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Phosphoric acid (H3PO4) is a mineral acid
with the chemical formula H3PO4. Here are some details about phosphoric acid:
- Chemical formula: H3PO4
- CAS (Chemical Abstracts Service) number:
7664-38-2
- Molecular weight: 97.994 g/mol
- Density: 1.885 g/cm3 (at 25°C)
- Melting point: 42.35 °C (108.23 °F; 315.5
K)
- Boiling point: 158 °C (316 °F; 431 K)
- Solubility in water: Miscible (completely
soluble)
Phosphoric acid is a strong acid and is typically found as a viscous liquid. It is colorless and odorless. Phosphoric acid is commonly used in various industrial applications, including:
1. Food and beverage industry: It is used as an acidulant and flavoring agent in soft drinks, as well as in the production of food additives like phosphates.
2. Fertilizer industry: It is a key component in the production of phosphate fertilizers, which are essential for plant growth.
3. Rust removal: Phosphoric acid is used for rust removal and conversion coatings on metals.
4. Household cleaners: It's found in certain household cleaning products, especially those designed for removing mineral deposits or rust stains.
5. Dental products: In dentistry, phosphoric acid is used as an etching agent to prepare the surface of teeth for bonding with composite materials.
Though phosphoric acid has many industrial uses, it's important to handle it with care as it is corrosive and can cause skin and eye irritation upon contact.
If you need further information or have specific questions, feel free to ask!