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Phosphoric Acid Manufacturer and Supplier

CAS No.: 7664-38-2 | EC Number.: 231-633-2 | Molecular formula.: H3PO4, H3O4P

Phosphoric Acid

Phosphoric Acid Manufacturers, Phosphoric Acid Suppliers, Phosphoric Acid Formula, Phosphoric Acid MSDS, Phosphoric Acid SDS, Phosphoric Acid Exporter in Mumbai, India.

Vinipul Chemicals Pvt. Ltd., a renowned manufacturer, supplier, and exporter based in India, specializes in producing high-purity Phosphoric Acid (CAS No. 7664-38-2). As a leading Phosphoric Acid manufacturer, our company is widely recognized for its commitment to delivering top-quality specialty chemicals with exceptional accuracy in composition and an absence of impurities.

To ensure the highest standards of purity, we utilize superior-quality chemicals and employ state-of-the-art manufacturing equipment, adhering to international industry guidelines. As a reliable Phosphoric Acid supplier, we take pride in offering   that exhibits superior quality, precisely meeting the required composition specifications, and boasting an extended shelf life.

By choosing Vinipul Chemicals Pvt. Ltd., you can trust that you are obtaining Phosphoric Acid of the finest grade, manufactured with meticulous attention to detail and quality control. As a prominent Phosphoric Acid manufacturer in India, We prioritize the satisfaction of our customers by consistently delivering products that meet their stringent requirements.

What is Phosphoric Acid?

Phosphoric acid, also known as phosphoric(V) acid or orthophosphoric acid, is an inorganic acid that contains phosphorus. It is a colourless or transparent crystalline solid with no odor. Pure phosphoric acid melts at 42.35 °C and has a density of 1.834 g/cm³. The term “ortho-” is used to differentiate this acid from other phosphoric acids known as polyphosphoric acids. Orthophosphoric acid is generally non-toxic and exists as a solid at room temperature and pressure. It is commonly referred to as phosphoric acid in general. Phosphoric acid is a weak acid and a mineral compound with the chemical formula H3PO4.

One of the notable properties of phosphoric acid is its ability to sequester or bind to various divalent cations, including Fe++, Cu++, Ca++, and Mg++. It is widely used in the manufacturing of fertilizers, detergents, and in food processing industries. In dentistry and orthodontics, phosphoric acid is used as an etching solution. Ortho phosphoric acid is applied to the surfaces of teeth to clean and roughen them before the placement of dental appliances or fillings. It also serves as a component in bones and teeth and plays a role in many metabolic processes.

Phosphoric Acid Details

This table provides information about Phosphoric Acid, a chemical compound with the CAS No. 7664-38-2 and EC Number. 231-633-2. The table also lists various Phosphoric Acid common name and synonyms. The table contains Phosphoric Acid structure, Phosphoric Acid solubility and molecular formula. Phosphoric Acid ph. value is also mentioned in the table. Phosphoric Acid is commonly used in various industries in different applications.


Chemical namePhosphoric Acid
CAS No7664-38-2
EC Number231-633-2
Commercial name / SynonymsPhosphoric acid, Orthophosphoric Acid, o-Phosphoric acid, Sonac, POLYPHOSPHORIC ACID, Phosphorsaeure, Evits, Wc-reiniger
Molecular formula



Chemical Structure
Melting Point42.35°C
IUPAC Namephosphoric acid
Physical Form Orthorhombic Crystals / clear syrupy liquid
Physical Appearance Colourless liquid or transparent crystalline solid.
Solubility in water

392.2 g/(100 g) (−16.3 °C)

369.4 g/(100 mL) (0.5 °C)

446 g/(100 mL) (15 °C)[5]

548 g/(100 mL) (20 °C)

SolubilitySoluble in ethanol
pH1.5 (0.1 N aqueous solution)
Packaging Details 25 kg / 50 kg / HDPE packaging bags / Drum/ As per Client’s requirements

Computed Properties

The table provides various properties of a chemical compound, including molar mass of Phosphoric acid, hydrogen bond acceptor counts, an exact mass and mono-isotopic mass, heavy atom counts, and a topological polar surface area. These properties are useful in identifying and characterizing the compound for various purposes in industries such as pharmaceuticals and chemicals.

