9 Phosphorous Acid Manufacturers in 2024
This section provides an overview for phosphorous acid as well as their applications and principles. Also, please take a look at the list of 9 phosphorous acid manufacturers and their company rankings. Here are the top-ranked phosphorous acid companies as of November, 2024: 1.Triown Chemie, 2.Shandong YingLang Chemical Co.,Ltd, 3.NEW ALLIANCE FINE CHEM PVT. LTD..
Table of Contents
What Is Phosphorous Acid?
Figure 1. Synthesis of Phosphorous Acid
Phosphorous acid is an inorganic phosphorus oxoacid, chemically represented by H3PO3. It belongs to the family of phosphorus oxoacids, including phosphoric acid and hypophosphorous acid. Phosphorous acid can be synthesized through the hydrolysis of acid anhydrides, typically by reacting phosphorus trichloride with water or steam. Notably, it has gained attention for its application in fertilizers. Pure phosphorous acid can be extracted from potassium phosphorous acid by treating it with hydrochloric acid, followed by concentration with alcohol or precipitation.
Uses of Phosphorous Acid
Phosphorous acid serves multiple roles, including as a catalyst and reducing agent in organic compound synthesis and as a stabilizer in vinyl chloride production. It is also a precursor for phosphite fertilizers. Despite phosphoric acid being a common component in phosphate fertilizers, phosphorous acid has emerged as an alternative due to its lower molecular weight, better solubility, and superior crop absorption and soil adsorption characteristics. This acid is found in both granular and liquid fertilizers, often combined with potassium, enhancing crop yield and quality when used correctly.
Properties of Phosphorous Acid
At room temperature and pressure, phosphorous acid appears as stable white crystals but is deliquescent. In aqueous solution, it primarily exists as HP(O)(OH)2, demonstrating divalent acidity with a pH around 1. Its pKa1 is 1.5 and pKa2 is 6.79. Phosphorous acid is noted for its strong reducing properties, capable of liberating metals from solutions like silver nitrate, gold (III) chloride, and copper sulfate, with a standard redox potential of E° = -0.276 V in acidic solutions.
Structure of Phosphorous Acid
Phosphorous acid exhibits tautomerism, with hydrogen atoms shifting between phosphorus and oxygen. The predominant form is HP(O)(OH)2, also known as phosphonic acid, over its trihydroxy counterpart, P(OH)3. In solid form, phosphorous acid adopts a tetrahedral structure, with specific bond lengths for P-H, P-O, and P-O(H) bonds.
Other Information on Phosphorous Acid
1. Isomers of Phosphorous Acid
In solution, phosphorous acid exists in equilibrium with its tautomer, phosphonic acid, though phosphorous acid is the more prevalent form. In the realm of organic chemistry, phosphonic acids refer to compounds with the formula R-P(=O)(OH)2, including substances like foscarnet, an antiviral drug. The diesters of P-alkylphosphonic acid are key substrates in the Horner-Wadsworth-Emmons reaction, pivotal for synthesizing alkenes.
2. Phosphorous Acid Related Compounds
Phosphorous acid is part of the broader phosphorus oxoacid family. Phosphorus oxoacids with an oxidation state of +5 include phosphoric acid, diphosphoric acid, triphosphoric acid, and meta-triphosphoric acid, among others. Phosphinic acid, with a phosphorus oxidation state of +1, is another related compound, expressed as H3PO2.
List of 9 Phosphorous Acid Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- China
- India
- Japan
- Netherlands
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Nouryon
Phosphorous acid
Manufacturer Overview
Nouryon has a history dating back to 1646 Sweden but was officially formed in 2018 after gaining independence from AkzoNobel. The company is a manufacturer of everyday consumer products including personal care and cleaning goods, as well as products for the agricultural, pharmaceutical, and building industries. The company’s brands include Dissolvine, Witbreak, Butanox, and Ferrazone. These brands manufacture products across five product segments: Bleaching and Oxidizing Chemicals and Technologies, Specialty Polymers, Surfactants and Chelating Agents, Polymer Production and Processing Chemicals, and Specialty Chemicals and Intermediates.
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Ennore India Chemicals
Hypo Phosphorous acid
Manufacturer Overview
Ennore India Chemicals, established in 1995, and based in Tamil Nadu, India, is a manufacturer and supplier of industrial chemicals and cleaning solutions. The company serves various industries, including wastewater treatment, marine, power generation, and oil and gas. Ennore India Chemicals also provides fuel additives, corrosion inhibitors, descaling chemicals, chemicals for boiler water treatment, as well as chemicals for cooling towers. Their ISO 9001:2015 certification guarantees quality goods and environmentally friendly practices.
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NEW ALLIANCE FINE CHEM PVT. LTD.
phosphorus acid
Manufacturer Overview
NEW ALLIANCE FINE CHEM PVT. LTD., established in 1986 with headquarters in India, is a manufacturer and exporter of a wide range of specialty chemicals to diversified markets worldwide. The company's products include chelating agents, amino acids, laboratory chemicals, food chemicals, and pharmaceutical intermediates. Some examples include EDTA derivatives, DTPA derivatives, bovine collagen peptide, soya peptone, and beef extract. NEW ALLIANCE FINE CHEM PVT. LTD. serves clients in the healthcare, veterinary, agriculture, and food industries, with big-name clients that include Johnson & Johnson, MSN Laboratories, Hindustan Unilever, and Procter & Gamble.
