2020-12-11
1、What is
phosphoric acid?
Phosphoric acid, also known as phosphoric
acid (V) or orthophosphoric acid, is a commonly used acid. So the raw form of
this acid is extracted from phosphate rock, while the purer form of white
phosphorus is produced industrially. Pure phosphoric acid is generally a
crystalline solid and has a low concentration. In general, it is a colorless,
odorless, non-volatile, syrupy liquid.
Phosphoric acid is also a mineral acid. The
formula is H3PO4, containing one phosphorus atom, four oxygen atoms, three
hydrogen atoms.
2、the use of
phosphoric acid.
Orthophosphoric acid is an important
chemical with a wide range of uses in industrial, agricultural, and everyday
products. Anyway, here we will look at some of the popular uses of phosphoric
acid.
- Rust Removal
- In the area of food and beverages.
- Personal Care
- For Agriculture
- Pharmaceuticals
3、Other uses
Phosphoric acid is used to remove rust.
Among the various acids, phosphoric acid is
often used to remove rust from metals such as steel. When this acid is used, it
reacts with the rust and converts the typical reddish-brown iron oxide (ferric
oxide) into a black compound, now called iron phosphate. This black iron
phosphate is easy to remove.
Phosphoric acid is used in food and
beverages.
Phosphoric acid is often used as a food
additive. This acid regulates the acidity of foods such as jams, cereal bars,
processed meats, cheeses, etc. It is used in the beverage industry as a food
additive. In the beverage industry, phosphoric acid is used as a souring agent.
It helps inhibit the formation of fungi and bacteria. It also adds flavor to
these beverages. However, there has been controversy about the health effects
and benefits of this acid.
Phosphoric Acid Used in Personal Care
Phosphoric acid is essential in the
manufacture of various personal care products, including cleaning products,
bath products, perfumes, hair care products, dyes, nail products, cosmetics,
and other skincare products. These products include cleaning products, bath
products, perfumes, hair care products, dyes, nail products, cosmetics, and
other skincare products. Besides, phosphoric acid is also used to control the
pH of these products.
Phosphoric Acid Applications in
Agriculture
Nearly 80% of the phosphoric acid produced
is reportedly used in the production of fertilizers. Phosphoric acid is also
used as an additive and flavoring agent in animal or poultry feed.
Phosphoric Acid in Pharmaceutical
Applications
This acid is mainly used as an intermediate
in pharmaceuticals. One of the main applications of phosphoric acid is dental.
It is used as an etching solution and is often used to clean teeth. Other uses
of phosphoric acid include tooth whitening agents or mouthwashes. Phosphoric
acid is also commonly used as an anti-nausea agent.
Other Uses of Phosphoric Acid
There are few other uses for this acid.
Phosphoric acid is used as an electrolyte in fuel cells or hydrogen-oxygen
generators. Phosphoric acid is also used to make synthetic detergents and to
treat water and metals.
It is also used in the construction
industry to remove mineral deposits, cement stains, and hard water stains. It
is used as a chemical oxidizer to produce activated carbon products.
Frequently Asked Questions (FAQ)
1. What is the nickname for phosphoric
acid?
Answer: orthophosphoric acid.
2. Write the chemical formula of phosphoric
acid.
Answer: H3PO4.
3. What is the molecular weight, boiling
point, and melting point of phosphoric acid?
Answer:Molecular weight=97.994g/mol,
boiling point=158℃, melting point=42.35℃.
4. Is orthophosphoric acid a strong acid or
a weak acid? Why?
Analysis: Weak acid due to incomplete
dissociation in water.
5. List two types of phosphoric acid that
are widely used.
Answer: Phosphoric acid is widely used in
fertilizers and food acidification.
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