Dissolving pure silver to make silver nitrate

TL;DR

Learn how to make silver nitrate, a versatile chemical compound used in chemistry experiments, by reacting silver metal with nitric acid.

Transcript

Today we're making some silver nitrate which is a salt of silver metal. Silver nitrate has historically been used as an antiseptic and it has a few uses in chemistry. I don't have any plans to use it in a synthesis reaction but I do want to carry out some demonstrations. I want to finally get around to doing the silver mirror experiment and I also ... Read More

Key Insights

• 😒 Silver nitrate has a long history of use as an antiseptic and in chemical demonstrations.
• 🥈 The process of making silver nitrate involves reacting silver metal with nitric acid and evaporating off the water.
• 🫢 The reaction produces nitrogen dioxide gas, which gives the solution its color.
• 💦 Ventilation and safety precautions are necessary when working with silver nitrate due to the release of toxic fumes.
• 🥈 The resulting silver nitrate can be used in various chemistry experiments and reactions.
• 🌱 Seed crystals can be added to a supersaturated solution of silver nitrate to initiate crystallization.
• 🫗 Excess liquid can be poured off from the crystal solution before drying.

Questions & Answers

Q: What is the process of making silver nitrate?

To make silver nitrate, silver metal is reacted with nitric acid. The reaction produces silver nitrate, nitrogen dioxide gas, and water. The water is then removed by evaporation to obtain silver nitrate crystals.

Q: What are the uses of silver nitrate in chemistry?

Silver nitrate has various uses in chemistry, such as in chemical demonstrations and as an antiseptic. It can form a silver mirror through a chemical reaction and can be mixed with other substances to create water-sensitive explosives.

Q: Why is it important to heat the reaction mixture gradually?

Heating the reaction mixture gradually allows the reaction to start on its own without becoming too violent. Once the reaction begins, it generates its own heat to sustain the reaction.

Q: What precautions should be taken when working with silver nitrate?

Silver nitrate should be handled in a well-ventilated area due to the release of toxic nitrogen dioxide fumes. It is also sensitive to light and should be kept in a dark container or covered with aluminum foil to prevent degradation.

Summary & Key Takeaways

• Silver nitrate is a salt of silver metal with various uses in chemistry, including as an antiseptic and in chemical demonstrations.

• The process of making silver nitrate involves reacting silver metal with nitric acid and evaporating the water to obtain silver nitrate.

• The reaction produces nitrogen dioxide gas, which gives the solution its color, and the reaction can be dangerous due to the release of toxic nitrogen dioxide fumes.