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Phosphomolybdic Acid
Phosphomolybdic acid is the heteropolymetalate with the formula H3[Mo12PO40]·12H2O. It is a yellow solid, although even slightly impure samples have a greenish coloration. It is also known as dodecamolybdophosphoric acid or PMA, is a yellow-green chemical compound that is freely soluble in water and polar organic solvents such as ethanol. It is used as a stain in histology and in organic synthesis.
Phosphomolybdic acid (PMA) is a yellow to greenish solid and an inorganic compound used across various fields for its oxidizing and analytical properties. It is a heteropoly acid composed of phosphoric acid and molybdic acid. PMA is most commonly found in hydrated form, as phosphomolybdic acid hydrate.
Chemway is one of the Phosphomolybdic acid (PMA), manufacturers, exporters, and suppliers in Fujairah, Sharjah, Abu Dhabi, Ajman, Ras Al Khaimah, Kuwait, Muscat, Dubai UAE.
- Chemical Industry:
- Catalyst in Organic Synthesis: PMA is used as a catalyst in various organic chemical reactions, including alcohol oxidation, hydrolysis, and polymerization processes.
- Oxidizing Agent: PMA’s strong oxidizing properties make it useful for the oxidation of hydrocarbons and alcohols in chemical manufacturing.
- Heteropoly Acid Chemistry: PMA is involved in heteropoly acid reactions, which are important in the production of specialty chemicals, including certain polymers and plastics.
- Textile and Leather Industry:
- Dyeing and Pigmentation: Phosphomolybdic acid is used as a mordant in textile dyeing and leather tanning, enhancing the fixation and fastness of dyes to fabrics and leathers.
- Color Development: In the production of pigments, PMA helps develop vibrant and stable colors, especially in blue and green hues.
- Environmental Applications:
- Water Treatment: PMA is utilized in wastewater treatment processes as a catalyst for breaking down organic pollutants, especially in the oxidative degradation of harmful compounds in industrial effluents.
- Air Purification: PMA is part of catalytic systems for air pollution control, helping reduce volatile organic compounds (VOCs) and other pollutants in emissions.
- Analytical Chemistry:
- Chemical Reagent: It is commonly used in qualitative and quantitative chemical analysis. PMA helps detect and quantify various organic compounds, including phenols, alkaloids, and certain amino acids.
- Precipitating Agent: PMA is often used to precipitate proteins, enzymes, and other biological molecules during purification processes in chemical labs.
- Pharmaceutical Industry:
- Drug Development: PMA is used in the pharmaceutical industry as a reagent to develop or test new drugs, particularly in synthesis processes that require strong oxidizers.
- Biochemical Staining: In biochemical and pharmaceutical research, PMA is applied as a staining agent for tissue samples, helping in the identification of cellular structures.
- Electronics Industry:
- Corrosion Inhibition: PMA is sometimes employed as an anti-corrosive agent in the protection of electronic components and materials.
- Conductive Polymers: PMA is involved in the preparation of conductive polymers that are used in various electronic devices.
- Mining and Metallurgy:
- Mineral Processing: Phosphomolybdic acid is used to assist in the extraction and refining of certain metals, particularly in processes involving molybdenum compounds.
- Art and Conservation:
- Pigment and Paint Development: PMA serves as a chemical precursor in the production of pigments used in painting and coatings, offering rich hues and durability.
- Preservation of Artifacts: It is occasionally used in the preservation of art pieces due to its staining properties and ability to enhance the visibility of delicate details in aging artifacts.
Appearance | Yellow-green crystalline solid |
Odor | Faint and similar to ethanol |
pH | Acidic |
Molecular Weight | 1825.25 g/mol |
Boiling Point | 64.7 °C |
Melting Point | 79-90 °C |
Vapor Pressure | 13.02 kPa (at 20 °C) |
Density | 3.46 g/cm³ |
Flash Point | 11 to 12 °C |
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