Property NameProperty Value
Molecular Weight97.995 g/mol
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count4
Exact Mass97.97689557 g/mol
Monoisotopic Mass97.97689557 g/mol
Heavy Atom Count5
Topological Polar Surface Area77.8Ų
Covalently-Bonded Unit Count1
Compound Is CanonicalizedYes

Related Compounds with Annotation

The table provides information on various chemical compounds along with their corresponding structure images, names, compound CIDs (Compound Identifiers), neighbor types, and the count of annotation types associated with each compound. The compounds listed include phosphonic acid dianion, phosphoric acid, carbonic acid, bicarbonate ion, dihydrogen phosphate, diphosphate, phosphate ion, thiosulfate ion, and sulfite ion. The compounds are represented in both 2D and 3D structures, and the annotation type count varies for each compound, ranging from 2 to 16.

Structure Image

Structure Name

Compound CID

Neighbour Type

Annotation Types Count

Take from PubChem

Phosphonic acid dianion





Phosphonsaeure, phosphorige Saeure, trihydroxidophosphorus, Phosphorous acid, ortho, O-PHOSPHOROUS ACID





463-79-6, carbonic acid, H2CO3, Koehlensaeure, hydroxy ketone





71-52-3, Bicarbonate (HCO3-), Bicarbonate ion, Bicarbonate ion (HCO31-), Bicarbonate Ions





DIHYDROGEN PHOSPHATE, dihydrogenphosphate, DIHYDROGENPHOSPHATE ION, 14066-20-7, dihydrogentetraoxophosphate(V)





Phosphoric acid, 7664-38-2, ORTHOPHOSPHORIC ACID, o-Phosphoric acid, Wc-reiniger





Diphosphate, trihydrogen, CHEBI:33017, diphosphate(1-), 14867-04-0, diphosphate(1-) anion





phosphate, orthophosphate, Phosphate ion, 14265-44-2, O-Phosphate





thiosulfate, Thiosulphate, THIOSULFATE ION, Thiosulfate (S2O32-), Thiosulfate ion(2-)





sulfite, Sulfite ion, 14265-45-3, Sulphite, Sulfite ions




Phosphoric Acid Price

If you are looking to purchase Phosphoric Acid, it’s important to know the current Phosphoric acid price in India. Phosphoric Acid price per kg can vary depending on the various factors. Phosphoric acid suppliers in India offers the best price in the market listed below: –

Product RangePrice
Phosphoric Acid 85% Food GradeRs 72/Kg
Phosphoric Acid Food GradeRs 72/Kg
Phosphoric Acid Technical GradeRs 120/Kg
Phosphoric Acid VietnamRs 150/Kg
Phosphoric Acid TaiwanRs 110/Kg
Phosphoric Acid KoreaRs 35/Kg

Prices shown above are provisional prices and may change due to different market conditions for latest prices

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Types of Phosphoric Acid

Phosphoric Acid 85% Food Grade

It refers to phosphoric acid that meets the specific purity and quality standards required for use in the food industry. It is commonly used as an additive in food and beverage products, such as soft drinks, jams, and processed meats. This grade of phosphoric acid ensures it is safe for consumption and complies with relevant food regulations.

Phosphoric Acid Food Grade

It generally denotes phosphoric acid that is suitable for use in the food industry. Phosphoric Acid Food Grade is used as an acidulant, flavouring agent, and pH regulator in various food and beverage applications. This grade of phosphoric acid adheres to the necessary safety and quality requirements to ensure its suitability for food-related purposes.

Phosphoric Acid Technical Grade

It refers to phosphoric acid that is primarily intended for industrial or technical applications rather than food use. Phosphoric Acid Tech Grade has a lower purity level compared to food-grade phosphoric acid and can be employed in various industrial processes, including manufacturing detergents, fertilizers, metal cleaning, and water treatment.

