Hydroxyethylidene diphosphonic acid HEDP

Hydroxyethylidene diphosphonic acid


1. Product performance
It is an organic phosphonic acid scale and corrosion inhibitor that can interact with various metals such as iron, copper, and zinc. The ions form stable complexes that can dissolve oxides on metal surfaces. It can still play a good role in corrosion and scale inhibition at ℃, is still very stable at high values, is not easy to hydrolyze, and is not easy to decompose under general light and heat conditions. Its acid and alkali resistance and chlorine oxidation resistance are better than other organic phosphonic acids (salts). It can form a six-ring chelate with metal ions in water, especially calcium ions, so it has good anti-scaling effect and obvious solution limit effect. When used in combination with other water treatment agents (water treatment agents), the performance create ideal synergy effects.
2. Quality indicators/

Items

Indicators
Appearance

Colorless or light yellow transparent liquid


White crystalline solid
Active ingredient (in units)






Phosphorous acid (in units)






Phosphoric acid (in units)

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Chloride (in units)





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Active ingredient (in
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3. Application scope and usage
Widely used in industrial circulating cooling water systems such as electric power, chemical industry, metallurgy, fertilizer, etc., as well as medium and low pressure boilers, oil field water injection and oil pipelines In the light textile industry, it can be used as a cleaning agent for metals and non-metals, a peroxide stabilizer and color-fixing agent in the bleaching and dyeing industry, and a complexing agent in the cyanide-free electroplating industry. As a scale inhibitor, the concentration is generally used. As a corrosion inhibitor, the concentration is generally used. As a cleaning agent, it is usually used in conjunction with a polycarboxylic acid type scale inhibitor and dispersant.
4. Packaging and Storage
Liquids are packed in plastic barrels, and each barrel or solid is packed in plastic woven bags, net weight per bag. Store in a cool and ventilated place indoors, away from moisture. The storage period is ten months.
5. Safety Protection
It is acidic. Avoid contact with eyes and skin. Once splashed on the body, rinse immediately with plenty of water.