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Triown Chemie
phosphorus acid crystal
Manufacturer Overview
Triown Chemie, established in 1996, is a chemical manufacturer, exporter, and trader based in Ahmedabad, India. The company offers a range of chemicals known for its purity, accurate pH-values, precise composition and extended shelf life. With an experienced professional team who ensure that their products meet international standards through rigorous testing procedures. They provide excellent products and customer service which allows them to expand their reach to regions including Europe, Asia, Latin America and China. Their transparent business practices, range of chemicals, advanced processing unit, robust R&D department and competitive pricing distinguish them from the competitors.
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MUBY CHEMICALS
Phosphorous acid
Manufacturer Overview
MUBY CHEMICALS, established in 1976, is a manufacturer and supplier of chemicals and excipients used in pharmaceuticals, cosmetics & personal care, agrochemical, and textile industries. Based in Ankleshwar, Gujarat, India, the company offers Shale gas hydraulic Fracturing Chemicals such as ammonium persulfate, diverting agents, inhibitors, ATMP phosphonate, and encapsulated gel breakers. Some food analytical reagent chemicals include benzyl alcohol, calcium oxide, boric acid, carbamide peroxide, and lithium carbonate. The company is GLP-approved, Kosher Certified, "REACH" Registered, and ISO-9001 Certified.
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Prasol Chemicals Limited.
PHOSPHOROUS ACID CRYSTALS
Manufacturer Overview
Prasol Chemicals Limited., founded in 1992 and headquartered in Mumbai, India, is a manufacturer of acetone & phosphorous based speciality chemicals. The company initially began manufacturing phosphorous-based chemicals and later diversified into acetone-based chemistry, creating an integrated value chain across its product line. The majority of its products consist of acetone and phosphorous derivatives, which find their end uses in pharmaceuticals, agrochemicals, and the home and personal care segments. The company has a government of India certified export House and a global distribution network across Asia, North America and the European Union.
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Johoku Chemical
Phosphites
Company Overview
Johoku Chemical, established in 1958 and headquartered in Tokyo, Japan, is a manufacturer and supplier of fine chemical products. The company offers over 150 products, including phosphites, acid phosphates, and benzotriazole compounds. Its products are generally used in various industries as a lubricating oil additive and corrosion inhibitor for several materials like copper, zinc, and as a raw material for medicinal intermediates. The company operates in compliance with ISO 9001 quality management guidelines.
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Shandong YingLang Chemical Co.,Ltd
High purity Phosphorous acid
Company Overview
Shandong YingLang Chemical Co.,Ltd was founded in 2006 and is a manufacturer and distributor of clinical analytical instruments, chemical reagents, and organic acid products based in Jinan, Shandong, China. The company sells various products such as fluoride, flame retardant, hydrazine, active metal compound, and chemical auxiliary. The company has obtained the certification of ISO 9001:2008. Various exhibitions have been participated by the company, including API China. The products are exported to Japan, South Korea, Europe, and America.
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Vizag Chemical International
Phosphorous acid
Company Overview
Vizag Chemical International was founded in Andhra Pradesh, India, in 2011. Vizag Chemical International sells chemical-based products for many sectors including automotive, agriculture, airline, deodorizers, construction chemicals, boat maintenance, degreasers, detergents, drain clean products, greases, personal hygiene, lab chemicals and equipment, fuel treatment, metal treatment, tank cleaners, swimming pool and spa chemicals, scale removers, sewage chemical treatment, as well as raw chemicals. Vizag Chemical International also provides a range of services including chemical inspection, logistics, chemical usage supervision, as well as tank cleaning.
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Phosphorous Acid Manufacturer Ranking
*Including some distributors, etc.Ranking as of November 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Triown Chemie |
22.2%
|
| 2 | Shandong YingLang Chemical Co.,Ltd |
13.9%
|
| 3 | NEW ALLIANCE FINE CHEM PVT. LTD. |
11.1%
|
| 4 | Ennore India Chemicals |
11.1%
|
| 5 | Vizag Chemical International |
11.1%
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| 6 | Johoku Chemical |
11.1%
|
| 7 | Nouryon |
8.3%
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| 8 | Prasol Chemicals Limited. |
5.6%
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| 9 | MUBY CHEMICALS |
5.6%
|
Derivation Method
The ranking is calculated based on the click share within the phosphorous acid page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
- Prasol Chemicals Limited.: 607
- Johoku Chemical: 106
- NEW ALLIANCE FINE CHEM PVT. LTD.: 100
Newly Established Company
- Shandong YingLang Chemical Co.,Ltd: 2006 (18 years ago)
- Triown Chemie: 1996 (28 years ago)
- Ennore India Chemicals: 1995 (29 years ago)
Company with a History
- Johoku Chemical: 1958 (66 years ago)
- MUBY CHEMICALS: 1976 (48 years ago)
- NEW ALLIANCE FINE CHEM PVT. LTD.: 1986 (38 years ago)
Global Distribution of Phosphorous Acid Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
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India
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4 | 57.1% |
Netherlands
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1 | 14.3% |
Japan
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1 | 14.3% |
China
|
1 | 14.3% |