Phosphoric Acid Vietnam

It simply indicates that the phosphoric acid mentioned is sourced or produced in Vietnam. It does not specify any particular grade or quality of the phosphoric acid

Phosphoric Acid Taiwan

It signifies that the phosphoric acid is sourced or manufactured in Taiwan. Similar to the previous case, it does not provide specific details about the grade or quality of the phosphoric

Phosphoric Acid Korea

It signifies that the phosphoric acid is sourced or produced in Korea. Again, it does not indicate any specific grade or quality of the phosphoric acid but identifies the country of origin.

How to make Phosphoric Acid solution?

Phosphoric acid can be manufactured through two main processes: The wet process and the dry process.

  1. Wet Process: In the wet process, phosphate-containing minerals such as calcium hydroxyapatite and fluorapatite are treated with sulfuric acid. The reaction results in the production of phosphoric acid, along with calcium sulfate (gypsum) as a by-product. The chemical equations for the reactions are as follows:
    Ca5(PO4)3OH + 5 H2SO4 → 3 H3PO4 + 5 CaSO4 + H2O Ca5(PO4)3F + 5 H2SO4 → 3 H3PO4 + 5 CaSO4 + HF The resulting phosphoric acid solution typically contains around 23-33% P2O5 (32-46% H3PO4).

    It can be further concentrated to produce commercial- or merchant-grade phosphoric acid, which typically contains about 54-62% P2O5 (75-85% H3PO4). If water is further removed, it yields superphosphoric acid with a P2O5 concentration above 70% (equivalent to nearly 100% H3PO4). The phosphoric acid produced in both wet processes can undergo purification steps to remove potentially toxic impurities such as compounds of arsenic and other contaminants.
  2. Dry Process: In the dry process, phosphate ore is first reduced with coke in an electric arc furnace, resulting in the production of elemental phosphorus. Silica is added during this process, which leads to the formation of calcium silicate slag. The elemental phosphorus is then distilled out of the furnace and burned with air to generate high-purity phosphorus pentoxide (P2O5). This phosphorus pentoxide is dissolved in water to produce phosphoric acid.

These manufacturing processes allow for the production of phosphoric acid with varying concentrations and purity levels to meet different industrial and commercial requirement.

Why is h3po4 called phosphoric acid?

Phosphoric Acid is called “phosphoric acid” because it is an acid derived from the element phosphorus. The prefix “phospho-” indicates its connection to phosphorus, and the suffix “-ic” is commonly used to name acids. The name “phosphoric acid” accurately describes its chemical composition and distinguishes it from other types of phosphoric acids, such as polyphosphoric acids.

Is H3PO4 is a strong acid?

Yes, H3PO4 (phosphoric acid) is classified as a weak acid. When it is dissolved in an aqueous solution, it undergoes partial ionization, releasing hydrogen ions (H+). The ionization process occurs in stages, with each hydrogen atom being released sequentially. This partial ionization characteristic is what distinguishes it as a weak acid rather than a strong acid.

Industrial Applications

Phosphoric acid finds extensive use in various industrial applications due to its versatile properties. Some of the common industrial applications of phosphoric acid are:


Fertilizer Production

Phosphoric acid is a key component in the manufacturing of fertilizers, especially phosphate fertilizers. It is used to produce superphosphate fertilizers, which provide essential phosphorus to plants for their growth and development.

Water Treatment

Phosphoric acid is utilized in water treatment processes to adjust the pH levels and control alkalinity. It helps prevent scaling and corrosion in water systems and improves the efficiency of water treatment operations.

Metal Cleaning and Etching

Phosphoric acid is employed in metal cleaning and etching applications. It removes rust, scale, and mineral deposits from metal surfaces, making it an effective agent for preparing surfaces before painting, coating, or welding.

Industrial Cleaning and Descaling

Phosphoric acid is utilized as a cleaning and descaling agent in industrial processes. It helps remove mineral deposits, scales, and residues from equipment and pipelines, ensuring optimal performance and prolonging the lifespan of industrial systems.


