EDTMPS is a nitrogen-containing organic phosphonic acid, which is a cathodic corrosion inhibitor. Compared with inorganic polyphosphate, the corrosion inhibition rate of EDTMPS is 3 ~ 5 times higher than that of inorganic polyphosphate. EDTMPS can be mixed with water, non-toxic and pollution-free, good chemical stability and good temperature resistance.
Items |
Index |
Appearance |
Clear yellow to umber transparent liquid |
Active content (EDTMPS)% |
28.0min |
Organic phosphonic acid(as PO43-)% |
10.0min |
phosphonic acid(as PO33-)% |
5.0 max |
phosphonic acid(as PO43-)% |
1.0 max |
pH (1% water solution) |
9.5-10.5 |
Density (20℃)g/cm3 |
1.25min |
Chloride(CL-)% |
3.0 max |
When the circulating cooling water is added alone, when the general dose of 2~10mg/L.
EDTMPS is packaged in plastic barrels, 25kg per barrel or determined according to user needs. Store in a cool room for six months.
EDTMPS is weakly alkaline. Attention should be paid to labor protection during operation. Contact with skin and eyes should be avoided. Rinse with plenty of water immediately after contact.