In this I/GCSE Chemistry blog post, we will be looking at how nitric acid is created, let's go!
MANUFACTURE OF NITRIC ACID
- All you need to recall of this process is:
catalytic oxidation +air + water
ammonia → nitrogen monoxide → nitric acid
PROPERTIES OF NITRIC ACID
- It is a dangerous acid.
- It reacts with ammonia to make ammonium nitrate - an important fertiliser.
- When it is dilute, it has reactions typical of other acids like hydrochloric acid or sulphuric acid.
Characteristics of acid:
- Acids turn blue litmus red, due to the presence of hydrogen ions (H+) in their solutions.
- They react with bases and alkalis to give a salt and water.
- They react with carbonates. There is an effervescence of carbon dioxide which can be tested with limewater.
CONCENTRATED NITRIC ACID
- In addition to being an acid it is also an oxidising agent
- For instance it will react with copper, oxidising it to copper(II) nitrate.
- It will form passive layers on many metals.
- These are layers of oxide, which protect the metal underneath from further attack.
That is all for this post!
References:
https://www.google.com/url?sa=i&url=https%3A%2F%2Fismailtahasildar.blogspot.com%2F2018%2F03%2Fparamedical-courses-chemistry-notes.html&psig=AOvVaw0xD5ZeHsa218GRN64Mi4Z3&ust=1628744699118000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCMjr0IaZqPICFQAAAAAdAAAAABAD
https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.chemicals.co.uk%2Fnitric-acid&psig=AOvVaw0yWXgXjEabO09aEmc8egeV&ust=1628744776424000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCIDd3KKZqPICFQAAAAAdAAAAABAJ