Tech grade 85% Phosphoric Acid is a specific concentration of phosphoric acid, with 85% of the solution composed of H₃PO₄, and the remaining 15% typically consisting of water. It is intended for technical or industrial applications and may have impurities or variations compared to higher-purity grades used in more specialized settings.
Here are some key aspects of 85% Phosphoric Acid (Tech grade):
Physical Properties:
Appearance: slightly yellow liquid.
Odor: It is typically odorless, although there might be a slight acidic smell.
Density: higher than water.
pH: highly acidic, often below 1.
Solubility: highly soluble in water.
Miscibility: It is miscible with water in all proportions, forming a homogeneous solution.
Corrosiveness: It can corrode metals and can cause burns or irritation upon contact with skin and eyes.
CAS number: 7664-38-2
Applications:
1. Metal Surface Treatment:
Descaling and Rust Removal: 85% Phosphoric Acid is widely used for descaling and removing rust from metal surfaces. It reacts with oxides and mineral deposits on metals, making it valuable in industries where clean metal surfaces are crucial, such as in the preparation of metal surfaces for painting or coating.
2. Phosphate Fertilizer Production:
Reacting with Phosphate Rock: One of the major applications is in the production of phosphate fertilizers. Phosphoric acid reacts with phosphate rock to form various phosphate compounds, which are then used as fertilizers. This process is essential for agriculture and plant nutrition.
3. Water Treatment:
pH Adjustment: Phosphoric acid is employed in water treatment to adjust pH levels. It can neutralize alkaline substances in water and act as a pH regulator, making it useful in water treatment processes where maintaining a specific pH range is crucial.
4. Electronics Manufacturing:
Semiconductor Etching: Phosphoric acid is utilized for etching semiconductors in the electronics industry. It helps in the fabrication of electronic components by selectively removing material from semiconductor surfaces.
5. Laboratory Use:
Analytical and Experimental Procedures: In laboratories, 85% Phosphoric Acid is used for various analytical and experimental purposes. Its strong acidic properties make it valuable in certain chemical reactions and laboratory processes.
6. Detergent and Cleaner Formulations:
Scale and Deposits Removal: It is included in certain detergent and cleaner formulations, particularly those designed for removing hard water deposits and scale from surfaces.
7. Corrosion Inhibition:
Metal Protection: In certain applications, phosphoric acid can be used as a corrosion inhibitor to protect metal surfaces from corrosion.
When working with 85% Phosphoric Acid Tech grade, it is essential to follow safety guidelines, wear appropriate protective equipment, and adhere to local regulations regarding its storage, transportation, and disposal.
technische Qualität
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