS No.: 205-358-3       H.S.Code:2922499990
Properties: EDTA-2Na is a white powder with two crystal waters, easy to lose crystal water when dried and easy to soluble in water, but hard to soluble in organic solvents like alcohol or ethyl ether. The PH value of 5% (25℃) water solution is 4.0-6.0.

Quality Specification:

ITEMS

INDUSTRY GRADE

ACS GRADE

REAGENT GRADE

AR GRADE

GR GRADE
PURITY(EDTAˇ2H2O)% ≥

99.0

99.0~101.0

99.0

99.5

REACTION OF WATER SOLUTION % ≤

PASS

 

 

PASS

COMPLEXATION TEST

PASS

 

 

PASS

CLARIFICATION TEST

PASS

 

PASS

PASS
CHLORIDE(CL-)  % ≤

0.01

 

0.005

0.004
SULPHATE(SO42-)% ≤

0.1

 

0.02

0.01
IRON(Fe)% ≤

0.005

0.01

0.001

0.0005
HEAVY METAL(Pb)% ≤ 0.005 0.005 0.001 0.001
COPPER(Cu)       0.00025
NITRILOTRIACETIC ACID % ≤   0.1   0.05
WATER INSOLUBLE MATTER  % ≤   0.005    
PH OF A 5% SOLUTION AT 25°C   4.0~6.0 4.0~5.0 4.0~5.0

MP

 

248°C(DEC.)

 

 

Use: This product is the water quality steady agent which used in water treatment agent, cleaner, boiler scale inhibitor, corrosion inhibitor. And it is also used in photographic chemicals, detergent, textile auxiliaries, fiber treatment agent, leather chemicals, paper chemicals, medicament, chemicals (whether) refined, synthetic rubber, micronutrient fertilizer production and sea farming, etc.

Packaging: In paper bag of 25kg net each with inner sealed plastic bags. or according to the user’s requirements and also conforms to safety rules/standards valid in our country in packing

Storage :  Store in a cool, dry, ventilated warehouse, package. We must prevent the sun and rain.

Note : We can manufacture many other different grades according to buyers' requirements.

 
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