Ethylene Diamine Tetra (Methylene Phosphonic Acid) Sodium
No.: WTP-031
GENERAL INFORMATION
|
• HS CODE |
29212190 |
|
• CAS NO |
1429-50-1 |
|
• GRADE |
Technical Grade |
|
• FORMULA |
C6H12O12N2P4Na8 |
|
• MOLECULAR WEIGHT |
612.13 |
PROPERTIES
|
• Appearance |
Clear yellow to umber transparent viscous liquid |
|
• Solubility |
Soluble in water |
|
• pH(1% water solution) |
9.5～10.5 |
|
• Stability |
Stable under normal temperature |
|
• Density(20℃,g/cm3) |
≥1.25 |
SPECIFICATIONS
|
• Active component (as EDTMPS)% |
≥28.0 |
|
• Organic phosphonic (as PO43-)% |
≥10.0 |
|
• Phosphorous acid (as PO33-)% |
≤5.0 |
|
• Phosphoric acid (as PO43-)% |
≤1.0 |
|
• Chloride (as Cl-) % |
≤3.0 |
APPLICATION
• This product can be used as corrosion inhibitor in circulating cool water system and boiler water. It is a chelating agent in non-cyanogen electroplating industry and a water-softening agent in printing and dyeing industry. When used alone, 2~10mg/L is preferred. When built with HPMA by ratio ETDMP:HPMA=1:3, it can be used in water treatment of low pressure boiler. It can also be built with BTA, PAAS and zinc salt.
PACKING
• 25kg in plastic barrel, or confirmed by clients.
STORAGE AND TRANSPORTATION
• Store for ten months in cool and dry place.
• It is acidic, avoid contacting with eyes and skin, once contacted, flush with water
