This is a summary of the text:
The text is a transcript of a video about different types of acids and how they react with various substances. The narrator starts by introducing himself and promoting a course on 3D modeling from Geekbrains. He then shows how concentrated sulfuric acid can corrode organic materials such as paper, sugar, and chicken skin. He compares it with chlorine sulphonic acid, which is 100 times stronger and can dissolve gloves and metals. He then moves on to fluorine sulphonic acid, which is 100,000 times stronger than sulfuric acid and can even corrode glass. He explains that these acids are called super acids and are used as catalysts in petrochemistry. He concludes by asking the viewers to like, subscribe, and press the bell for more videos.
Here are the key facts extracted from the text:
1. Acetic acid is added to pickles as a preservative.
2. The safety concentration of hydrochloric or sulfuric acids used in school chemistry did not exceed 10%.
3. Concentrated sulfuric or nitric acids were used at university for laboratory work.
4. The pH scale determines the acidity level of a solution.
5. The Hammett acidity function is more accurate for concentrated acids without water impurities.
6. 100% sulfuric acid has a Hammett acidity function value of -12.
7. Chlorosulfonic acid is 100 times stronger than 100% sulfuric acid.
8. Chlorosulfonic acid can corrode latex or nitrile gloves and skin.
9. Chlorosulfonic acid reacts with water to form concentrated sulfuric and hydrochloric acids.
10. Fluorosulfonic acid is 100,000 times stronger than sulfuric acid and can corrode glass.
These facts are based on the content provided and do not include any opinions or subjective statements.