The main product of this website is HEDP, an organic phosphonic acid in water treatment. HEDP can be used as a scale inhibitor or as a metal cleaner. However, there are more water treatment products in the water treatment industry.

According to different USES and processes, the main types of water treatment chemicals are as follows.

Synergetic preparation can effectively prevent the formation of scale and microbial viscosity, improve the system desalination rate and water yield, and prolong the service life of reverse osmosis membrane.

Circulating cooling water treatment chemicals ensure that the cooling tower, chiller, and other equipment are in the best running state. They can effectively control the microbial flora, inhibit the production of scale, and prevent corrosion of pipeline equipment. To reduce energy consumption and prolong the service life of the equipment.

Synergetic preparation can prevent the boiler from corroding and scaling. It can stabilize the boiler water quality and ensure the normal operation of the boiler. Synergistic combination preparation can reduce the boiler consumption and prolong the service life of the boiler.

In addition, the preparation of wastewater treatment needs to be done well. Water treatment technology combined with depth treatment can be used for a long time. It also saves a lot of water.

When the system is of high hardness and alkalinity, chelators and dispersants are not sufficient to prevent them from settling. If there are no dispersants, the growth of the dirt will follow the general rule of the growth of the crystal, and the formation of dirt will be firmly attached to the surface of the heat exchanger.

If there is enough of dispersant, scale particles (is made up of hundreds of thousands of CaCO₃ molecules) surrounded by adsorption and dispersant, prevent dirt particles are arranged in its rules on the crystal lattice of the crystal lattice, resulting in a dirt soft and easy to be water washed away.

There are many kinds of scaling on the surface of the metal, such as oil-soluble scaling, water-soluble scaling, metal rust, and scaling. HEDP is mainly used to clean inorganic scale, alkaline oxide, and hydroxide of the metal surface.

The commonly used organic acids metal cleaning agent is HEDP acid. In the process of pickling, HEDP acid cannot only dissolve scaling but also play a role in inorganic scale.

On the one hand, the composition of inorganic salts changes, and some inorganic salts are converted to soluble salts. For example, calcium carbonate and magnesium carbonate are converted to calcium chloride and magnesium chloride by hydrochloric acid.

The other part is converted into new insoluble salts, but the new insoluble salts formed in a short time are dispersed and easily washed away.

Therefore, the effective utilization of the characteristics of HEDP can greatly reduce the formation of the scale of the metal surface. So that the metal equipment can work better in production.

In the water treatment industry, people all know how important the HEDP is and how widely used it is. After reading this article, you can see why does HEDP so popular.

HEDP has excellent corrosion resistance to carbon steel, copper and copper alloys. It has good dispersion properties for calcium carbonate and calcium phosphate. HEDP is the most important scale inhibitor in IROCHEM.

HEDP is mainly used in the open circulating cooling water treatment system. This acid is especially suitable for copper equipment system. HEDP acid can be used for high pH, high alkalinity, and high hardness water. It is one of the ideal water treatment agents that do not adjust pH.

HEDP is the main agent for water quality stabilization of circulating cooling water system. It is an organic phosphonic acid water treatment agent. This kind of water treatment agent products also include some other varieties, such as HEDP and DTPMP. Organic phosphonic acid is a water treatment agent developed in the late 1960s and confirmed in 1970s.

Organic phosphoric acid has greatly improved water treatment technology. Compared with other organic polyphosphoric acids, HEDP has the characteristics of good chemical stability, low hydrolysis, high-temperature resistance, and small dosage.

It is a cathodic inhibitor and is a nonchemical equivalent scale inhibitor. HEDP acid has an excellent chelating ability for many metal ions such as calcium, magnesium, copper, and zinc.

Even for the inorganic salts such as CaSO4, CaCO3, and MgSiO3, HEDP has a good inactivation effect. HEDP has a large number of applications in water treatment industry. It is also one of the main products of IROCHEM. One thing for sure, HEDP is low-toxicity. In the biotoxicity test, the mice subcutaneous test LD50 was 486.4 mg/kg.

The HEDP acid is also used as a metal cleaner in the textile industry due to its good corrosion inhibition capability.

