Preparation of Bromine Water
Bromine water can be prepared in the laboratory by direct mixing of fumes of diatomic bromine (Br2) in water (H2O) , but this isn’t a safe method and alternatively it is prepared safely by breaking sodium bromide (NaBr) in the presence of bleach (NaClO) and hydrochloric acid (HCl).
2NaBr + NaClO + 2HCl → Br2 + 3NaCl + H2O
Bromine Water Test
Bromine Water Test is an important test in Practical Organic Chemistry that deals with detecting the presence of unsaturation, such as carbon-carbon (C-C) double or triple bonds in organic compounds, i.e. it is used to identify the presence of alkane or alkene in an organic compound.
In this article, we will discuss this test in detail, including the preparation of bromine water, the principle of the test, and various substances that undergo this test with their reactions.
Table of Content
- What is Bromine Water?
- Preparation of Bromine Water
- Principles of Bromine Water Test
- Bromine Water Test Reaction
- Bromine Water Test for Different Substances
- Application of Bromine Water Test