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Fax: +86-20-22309808
Tel:+86-20-22302666
E_mail: dc@gzdiecheng.com mrpeng@gzdiecheng.com
Products
Ethylene Diamine Tetra (Methylene Phosphonic Acid) EDTMPA
Product name: Ethylene Diamine Tetra (Methylene Phosphonic Acid)
CAS: 1429-50-1
Molecular formula: C6H20N2O12P4
Molecular Weight: 436.13
Structure
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Properties & Use
White crystalline powder, m.p. 215-217℃, hardly soluble in water, easily soluble in ammonia.
It has very storng chelating power to metal ions; high purity, non-toxic; as cleaning agent of semi-conductors used in IC.
II. Spec.
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Item
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Index
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|
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Premium grade
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First grade
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|
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Appearance
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White crystalline powder
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|
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Active component (EDTMPA) /% ≥
|
99.0
|
95.0
|
|
Organic phosphonic(PO43-) /% ≥
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84.0
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82.0
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Titration purity / % ≥
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95
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Drying Loss / % ≤
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2.0
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|
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Iron (Fe) /ppm ≤
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5
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|
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Chloride (Cl) content / % ≤
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0.1
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|
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pH-value (1% aqueous solution) ≤
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2.0
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III. Packing & storage 25kg composite plastic woven bag or customize accoridng to customer requirements in line with export environmental protection requirements. Shelf life 12 months.