Ethylene Diamine Tetra(Methylene Phosphoric Acid) Sodium (EDTMPS) |
CAS Number | 1429-50-1 |
Appearance | Clear yellow to umber transparent liquid |
Assay | 30.0min |
pH | 9.5-10.5 |
Density | 1.25min 1/420C1/4g/cm3 |
Chloride | 3.0max |
Packing | 250 kgs |
Use | EDTMPS 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 & dyeing industry. When used alone, 2~10mg/L is preferred. When built with HPMA by ratio ETDMP:HPMA=1:3, it can be used for low pressure boiler. It can also be built with BTA, PAAS and zinc salt. |
Storage | Storage for ten months in room shady and dry place. |
Phosphoric acid (as PO43)% | 5.0max |
Organic phosphonic acid (as PO43) % | 1.0max |
Total phosphonic acid (as PO43)% | 10.0min |
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