Ethylenediamine tetramethylene phosphonic acid (sodium) EDTMPS
Classification:
Product Introduction
Performance and Usage
It is a nitrogen-containing organic polyphosphonic acid, a cathodic corrosion inhibitor, compared with inorganic polyphosphate, the corrosion rate is 3 to 5 times higher. It is miscible with water, non-toxic and non-polluting, has good chemical stability and temperature resistance, and still has good scale inhibition effect at 200 ℃. In aqueous solution can be dissociated into 8 positive and negative ions, which can be chelated with multiple metal ions to form multiple monomer structure macromolecular network complex, loosely dispersed in water, so that the normal crystallization of calcium scale is destroyed. The scale inhibition effect of calcium sulfate and barium sulfate scale is good.
It is used as corrosion and scale inhibitor for circulating water and boiler water, complexing agent for cyanide-free electroplating, chelating agent and oxygen bleaching stabilizer for textile printing and dyeing industry.
Technical indicators
|
Project |
Indicators |
|
pH (1% aqueous solution) |
≥ 6.0 |
|
Density (20 ℃) g/cm³ |
≥ 1.15 |
|
Solid content% |
≥ 30 |
Method of use
When it is added separately in the circulating cooling water, the general dose is 2~10mg/L. After EDTMPS and HPMA are compounded in a ratio of 1:3, they can be used for water treatment in low-pressure boilers. EDTMPS can also be used in combination with BTA, PAAS, zinc salt, etc.
Packaging and storage
Plastic drum packaging, 25kg per barrel or according to user needs to determine. Store in a cool indoor place for 12 months.
Safety and protection
It is neutral, pay attention to labor protection during operation, avoid contact with skin, eyes, etc., and rinse with plenty of water immediately after contact.
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Circular Economy Demonstration Park, Leling City, Shandong Province