Description

Chart Preparation Of Nitrogen

This chart can be designed for a 75x100cm board and will illustrate two common methods for preparing nitrogen gas in a laboratory setting.

Content:

• Title: Large and centered – “Laboratory Preparation of Nitrogen Gas”

Method 1: Decomposition of Ammonium Chloride and Sodium Nitrite

1. Preparation:

   •  Label “Ammonium Chloride (NH4Cl)” and “Sodium Nitrite (NaNO2)”
   • Briefly mentions mixing these in a flask with water.

2. Heating:

   •  Label “Flask (Δ)” with a heating mantle symbol (Δ).

3. Gas Evolution:

   • Arrow pointing upwards from the flask labeled “Nitrogen Gas (N2)”

4. Collection:

   •  Label “Water Displacement” with a trough filled with water and an inverted test tube collecting gas.

Method 2: Air Liquefaction (Simplified)

1. Air Intake:

   •  Label “Air” with an arrow pointing downwards.

2. Cooling and Compression:

   • Label “Cooling & Compression” with a combined symbol of a chiller and compressor.

3. Fractional Distillation:

   •  Label “Fractional Distillation” with a depiction of a distillation column.

4. Product Collection:

   •  Label “Liquid Nitrogen (LN2)” with a canister representing storage
   •  labeled “Nitrogen Gas (N2)” with an arrow pointing upwards for collection from the distillation process

Additional Considerations:

• clear arrows to show the flow of materials and gases.
•  color-coding the gas streams (e.g., blue for N2).