Water Treatment Chemicals China Suppliers

  Microbial fouling, biofilm, and algae growth ruining your water system’s performance? Biological contamination doesn‘t just reduce efficiency – it accelerates corrosion, fouls membranes, and compromises water quality. You need a biocide you can trust. Shandong Kairui Chemical’s KR-110 (Isothiazolinone Biocide) delivers powerful, broad-spectrum microbial control: 🔹 Broad-spectrum efficacy – effective against bacteria, fungi, yeast, and algae 🔹 Fast-acting – rapid kill and control of planktonic and sessile microorganisms 🔹 Low toxicity – safe for use in industrial water systems when used as directed 🔹 Biodegradable – environmentally responsible formulation 🔹 Compatible with common water treatment chemicals – easy to integrate into existing programs 🎯 Applications: circulating cooling water, air conditioning systems, industrial process water, papermaking, oilfield water injection, and membrane protection. ⚠️ Recommended dosage varies by application – contact our te...

  🧫 Struggling with iron fouling and phosphate scale in your RO or cooling system? Traditional dispersants often fall short when it comes to complex scale and fouling combinations. You need a copolymer engineered for the toughest conditions. Shandong Kairui Chemical’s AA-AMPS Copolymer (Acrylic Acid – 2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer) offers advanced performance: ✅ Superior iron dispersion – effectively disperses iron oxide and prevents deposition ✅ Calcium phosphate scale control – outperforms conventional polymers in phosphate-rich systems ✅ Excellent calcium carbonate inhibition – keeps heat exchangers and membranes clean ✅ Chlorine resistance – maintains performance even in chlorinated systems ✅ Compatible with multiple water chemistries – adaptable to a wide range of industrial applications 🌊 Ideal for: cooling water systems, reverse osmosis pretreatment, boiler water, and oilfield produced water treatment. 💡 Recommended dosage: 2–15 mg/L depend...

 If you're running a reverse osmosis (RO) system, you know the struggle: membrane fouling, frequent cleaning, and that constant battle with scaling. It eats into your budget and cuts into your production time. That's where KR-191 RO Membrane Scale Inhibitor & Dispersant from Shandong Kairui Chemistry comes in. ✅ What it does: KR-191 is a high-performance scale inhibitor widely used in brackish water, high-salinity water, process water, and even drinking water systems . ✅ Why it matters: It delivers powerful scale inhibition across various water qualities, reduces the frequency of membrane cleaning, and can even minimize or replace acid dosing in your system . ✅ The result: Lower chemical costs, higher water recovery rates, and extended membrane life . Don't let scale steal your efficiency. KR-191 works with all membrane types and is more stable and effective than traditional SHMP (sodium hexametaphosphate) . 👉 Learn more: www.krwater.com 📧 Contact: e...

 HPMA is a low molecular weight polymeride, with average molecular weight 400-800. No toxicity, soluble in water, high chemical and thermal stability, decomposed temperature above 330℃.HPMA has obvious threshold effect under high temperature (350℃) and high pH(8.3)level, suitable to be used in alkaline water system or built with agents. It has good scale inhibition against carbonate and phosphate scales under temperature 300℃ with effective time as long as 100 hours. Due to its good scale inhibition and high temperature tolerance properties, HPMA is widely used in desalination plant of flash vaporization equipment, low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems. In addition, HPMA has good corrosion inhibition effect when used together with zinc salt. HPMA can also used as additives for cement. HPMA is usually used together with organic phosphonate at dosage of 1-15ppm for circul...

  PAPE is a new variety of water treatment chemical. PAPE has very good scale and corrosion inhibition ability. Because more than one ployethylene glycol group is introduced into the molecule, the scale and corrosion inhibition for calcium scale is improved a lot. PAPE has wonderful inhibition effect for barium and strontium scales. PAPE has admirable scale inhibition capacity for calcium carbonate and calcium sulfate,PAPE can be mixed well with polycarboxylic acid, organophoronic acid, phosphate and zinc salt. PAPE can also be used as scale inhibitor for oilfield and industrial cool water system.

  CAS No. 9003-04-7 corresponds to  Polyacrylic Acid  ( PAA ). PAA is an important polymer compound, produced by polymerization of acrylic monomer, which is water-soluble and has various functionalities, and is widely used in industry and daily life. This is a highly versatile polymeric compound with the molecular formula (C₃H₃NaO₂)ₙ. Depending on the application and form, it is also known as polyacrylic acid sodium salt, PAAS, or other trade names. Its core characteristics are extremely high water absorbency and thickening capability , which make it widely used across multiple industries: Consumer products : As a superabsorbent polymer, it is the key active ingredient in diapers, sanitary napkins , and other absorbent hygiene products. Industrial and agricultural applications : Used as a scale inhibitor in water treatment, a thickener in textile printing and dyeing, and a soil water-retention agent in agriculture. Food industry : As an approved food additive, it ...

