Pure glacial acetic acid, that is, anhydrous acetic acid, acetic acid is one of the important organic acids, organic compounds. It solidifies into ice at low
temperatures and is often called glacial acetic acid. The freezing point is 16.6 ° C (62 ° F), and after solidification, it becomes a colorless crystal. Its aqueous
solution is weakly acidic and highly corrosive, and it is strongly corrosive to metals. The steam has an irritating effect on the eyes and nose. So, what are the
specific uses of glacial acetic acid in different industries?
First, glacial acetic acid industrial use
1, used for synthetic dyes and inks.
2. In the food industry, it is used as acidity regulator, acidifier, pickling agent, flavor enhancer, spice and so on. It is also a good antimicrobial agent, mainly due to
its ability to reduce the pH below the pH required for optimal microbial growth.
3, it is used in rubber and plastics industry. It is used as a solvent and starting material for many important polymers (such as PVA, PET, etc.) in the rubber and plastics industry.
4, used as a starting material for paint and adhesive components
5, glacial acetic acid also plays a very important role in the laundry, mainly in the clothes to prevent fading, has a strong removal of stains, can neutralize the pH,
so in the laundry glacial acetic acid is more popular. When using, it needs to be used according to certain instructions, and can not blindly use glacial acetic acid.
Second, glacial acetic acid chemical use
1, for the synthesis of cellulose acetate. Cellulose acetate is used in photographic film and textiles. Before the invention of cellulose acetate film, photographic film
used to be made from nitrates and there were many safety concerns.
2, used as a solvent for the synthesis of terephthalic acid. P-xylene is oxidized to terephthalic acid. Terephthalic acid is used in the synthesis of PET and is widely
used in the manufacture of plastic bottles.
3, widely used in reaction with various alcohols to synthesize esters. Acetate derivatives are widely used as food additives.
4, for the synthesis of vinyl acetate monomer. The monomer can then be polymerized to form poly (vinyl acetate), also commonly known as PVA. PVA has a wide
range of applications, from medicine (due to its biocompatibility to nanotechnology (as a stabilizer) to paper making).
5, used as a solvent in many organic catalytic reactions.
6, used for scale and rust remover. When acetic acid reacts with water, the scale hisses and bubbles disappear, breaking it down from the solid into a liquid that
can be easily removed.
Third, medical grade glacial acetic acid use
1, for a technique called pigmented endoscopy, which is an alternative to traditional endoscopy.
2, for the treatment of external otitis.
3, glacial acetic acid has a strong corrosive, but also has a good anti-fungal effect, so the general medical clinical above will be used to treat gray nails, which is a
fungal infection, so the use of glacial acetic acid can treat gray nails. But you need to follow a doctor’s advice when using it.
4. In laboratory tests on mice, acetic acid has been shown to reduce inflammation in mice.
