EDTA, EDTA-2Na, EDTA-4Na
1. EDTA
Other names: EDTA, EDTA Acid, EDTA pure acid, EDTA Free acid, H4EDTA, Diaminoethanetetraacetic acid, Edetic acid, Edetate, Ethylenedinitrilotetraacetic acid, Versene, Ethylene diamine tetraacetic acid, celon A, gluma cleanser, versene acid, nervanaid B acid, nullapon B acid, tetrine acid, trilon BS, vinkeil 100, warkeelate acid, Dissolvine Z, 2-[2-(Bis(carboxymethyl)amino)ethyl-(carboxymethyl)amino]acetic acid
Molecular Formula: C10H16N2O8
Molecular Weight: 292.24
Chemical Formula:
HOOCH2C CH2COOH
N-CH2-CH2-N
HOOCH2C CH2COOH
FEATURE: EDTA is a white crystal powder. Its melting point is240℃(decomposition). Its solubility in water is0.5g/L(25℃). It is insoluble in common organic solvents. It is soluble in boiling water 160 times as much, and soluble in alkali solvents like sodium hydroxide. At150℃, it shows the tendency to depart from carboxyl.
QUALITY SPECIFICATION:
Exterior: White powder.
Content%: ≥99.0
Test on dissolving in sodium carbonate: pass
Residue after burning %:≤0.15
Chloride(CI) Content%:≤0.01
Sulfate(SO4) Content%:≤0.1
Iron(Fe) Content%:≤0.001
Heavy metal%(Pb): ≤0.001
MAIN APPLICATION: An agent for chealte, EDTA is mainly used for water treatment, as an additive to detergent, chemical for photography, paper-making and oil-field. It is also used as detergent for boiler cleaning and reagent in chemical analysis.
1. High molecular chemical industry: EDTA is used as polymetization activator for butyl bezene latex, and polyreaction terminator in acrylic fibre poiduction.
2. Daily chemicals: EDTA is used as additive to detergent, skin cream and hair-conditioner.
3. Paper-making: EDTA is used for treating the steamed fibre. It will promote the whiteness of paper and reduce the incrustation in the steamer.
4. Pharmaceutical industry: Through cyclopolymerization with methyl amide, EDTA is made into ethyl imide, a remedy for psoriasis. It is also a stablizer for some vaccines and an antihaemoagglutinin.
5. Textile dyeing and printing: EDTA will promote color ability of the dyestuff and brightness of the dyed fabric.
PACKING:PP bag,25kg/bag. 20MT /20’FCL, 18 MT /20’FCL if with pallet packing.
STORAGE: Be stored on the shelf or pallet in dry and ventilated warehouse. Avoid direct sunshine, breakage of the bags, humidity and contamination and handle with care.
2. EDTA-2Na
Molecular Formula: C10H14N2Na2O8·2H2O
Molecular Weight: M=372.24
CAS No.: 6381-92-6 (Dihydrate) ; 139-33-3 (Anhydrous)
Chemical Formula:
Na OOCH2C CH2COONa
N-CH2-CH2-N ·2H2O
HOOCH2C CH2COOH
Feature: EDTA disodium salt is a white powder. It contains two crystal waters. When dried, it easily lose crystal water. It is easily soluble in water. The PH value of 5% water solution is 4-6. it is hardly soluble in organic solvents like alcohol or ethyl ether. The product is obtained from synthetic process.
Quality Specification：
|
Exterior |
White powder |
|
Content ≥ % |
99.0 |
|
Reaction of water solution |
pass |
|
Complexation test |
pass |
|
Clarification test |
pass |
|
Fe%≤ |
0.005 |
|
Heavy metal （Pb）%≤ |
0.005 |
|
Sulfate % (SO42-) ≤ |
0.1 |
|
Cl%≤ |
0.01 |
Main Application: Disodium salt is used in industrial cleaners, detergent, liquid soap, shampoo, agricultural chemicals, electroplating, printing and dying in textile processing, fixer solution for development of color film, water cleaner and PH modifier etc.. When stating the redox reaction for the polymerization of butyl benzene rubber, it is used as part of activator for the complexation of iron ion and control of polymerization speed.
PACKING: PP bag,25kg/bag,
21MT/20’FCL without pallet, 18MT can if palletized.
Storage: Be stored on shelves or pallet in dry, cool and ventilated warehouse. Avoid breakage of the bags, humidity and contamination
3. EDTA-4Na
Other Names: EDTA-4Na, EDTA NA4, (Ethylenedinitrilo) tetraacetic acid tetrasodium salt; tetrasodium EDTA
1). EDTA-4Na.2H2O
Molecular Formul: C10H12N2Na4O8·2H2O
Molecular Weight:M=416.20
CAS NO.: 10378-23-1 CAS NO.:64-02-8(Anhydrous)
Na OOCH2C CH2COONa
N-CH2-CH2-N ·2H2O
NaOOCH2C CH2COONa
Feature: EDTA-4Na·2H2O is a white crystal powder, including 2 crystal water. It is easily soluble in water and water solution is basuity. It is slightly soluble in organil solvents like alcohol. When heated, It easily loses crystal water.
Quality Specification:
EXTERIOR WHITE POWDER
CONTENT≥％ 99.0
CHELATING VALUE PH=11 234mgCaCO3/g
PH(1% WATER SOLUTION) 10.5-11.5
HEAVY METAL PB#％≤ 0.002
DRIED WEIGHTLESSNESS ％≤ 3-5
IRON Fe＃％≤ 0.001
STORAGE25℃ LONG TIME
Main Application: EDTA-4Na is an important chelant of metal ion. It is used as additive, activator, clean water agent and metal ion masking composition for cleanse industry, polyreaction, watertreatment, color photosensitive and paper industry.
Packing: P/P bag,20kg/bag or plastic bag in carton barrel,20kg/barrel. 15MT/20’FCL, 13MT/20’FCL if palletized.
Storage: To avoid sunscreen, damp proofing and fire proofing. Storage as non-hazardous product's request.
2). EDTA-4Na. 4H2O
PRODUCT NAMES: EDTA-4Na; EDTA NA4; (Ethylenedinitrilo) tetraacetic acid tetrasodium salt; tetrasodium EDTA
MOLECULAR FORMUL:C10H12N2Na4O8·4H2O
Na OOCH2C CH2COONa
N-CH2-CH2-N 4H2O
NaOOCH2C CH2COONa
Molecular Weight:M=452.23
CAS NO.: 13254-36-4 CAS NO.:64-02-8(Anhydrous)
FEATURE: EDTA-4Na. 4H2O (EDTA TETRASODIUM) is a white crystal powder with 4 crystal water. It is easily soluble in water and water solution is alkaline. It is slightly soluble in organic solvents like alcohol. When heated, it easily loses crystal water.
QUALITY SPEIFICATION:
EXTERIOR WHITE POWDER
CONTENT≥％ 99.0
CHELATING VALUE PH=11，≥ 219mgCaCO3/g
PH(1% WATER SOLUTION) 10.5-11.5
HEAVY METAL （Pb）％≤ 0.001
DRIED WEIGHTLESSNESS ％≤ 3-5
Fe ％≤ 0.001
STORAGE25℃ LONG TIME
PACKING: PP bag,25kg/bag, 19.5MT/20’FCL, 16.25MT/20’FCL if palletized.
STORAGE: Be stored on shelf or pallet in dry, cool and ventilated warehouse. Avoid breakage of the bags, humidity and contamination.
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