Hypophosphorous acid manufacturer: professional quality and multiple advantages
Publication Time:
2025-02-25
In the chemical industry, hypophosphorous acid, as a chemical with unique properties and wide applications, has attracted much attention regarding the strength of its manufacturers and product quality. With the growing demand for hypophosphorous acid from various industries, high-quality manufacturers stand out in the market, providing strong support for numerous downstream industries.
In the chemical industry, hypophosphorous acid, as a chemical with unique properties and wide applications, has its manufacturers' strength and product quality receiving considerable attention. With the continuous growth of demand for hypophosphorous acid in various industries, high-quality manufacturers stand out in the market, providing strong support for numerous downstream industries.
Properties and Applications of Hypophosphorous Acid
Hypophosphorous acid (H₃PO₂) is an inorganic dibasic acid with strong acidity. It appears as a colorless oily liquid or deliquescent crystal, and gradually oxidizes in air at room temperature. Hypophosphorous acid has many special chemical properties, such as decomposing into highly toxic phosphine gas when heated, immediately burning when encountering a foaming agent, and reacting strongly with oxidants. It is also a strong reducing agent. These properties determine the irreplaceable applications of hypophosphorous acid in many fields.
In the electroplating industry, hypophosphorous acid is often used in electroplating baths to effectively improve the quality and performance of coatings; in the pharmaceutical industry, it is an important raw material involved in the synthesis of various drugs; in the chemical synthesis field, hypophosphorous acid can be used as a strong reducing agent to produce hypophosphites such as sodium hypophosphite and calcium hypophosphite, and can also be used in the reduction of diazonium salts and the reduction-elimination of halogens on the aromatic rings of polynitro compounds. In addition, it also plays an important role in resin decolorization and other industries.
Preparation Process of Hypophosphorous Acid
There are various methods for industrial preparation of hypophosphorous acid. Common methods include ion exchange method, yellow phosphorus synthesis and decomposition method, electrodialysis method, and high-temperature phosphorus reaction method.
The ion exchange method uses sodium hypophosphite as a raw material and uses a strongly acidic cation exchange resin to remove sodium to obtain a dilute hypophosphorous acid solution. The specific process is divided into two steps: first, acid is produced by exchange, and the sodium hypophosphite solution is passed through a strongly acidic cation exchange resin (R-SO₃H) containing a sulfonic acid group (-SO₃H), and the reaction R-SO₃H+NaH₂PO₂=H₃PO₂+R-SO₃Na produces a hypophosphorous acid solution; then, the resin is regenerated, and hydrochloric acid is passed through the resin, and the reaction formula is R-SO₃Na+HCl=R-SO₃H+NaCl. This method requires a large amount of resin, and the regeneration and cleaning steps of the resin are cumbersome. It is more suitable for small-batch production, but the purity of the product obtained after concentrating the dilute hypophosphorous acid solution is high.
The yellow phosphorus synthesis and decomposition method is to synthesize barium hypophosphite (or calcium hypophosphite) by heating a concentrated barium hydroxide (or lime) solution with yellow phosphorus, and then decomposing it with sulfuric acid, filtering, and concentrating under reduced pressure to obtain hypophosphorous acid. The relevant reaction formula is: P₄+2Ba(OH)₂+4H₂O=2Ba(H₂PO₂)₂+2H₂，Ba(H₂PO₂)₂+H₂SO₄=BaSO₄↓+2H₃PO₂.
The principle of electrodialysis is based on a series of reactions that occur in the anode chamber and cathode chamber after a direct current is passed through the electrodialysis cell. Anode chamber: H₂O=H⁺+OH⁻，4OH⁻=O₂↑+2H₂O+4e⁻，H⁺+H₂PO₂⁻=H₃PO₂；Cathode chamber: H₂O=H⁺+OH⁻，2H⁺+2e⁻=H₂↑，Na⁺+OH⁻=NaOH. The anode chamber and cathode chamber are separated by an anion membrane and a cation membrane. After direct current is passed, positive and negative ions move to the cathode and anode respectively. The anion membrane only allows anions to pass through, and the cation membrane only allows cations to pass through. Finally, hypophosphorous acid is generated in the anode chamber. This method is simple, suitable for large-scale production, and produces no wastewater or waste residue, but the purification of the product is difficult.
The high-temperature phosphorus reaction method is that phosphorus directly reacts with oxygen at high temperature to generate phosphorous anhydride or hypophosphorous anhydride, which is hydrolyzed to obtain the corresponding acid, and then separated to obtain hypophosphorous acid and phosphorous acid. This method has high production efficiency and total phosphorus yield, but requires a more complex separation process, so it is rarely used.
Hubei Yiruicheng New Materials Technology Co., Ltd. has considerable strength in the field of hypophosphorous acid production. The company integrates production, research and development, and sales, and is located in Yuekou Industrial Park, Tianmen City, Hubei Province, adjacent to Wuhan, with convenient transportation and logistics. It covers an area of 60 mu and has strong production capacity, with an annual output of 3,000 tons of hypophosphorous acid.
The company's production equipment is advanced, using multiple patented technologies, and has a high degree of automation. This ensures stable product quality and reduces operating costs, giving it strong competitiveness in the market. In terms of product quality control, all products have obtained ISO quality certification, and the product quality fully complies with various national standards and must pass strict inspections by third-party testing departments before leaving the factory. In addition, the company's product categories are diverse and comprehensive, supporting small-batch and multiple-batch purchases, with a fast delivery cycle. It can provide customized solutions for customers within 3 days. If the customer is in the province, a professional team will provide on-site service within 3-5 days. When encountering technical problems, the daily consultant team will listen carefully and solve them, providing customers with complete technical support, always putting customers' interests as their own, and taking fully understanding and meeting customer needs as the primary goal.
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Address: North of Road No. 7, Yuekou Industrial Park, Yuekou Town, Tianmen City, Hubei Province
WhatsApp: 19517183413
Contact Person: Manager Jia (Hypophosphite Series)
Mobile Phone:8615972147756(WeChat)
8619371705622
Email:zyzl1508@163.com
Contact Person: Manager Zou (Dimethyldithiocarbamate)
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