All kinds of condenser, heat exchanger and filter, reverse osmosis equipment are widely used in textile industry. Due to the change in water quality and temperature difference, it is very easy to cause fouling in the equipment. That can greatly reduce the heat transfer and filtration efficiency of the equipment, resulting in a shutdown. Traditional methods are usually manual cleaning, high-pressure water washing, and chemical cleaning.

These methods not only have a poor cleaning effect but also cause corrosion and damage to metal tube and screen. And shortened the service life of the equipment. Currently, HEDP is used as a metal cleaning agent in the textile industry to deal with the scaling phenomenon.

HEDP can effectively remove scale, calcium oxide, silt and rust from water equipment. It has a remarkable effect in cleaning technology of carbon steel, stainless steel, copper, and other materials.

In recent years, the demand for HEDP market in China has been increasing year by year. In 2017, the demand of HEDP in China is about 1456,000 tons. And it is estimated that the HEDP acid demand will reach 2608,000 tons by 2020.

HEDP is short for hydroxyethylidene diphosphonic acid. Hydroxyethylidene diphosphonic is widely used in petroleum, chemical, metallurgy, transportation, light industry, textile, and other industries. HEDP (hydroxyethylidene diphosphonic acid) can be used as a corrosion inhibitor, scale inhibitor, metal chelating agent, peroxide stabilizer, peroxide curing agent, complexing agent of electroplating industry, electronics industry cleaner, and daily chemical additives, etc.

In practical applications, HEDP acid and other water treatment agents have a better synergistic effect when used in combination. For this reason, it is important to note that the antagonism between the components is due to improper compounding. That will cause the effect to be reduced or lost. At the same time, we should make full use of the synergistic effect to increase the HEDP effect.

In addition, most water treatment systems are open systems. These systems have a certain amount of emissions. Therefore, when using HEDP, you should consider the impact on the environment.

Common HEDP products and its salts include HEDP 30, HDEP 60, HEDP liquid, HEDP solid, HEDP Na, HEDP Na₂, HEDP Na₄, HEDP Kx, etc.

HEDP (Hydroxyethylidene Diphosphonic Acid) is an odorless organic phosphorus chemical compound. For one thing, it is colorless to yellowish acidic liquid.

In recent years, the demand for HEDP market in China has been increasing year by year. In 2017, the demand of HEDP acid in China is about 1456,000 tons. And it is estimated that the HEDP demand will reach 2608,000 tons by 2020.

The formation and development of the water treatment industry are accompanied by the rapid development of the economy and the process of urban industrialization. The shortage of water resources and the enhancement of human environmental awareness provide the driving force and a huge market for the development and growth of the water treatment industry.

HEDP is the development of China with the introduction of modern water treatment technology and development. HEDP developed later than developed countries, but it is growing fast. It has developed a system of independent development and industrialization of various water treatment reagents including HEDP.

The development of Chinese water treatment agent can be divided into two stages. From 1974 to 1989, the first stage was the introduction of absorption and localization. The goal of this stage is to establish a research and manufacturing system for water treatment in China. From 1990 to 2000, the second stage was the innovation and development and industrialization. The goal is to establish a water treatment agent and technology system with independent intellectual property rights in China.

So far, China has more than 100 kinds of water treatment products, such as HEDP and DTPMP. HEDP and HEDP salts have basically met the domestic demand from production to quality and can also be exported. Technically, some production technology and performance have been at the international leading level.

Due to the huge potential of HEDP acid market, the industry competition is increasingly fierce. However, most enterprises are small in scale and low in technology. And the product homogenization is serious. The competition in the industry is mainly reflected in the quality, brand and marketing channels. Among this competition, brand formation is a long-term accumulation process. And the brand competition is also a comprehensive reflection of the competition in hydroxyethylidene diphosphonic acid industry.

New enterprises continue to enter the water treatment industry. HEDP market has a new development situation. Upstream raw material prices continue to rise, leading to lower industry profits. Therefore, the market competition in HEDP industry is increasingly fierce. IROCHEM focuses on innovation. In order to develop better, IROCHEM fully understands the development of the industry and our position in the industry. IROCHEM will provide high-quality products and services to global partners.