 As freshwater scarcity intensifies, seawater desalination becomes increasingly vital. Shandong Kairui Chemistry's products support desalination operations through: Pre-Treatment: Coagulants and flocculants for solids removal Scale inhibitors for membrane protection Antiscalants for reverse osmosis systems Post-Treatment: Corrosion inhibitors for distribution systems Biocides for storage and transport Our experience in desalination applications spans multiple regions, supported by 15+ years of export experience and technical expertise in membrane system chemistry

 The oil and gas industry faces unique water treatment challenges, from scale formation in production wells to microbial contamination in waterflood operations. Shandong Kairui Chemistry provides specialized oilfield water treatment solutions: Applications: Oilfield refill water systems Produced water treatment Scale squeeze treatments Well stimulation fluids Pipeline corrosion protection Our sulfonated polymers and phosphonate products are specifically designed for the high-temperature, high-pressure, and high-salinity conditions common in oilfield operations

 Effective microbial control is essential for preventing biofouling, legionella growth, and system degradation. Kairui Chemistry's biocide product range includes: Oxidizing Biocides: Sodium hypochlorite Chlorine dioxide Bromine-based compounds Non-Oxidizing Biocides: Isothiazolinone derivatives Quaternary ammonium compounds Glutaraldehyde-based products Our biocides are effective across broad pH ranges and temperatures, with formulations designed for cooling water, oilfield, and industrial process applications

 Every water system is unique. Shandong Kairui Chemistry offers custom formulation services to address specific water treatment challenges: Customization Options: Tailored active ingredient ratios pH optimization for specific waters Compatibility adjustments Specialized packaging requirements Our R&D team works with clients to develop formulations that deliver optimal performance while minimizing chemical consumption and cost. With ISO-certified quality management and third-party testing (SGS/BV), product reliability is guaranteed

 KR-0100 is a universal composite reverse osmosis membrane antiscalant developed for most industrial desalination, pure water preparation and small seawater desalination equipment. It adopts the compound formula of organic phosphonate and sulfonate copolymer, and realizes three core scale inhibition mechanisms of metal ion chelation, crystal lattice distortion and particle dispersion at the same time. It can comprehensively inhibit the precipitation and scaling of calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate and silica, covering almost all common scaling substances in reverse osmosis influent water. The formula is mild and friendly to membrane materials; it can be safely used for TFC polyamide composite membranes and CA cellulose acetate nanofiltration membranes, and will not cause irreversible surface pollution and damage to the membrane layer. The applicable pH range of KR-0100 is 5 to 10, which can adapt to raw water with high hardness and low hardness. ...

  CAS 130668-24-5 – PAPEMP is an advanced macromolecular organic phosphonic acid with molecular weight approximately 600, specifically developed for challenging water treatment conditions. The compound exhibits exceptional calcium tolerance at high concentration multiples, providing superior scale inhibition for calcium carbonate, calcium sulfate, and calcium phosphate. CAS 130668-24-5 demonstrates outstanding dispersing performance for iron oxides, iron hydroxides, and zinc hydroxides, making it particularly effective in high-iron and high-turbidity systems. The compound chelates effectively with copper, calcium, and magnesium ions forming soluble complexes, supporting applications in cooling water systems, household detergents, thermal power plants, and oilfield operations. The product shows excellent synergistic effects with other water treatment chemicals including HPAA and ATMP, especially under conditions of high hardness, high turbidity, high pH, and high co...

  High-temperature water systems, such as boilers and certain closed-loop cooling applications, impose extreme stress on water treatment chemicals. Elevated temperatures accelerate chemical breakdown and can significantly reduce the efficacy of standard scale and corrosion inhibitors. Shandong Kairui Chemical has developed a range of products specifically engineered to maintain their performance under these challenging thermal conditions 。 Phosphonates like  1-Hydroxy Ethylidene-1,1-Diphosphonic Acid  are known for their excellent thermal stability, making them a preferred choice for high-temperature applications. This stability ensures that the active scale-inhibiting molecules remain intact and functional, providing long-term protection against calcium carbonate and sulfate deposits. Furthermore, Kairui’s proprietary polycarboxylic acid polymers and specialized copolymers are designed to withstand high temperatures without losing their dispersant properties...

  Managing an industrial water treatment program involves coordinating a multitude of chemicals for scale, corrosion, biofouling, and cleaning. Sourcing these from multiple suppliers can lead to logistical complexity, compatibility issues, and higher costs. Shandong Kairui Chemical simplifies this process by serving as a comprehensive, one-stop shop for virtually all water treatment chemical needs, offering a portfolio as extensive as it is effective 。 From foundational phosphonates like  1-Hydroxy Ethylidene-1,1-Diphosphonic Acid , ATMP, and PBTCA to a wide range of polymer dispersants, biocides, and corrosion inhibitors, Kairui’s product list covers all the essentials of a modern treatment program . Furthermore, the company offers specialized categories like reverse osmosis chemicals, environmentally friendly biodegradable agents, and a comprehensive line of cleaning agents for system maintenance and restoration . This breadth ensures that clients can procure a...

