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 Products
Ethylenediaminetetraacetic acid disodium salt
( EDTA-2Na)
Synonyms:
EDTA Disodium Salt, EDTA-2Na...
Molecular formula: C10H14N2Na2O8•
2H2O
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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