Shandong Kairui Chemistry Co., Ltd.  is a professional hedp2na manufacturer, the company produces 8 series of hedp/pbtc/atmp more than 100 products to meet the needs of different customers.

HEDP (1-hydroxyethylphosphonic acid) and HEDP•Na2 (1,2-dihydroxyethylidenebisphosphonic acid) are both hydroxyethylphosphonic acid compounds, and there are some differences between tha:

Chaical structure: HEDP is an abbreviation for hydroxyethylphosphonic acid with the chaical formula C2H8O7P2. HEDP-2 is an abbreviation for 1,2-dihydroxyethylidene diphosphonic acid with the chaical formula C2H6O7P2Na2.

Functional properties: HEDP and HEDP-2 are compounds with chelating effect, with good corrosion and scale inhibition performance, commonly used in water treatment, metal corrosion inhibition and other fields.

Application scope: HEDP is widely used in industrial water treatment, oil extraction, paint, textile and other fields. HEDP-2 contains two hydroxyethyl groups in its molecule, which has h3er complexing performance and industrial application value.

Appearance: HEDP is often white crystalline powder, while HEDP-2 is usually colorless or light yellow crystalline powder.

It should be noted that the above are only some basic differences between HEDP and HEDP-2, and the specific properties and applications need to refer to the relevant chaical literature and data. In actual use, please select the appropriate compound according to the specific needs and circumstances.

Shandong kairui Chemical is a professional AMPS sodium salt manufacturer

Shandong Kairui Chemistry Co., Ltd. is located in Xuecheng Chemical Industrial Zone of Zaozhuang City, plant size is around 67,000 m², adopts advanced continuous mass production technology and DCS automatic control system. Built with 5 workshops for Phosphonates, Polycarboxylic Polymers, Biocides etc., company’s monomers production capacity achieve 280,000 tons per year. Besides industrial water treatment, our products are also widely used in oilfield, detergents, textile & dyeing, paper-making, seawater desalination and other fields.

Shandong Kairui Chemical is a professional manufacturer of industrial fungicides

Shandong Kairui Chemistry Co., Ltd. is located in Xuecheng Chemical Industrial Zone of Zaozhuang City, plant size is around 67,000 m², adopts advanced continuous mass production technology and DCS automatic control system. Built with 5 workshops for Phosphonates, Polycarboxylic Polymers, Biocides etc., company's monomers production capacity achieves 280,000 tons per year. Besides industrial water treatment, our products are also widely used in oilfield, detergents, textile & dyeing, paper-making, seawater desalination and other fields.

Sodium polyacrylate dispersant is an important polymer compound with a wide range of uses:
I. Uses in the field of coatings and paints
Pigment dispersion

- Polyacrylic Acid Sodium Salt Solid can be adsorbed on the surface of pigment particles. Due to its molecular chain with a large number of carboxyl and other polar groups, these groups can prevent the pigment particles from agglomerating in the coating system through electrostatic repulsion and spatial site resistance effect. For example, in water-based coatings, the dispersion effect is very good for inorganic pigments such as titanium dioxide. When the pigment particles are evenly dispersed, the color of the paint is more uniform and the covering power can be effectively improved. - It also improves the fluidity of the pigment, which makes the paint easier to brush or spray during the construction process and reduces the probability of defects such as sagging and orange peel. 2.
Improve paint stability

In the pulp bleaching process, EDTMPS is mainly used as a chelating agent to raove or control metal ions in the pulp, especially transition metal ions such as iron and manganese. These metal ions catalyze the decomposition of bleaching agents (e.g. hydrogen peroxide), which reduces bleaching efficiency and may lead to yellowing of the paper.

In industrial circulating cooling water systems, PAPEMP can effectively prevent the formation of scale. Scale is mainly composed of calcium carbonate, calcium sulfate and other substances. PAPEMP can chelate with calcium ions and other scale - forming ions, so that these ions are kept in a dissolved state and do not precipitate to form scale, thereby improving the heat transfer efficiency of the heat exchanger and reducing energy consumption.
It also has a certain corrosion - inhibiting effect. By adsorbing on the metal surface, it forms a protective film to isolate the metal from corrosive substances such as oxygen and water in the water, thereby slowing down the corrosion rate of the metal.

The main uses of polyacrylic acid (PAA) in environmental protection include:

1. Wastewater treatment: Polyacrylic acid is widely used in wastewater treatment due to its adsorption, desorption and precipitation properties. It can adsorb heavy metal ions, organic matter and pigments and other pollutants in wastewater, and at the same time form a precipitation in wastewater, separating suspended solids, and playing a role in purifying the water body.

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) is an organophosphate compound widely used in industrial, agricultural and medical applications. Its main advantages and disadvantages are listed below:

When HEDP (Hydroxyethylidene Diphosphonic Acid) is mixed with other chemicals, the following aspects need to be observed to ensure its chemical stability:
I. Dosage control
The dosage of HEDP should be adjusted according to the water quality (e.g., hardness, pH) and the specific application environment to avoid overdose or underdose. Overdosage may lead to side effects such as scaling, corrosion or affecting other chemical reactions. By precisely controlling the dosage, you can ensure that HEDP works optimally in the mixed system while avoiding unnecessary chemical changes.
Second, compatibility check
HEDP should be compatible with other water treatment chemicals (e.g. biocides, disinfectants, flocculants, etc.). Before use, it is recommended to confirm the compatibility of different chemicals through small-scale tests. If there is a compatibility problem, it may affect the effectiveness or even produce adverse reactions. Compatibility check is an important step to ensure the chemical stability of HEDP.
Third, pH control
The effect of HEDP is usually closely related to the pH value of water. When adding HEDP, the pH of the water needs to be monitored and adjusted to ensure its optimal performance. Certain scale inhibitors work best in a specific pH range, so dosing HEDP in the appropriate pH range according to its characteristics helps maintain its chemical stability.
IV. Temperature control
Some scale inhibitors may degrade or fail at high temperatures, although HEDP can remain stable at high temperatures (below 250℃), but in practical applications, the temperature of dosing still needs to be controlled according to the process conditions. Avoid unnecessary chemical changes of HEDP caused by too high temperature.
V. Storage conditions
HEDP should also maintain its chemical stability during storage. Special attention needs to be paid to storage conditions, such as avoiding direct sunlight, high temperature or moisture. HEDP should be placed in a dry, cool place and avoid mixing with other chemicals to minimize the risk of decomposition or deterioration.
VI. Attention to protection and monitoring
Safety protection: HEDP sometimes contains irritating or corrosive components, so it is necessary to wear appropriate protective equipment, such as gloves, glasses, protective clothing, etc. when operating. Avoid contact between HEDP and eyes and skin. Once splashed on the body, flush with plenty of water immediately.
* **Periodic inspection**: Before and after the injection of HEDP should be regularly checked the water quality, especially the water hardness, dissolved oxygen, pH value and other indicators. This helps to detect changes in water quality in time to ensure that HEDP maximizes its effect, and also helps to monitor the chemical stability of HEDP in the mixed system.