  While calcium carbonate scaling is a common nuisance, the formation of barium sulfate (barite) and strontium sulfate (celestite) scales presents a near-catastrophic risk in many industrial processes, especially in oilfield water handling and desalination. These scales are notoriously difficult to remove due to their extreme hardness and low solubility in acidic and chelating solutions. Therefore, the most effective strategy is prevention, and this is where Shandong Kairui Chemical’s advanced phosphonates are indispensable 。 Standard inhibitors often prove ineffective against these tenacious deposits, but Kairui’s product portfolio includes solutions designed for this challenge.  Diethylene Triamine Penta (Methylene Phosphonic Acid)   (Diethylene Triamine Penta (Methylene Phosphonic Acid)) is a highly effective chelating agent that can hold Ba²⁺ and Sr²⁺ ions in a soluble complex, preventing them from precipitating as scale. Another highly specialized ...

In the world of industrial water treatment, the choice of a chemical supplier can be as critical as the chemicals themselves. Shandong Kairui Chemical Co., Ltd., a company established in 2015 with registered capital of 128 million RMB, is a testament to the value of deep technical expertise and a modern manufacturing base . Despite its recent founding as a company, Kairui' s team possesses an accumulated 20 years of experience in R&D, production, and supply chain management for water treatment chemicals 。 This wealth of experience is embedded in their entire operation, from their modern, intelligent, and automated production facility in Zaozhuang’s Xuecheng Chemical Industrial Park to their rigorous quality control processes. They are not just a manufacturer of chemicals; they are a solutions provider. Their annual production capacity of 280,000 tons for organic phosphonates, polymers, dispersants, and biocides ensures that they can meet the demands of large-scal...

While scale and corrosion inhibitors are the mainstays of water treatment, a modern program often requires a suite of auxiliary chemicals to enhance performance. Surfactants and specialty chemicals play a crucial, albeit often underappreciated, role. Shandong Kairui Chemical manufactures a broad range of these products, which are essential for cleaning, degreasing, dispersing, and improving the overall efficacy of a treatment program 。 Surfactants, such as Quaternary Ammonium Compounds (e.g., Dodecyl Dimethyl Benzyl Ammonium Chloride, CAS 139-07-1) and other non-ionic and cationic surfactants, are used for multiple purposes . They act as powerful wetting and penetrating agents, helping other chemicals like biocides reach their target. They are also essential for dispersing and removing oil, grease, and organic contaminants. Kairui’s  Deoiling Detergent  cleaning agent, for example, leverages the power of surfactants combined with chelating agents for effective de...

  The oil and gas industry relies heavily on water management, from enhanced oil recovery (EOR) injection to produced water treatment. The challenges are immense: high temperatures, high pressures, complex brine chemistries, and the presence of hydrocarbons. Scaling and corrosion in wellbores, pipelines, and processing equipment can lead to catastrophic failures and massive production losses. Shandong Kairui Chemical provides the high-performance, reliable chemicals needed to meet these demanding conditions 。 Kairui’s phosphonates and polymers are workhorses in oilfield applications. For example, the company’s  Diethylene Triamine Penta (Methylene Phosphonic Acid)   is a cornerstone chemical for preventing barium and strontium sulfate scale in injection systems, while HEDP is widely used for calcium carbonate and sulfate scale inhibition . Furthermore, for systems with high iron content, which can degrade conventional phosphonates, Kairui’s Polyhydric A...

  Over time, even the best-maintained water systems accumulate deposits. Scale, sludge, biofilms, and corrosion products will inevitably build up on heat transfer surfaces, reducing efficiency and threatening system integrity. When prevention is no longer enough, industrial-grade cleaning agents are required to restore performance. Shandong Kairui Chemical offers a comprehensive suite of cleaning agents designed for a variety of applications, from low-pressure boilers to large-scale circulating water systems 。 Kairuis cleaning products are sophisticated formulations. For example, KR-503 is a blend of organophosphines and polycarboxylic acids, offering high-efficiency scale and corrosion inhibition with excellent temperature tolerance for low-pressure boilers. For more intensive cleaning, products like KR-260 and  Alkali Detergent for RO Membrane  are available: KR-260 is an acidic formulation for removing metal hydroxides and carbonate scales, while KR-261 ...

  Many industrial water systems, especially open recirculating cooling towers, face the simultaneous challenge of scaling and corrosion. Treating these two issues with separate, single-purpose chemicals can be complex and costly. Recognizing this, Shandong Kairui Chemical has developed a range of multifunctional agents that deliver both scale inhibition and corrosion protection in a single, synergistic product, simplifying treatment and improving overall efficacy 。 2-Phosphonobutane -1,2,4-Tricarboxylic Acid  (2-Phosphonobutane-1,2,4-Tricarboxylic Acid) is a classic example of this synergy. Its molecular structure incorporates both phosphonic and carboxylic acid groups, allowing it to effectively inhibit calcium carbonate scale while also providing excellent corrosion inhibition for carbon steel. This makes it a highly efficient and cost-effective choice for many cooling water applications. Another advanced product is HPAA (2-Hydroxyphosphonoacetic Acid), which is...