Chemical Intermediates

Phosphoric acid is involved in the production of various chemical intermediates. It serves as a precursor in the synthesis of phosphates, phosphate esters, and other phosphorus-containing compounds used in the manufacturing of detergents, flame retardants, pharmaceuticals, and plastics.

Acid Catalyst

Phosphoric acid acts as a catalyst in certain chemical reactions. It facilitates reactions such as esterification, polymerization, and dehydration processes, playing a crucial role in the production of various chemicals and materials.

These are just a few examples of the wide range of industrial applications of phosphoric acid. Its versatility and chemical properties make it a valuable compound in several industries, including agriculture, water treatment, metal processing, and chemical manufacturing.

What is Phosphoric Acid used for?

Phosphoric Acid finds various applications across different industries. Here is a list of phosphoric acid uses:

  1. Food Additives: Phosphoric acid in food is used as an additive in food and beverage products as an acidulant and flavouring agent.
  2. Analytical Reagent: Phosphoric Acid serves as a reagent in analytical chemistry for various laboratory analyses.
  3. Soap and Detergents: It is utilized in the manufacturing of soaps and detergents.
  4. Coagulating Rubber Latex: Phosphoric Acid is used as a coagulating agent in the production of rubber latex.
  5. Polymer Gasoline Catalyst: It acts as a catalyst in the production of polymers used in gasoline.
  6. Etchant in Semiconductor Manufacture: Phosphoric Acid is utilized as an etchant in the semiconductor industry during the manufacturing process.
  7. Acidulant and Flavour in Soft Drinks and Prepared Foods: It provides acidity and flavour enhancement in soft drinks and prepared food products.
  8. Aluminium Brightening/Anodizing Agent: Phosphoric Acid is employed in aluminum surface treatment for brightening and anodizing processes.
  9. Microbial Fermentation Nutrient: It serves as a nutrient in microbial fermentation processes.
  10. Refractories: Phosphoric Acid is used in the production of refractory materials, such as bricks and coatings.
  11. Pharmaceutical Aid: It functions as a solvent and aid in the formulation of pharmaceutical products.
  12. Dental Cements: Phosphoric Acid is used in the production of dental cements for dental treatments.
  13. Rustproofing Agent: It is utilized as a rust proofing agent for metal surfaces before painting.
  14. Acid Catalyst: Phosphoric Acid acts as a catalyst in various chemical reactions, including the production of ethylene and purification of hydrogen peroxide.
  15. Anti-Corrosion Treatment: It is used as a treatment reagent for anti-corrosion purposes in metals like aluminum, steel, magnesium, and zinc.
  16. Catalyst for Alcohol Production: Phosphoric Acid acts as a catalyst in the hydration of alkenes to produce alcohols, primarily ethanol.

These applications highlight the diverse uses of Phosphoric Acid in various industries and processes.

Where to Buy Phosphoric Acid?

If you are looking to purchase Phosphoric Acid, you can consider contacting Vinipul Chemicals Pvt. Ltd. A reputable company, based in India, specializes in the manufacturing, supplying, and exporting of high-purity Phosphoric Acid. As prominent phosphoric acid manufacturers in India, we are known for our commitment to producing products with accurate composition and minimal impurities, meeting international industry standards. To buy Phosphoric Acid from Vinipul Chemicals, a leading Phosphoric Acid suppliers, you can visit our official website or contact the sales team directly. We will provide you with detailed information about product availability, pricing, and shipping options. Additionally, we also assist you with any specific requirements or customization needs related to Phosphoric Acid.


Phosphoric Acid is a weak acid.


Phosphoric Acid is available in different grades such as food grade, technical grade, and industrial grade. The grade determines its suitability for specific applications.

Food-grade Phosphoric Acid is considered safe for consumption when used within the specified limits and in accordance with relevant food regulations.

Phosphoric Acid is used as an acidulant, flavour enhancer, and pH regulator in food and beverage products such as soft drinks, jams, and processed meats.

Yes, Phosphoric Acid is commonly used as a cleaning and descaling agent in industrial processes to remove mineral deposits, scales, and residues from equipment and pipelines.

