2025年1月

Copper ion chelating agents refer to a class of chemical substances that can form stable complexes with copper ions. They are usually organic compounds containing specific functional groups that can coordinate with copper ions to form complexes. Copper ion chelating agents can be divided into two main types: ligands and chelating agents.

Ligands: Ligands are functional groups in compounds that can form Coordinate covalent bond with metal ions. In the coordination chemistry of copper ions, some common ligands include organic amines, organic acids, organic sulfides, etc. These ligands form Coordinate covalent bond with copper ions by providing one or more lone pairs of electrons. The selection and structure of ligands can regulate the coordination environment and properties of copper ions.

Chelating agent: Chelating agent refers to a kind of compound with multiple coordination sites, which can form multiple Coordinate covalent bond to coordinate with metal ions. Among the copper ion chelating agents, the common chelating agents include some organic polyketones, nitrogen containing Heterocyclic compound, etc. These chelating agents can effectively form complexes with copper ions through multiple coordination sites and have high stability.

Copper ion chelating agents are widely used, including the following aspects:

Industrial catalysts: Copper ion chelating agents play an important role in industrial catalytic reactions. By forming complex with copper ion, the activity, selectivity and stability of the catalytic reaction can be adjusted, and the reaction efficiency and product quality can be improved.

Electroplating and Electronics Industry: Copper ion chelators are widely used in electroplating and electronics industries. They can stabilize copper ions, control the deposition rate and uniformity of copper during the electroplating process, and improve the quality and performance of the electroplating layer.

Drug and biochemical research: Copper ions play important physiological and biochemical functions in organisms. Copper ion chelating agents can be used in Drug development and related biochemical research, including the design of anticancer drugs, simulation of metal chelatase, etc.

Analytical chemistry: Copper ion chelating agents are also commonly used in Analytical chemistry in Complexometric titration, metal ion separation and determination. Their coordination reaction with copper ions can be used to detect and determine the content of copper in samples.

It should be noted that the selection of copper ion chelating agents should be based on specific application requirements and system conditions to ensure that the formed complexes have the required stability and performance.

Circular water slowdle -release stabilizer HEDP is a commonly used water treatment agent. It can play a variety of functions in the circulating water system, mainly used to prevent scale and blockage problems in the water system. Its role and use are as follows:

  1. Stop the formation of scale: Circular water often contains some dissolved inorganic salts, such as calcium, magnesium, carbonate, etc. When the temperature in the circulating water rises or the water quality changes, these inorganic salts will crystalline precipitation and form scale. Circular water -release dirt resistant agents can inhibit the crystallization and precipitation process of inorganic salts by adding specific chemicals, thereby preventing the formation of scale.
  2. Clear existing scale: For the formation of scale, circulating water slow -release dirt resistant agent also has a certain ability to clear. It can dissolve the structure and adhesion of scale by dissolving the crystalline substances on the surface of the scale, so that the scale is gradually dissolved and falling off. This can effectively clear the internal scale of the pipeline and equipment and restore the normal operation of the system.
  3. Maintaining the stable operation of the water system: The accumulation of scale will cause the circulation section of the pipeline and equipment to become smaller, increase hydropower resistance, reduce thermal exchange efficiency, and even cause overheating and blockage. The use of circulatory water slowdlene stuffing agents can effectively maintain the normal operation of the water system. It can maintain stable water quality, reduce the formation and deposition of scale, extend the service life of pipelines and equipment, and improve energy utilization efficiency.
  4. Reduce maintenance costs: Applying circulating water slow -release dirt resistant agents can reduce the maintenance costs required for cleaning, maintenance and replacement of pipelines and equipment. Through effective control and preventing the formation of scale, the frequency of cleaning, maintenance and replacement can be reduced, and operation and maintenance costs can be reduced.

It should be noted that the use of circulatory water slowdle -release dirt should be adjusted according to the specific conditions and water quality requirements of the circulating water. Before use, you should read the product manual carefully and operate in accordance with relevant standards and specifications to ensure the effect of water treatment and the normal operation of the system.

the main components of paint dispersants usually include organic solvents, Surfactant and stabilizers.

Organic solvents: common organic solvents including acetone, methanol, ethanol, butanol, etc. , used to paint pigments dissolved, so that it becomes easier to smear and uniform dispersion.

SURFACTANT: the Surfactant reduces the surface tension of the liquid, causing the pigment to disperse evenly and preventing the pigment from precipitating in the paint. Common Surfactant include sodium dodecyl benzene sulfonate, octyl phenol polyoxyethylene ether, etc. .

Stabilizer: stabilizer can prevent pigment in paint caking and precipitation, improve the stability of paint and shelf life. Common stabilizers include polyacrylate, polyvinyl alcohol, etc. .

In addition, paint dispersant ingredients may also include preservatives, antioxidants, etc. , to improve the paint antibacterial, antioxidant properties. Different types of paint dispersants may vary in composition, the specific composition of the product according to the formula to determine.

The dosage of Ro scale inhibitor will vary according to the specific situation, including the water quality of the water source, membrane materials used and equipment requirements. In general, the amount of anti-scaling agent should comply with the following principles:
according to water quality analysis: first, the need for water quality analysis, understanding the water hardness, salinity and other pollutants. These data can be used as the basis for determining the dosage of scale inhibitor.
Follow the manufacturer’s advice: according to the use of specific scale inhibitor products, refer to the manufacturer’s instructions and recommended dosage. These guidelines are generally based on experimental and empirical data, which can provide a better dosage of reference.
Consider membrane components: scale inhibitor dosage should also be based on the type of reverse osmosis membrane used and requirements for adjustment. Different types of membranes may have different adaptability to scale inhibitors, so they need to be added without damaging the membrane components.
System monitoring and adjustment: once adding scale inhibitor, the performance of the system and water quality should be monitored regularly, and necessary adjustment should be made according to the monitoring results. This can ensure that the amount of scale inhibitor can adapt to the actual operation of the system.
In a word, the dosage of Ro scale inhibitor should be determined according to the specific conditions. It is suggested that the dosage should be adjusted on the basis of consultation with the manufacturer, reference to the product specification and systematic monitoring. This can achieve a better scale inhibition effect and protect the performance of reverse osmosis equipment.

DTPMPA (triformic acid diphosphate) is a commonly used chelating agent, mainly used in water treatment, industrial cooling water systems and other related applications. It is a complex of many components, the main components may include the following:

  1. Triformic acid diphosphate (DTPMP) : DTPMP is the main component of DTPMPA and the source of its nomenclature. It is an organic phosphate, with good corrosion inhibition, scale inhibition and chelating metal ions.
  2. Methanol: Methanol is commonly used as a solvent or diluent for dtmpa to adjust its concentration and performance.
  3. Alkalinity: to adjust the pH of dtmpa and increase its solubility, small amounts of alkalinity, such as sodium hydroxide acid (NaOH) or potassium hydroxide acid (Koh) , may be added.
  4. Other additives: depending on the specific requirements, may be added some auxiliary ingredients, such as buffer, stabilizer, co-solvent, etc. , to enhance the performance and stability of dtmpa.
    It is important to note that different manufacturers and products may use different formulations and composition combinations, there may be subtle differences. When using DTPMPA or any other chemical, read the product instructions carefully and follow the correct method of use and safe operating procedures to ensure safe use and desired results.

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