Yes, Phosphoric Acid is used in water treatment processes to adjust pH levels, control alkalinity, and prevent scaling and corrosion in water systems.

Yes, Phosphoric Acid is a key component in the production of phosphate fertilizers, which provide essential phosphorus for plant growth and development.

Phosphoric Acid should be handled with care, using appropriate protective equipment, as it is a corrosive substance. Safety guidelines and procedures should be followed.

Is Phosphoric Acid available in different concentrations?

Yes, Phosphoric Acid is available in various concentrations depending on the intended use. Common concentrations include 85%, 75%, and lower strengths.

Phosphoric Acid is used as a pharmaceutical aid and solvent in the formulation of certain medications.

Phosphoric Acid should be handled and disposed of in accordance with environmental regulations to prevent contamination and minimize its impact on the environment.

Yes, Phosphoric Acid is used for metal cleaning, rust removal, and as an etchant in processes such as metal surface preparation before painting or coating.

The shelf life of Phosphoric Acid depends on various factors such as storage conditions and packaging. It is best to consult the supplier or manufacturer for specific information.

Phosphoric Acid is available from chemical suppliers, distributors, and online marketplaces. Vinipul Chemicals Pvt. Ltd. is a renowned manufacturer, supplier, and exporter based in India, specializing in producing high-purity Phosphoric Acid.

Market Area

We supply and exports Phosphoric Acid in all parts of the world such as

Phosphoric Acid in Africa Countries
South Africa , Nigeria, Kenya, Ghana, Ethiopia, Tanzania, Algeria, Angola, Benin, Botswana, Burkina Faso, Burundi, Cabo Verde, Cameroon, Central African Republic (CAR), Chad, Comoros, Democratic Republic of the Congo, Côte d’Ivoire, Djibouti, Egypt, Equatorial Guinea, Eritrea, Gabon, Gambia, Guinea, Guinea-Bissau, Lesotho, Liberia, Libya, Madagascar, Malawi, Mali, Mauritania, Mauritius, Morocco, Mozambique, Namibia, Nigeria, Rwanda, Sao Tome and Principe, Senegal, Seychelles, Sierra Leone, Somalia, South Sudan, Sudan, Swaziland, Togo, Tunisia, Uganda, Zambia, Zimbabwe.

Phosphoric Acid in Gulf Countries
Oman, Qatar, Kuwait, Saudi Arabia, Dubai, Bahrain, Iran, United Arab Emirates

Phosphoric Acid in Asia Countries
Afghanistan, Armenia, Azerbaijan, Bahrain, Bangladesh, Bhutan, Brunei, Cambodia, China, Cyprus, Georgia, India, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Laos, Lebanon, Malaysia, Maldives, Mongolia, Myanmar (Burma), Nepal, North Korea, Oman, Pakistan, Palestine, Philippines, Qatar, Russia, Saudi Arabia, Singapore, South Korea, Sri Lanka, Syria, Taiwan, Tajikistan, Thailand, Timor-Leste, Turkey, Turkmenistan, United Arab Emirates (UAE), Uzbekistan, Vietnam, Yemen

We supply Phosphoric Acid in all parts of India.
Andhra Pradesh, Arunachal Pradesh, Assam, Bihar, Chhattisgarh, Goa, Gujarat, Haryana, Himachal Pradesh, Jammu & Kashmir, Jharkhand, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Manipur, Meghalaya, Mizoram, Nagaland, Odisha, Punjab, Rajasthan, Sikkim, Tamil Nadu, Telangana, Tripura, Uttarakhand, Uttar Pradesh and West Bengal.

Note: – Please be advised that the information contained in this document is intended for illustrative purposes only. Due to variations in product grade, applications, industries, or uses, the accuracy of the information provided cannot be guaranteed. © Copyright 2023 © Vinipul Chemicals All Rights Reserved (Terms of Use). Reproduction of any material from this site is strictly prohibited without permission. Vinipul Chemicals products are exclusively sold through the company’s website. For precise product specifications and requirements, as well as advice on which products are best suited for your specific application needs, please contact us at [email protected] Use Terms | Privacy.

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