Preparation of Nitrogen & Manufacture Nitric Acid (55x90cm)
Description
The “Preparation of Nitrogen & Manufacture Nitric Acid” (55x90 cm) educational chart illustrates the major laboratory methods for preparing nitrogen gas and the industrial Ostwald process for producing nitric acid, serving as a comprehensive visual guide for chemistry classrooms.
Chart Features
Large-format (55x90 cm), laminated and multicolor for clarity and durability in educational settings.
Preparation of Nitrogen:
Commonly shows laboratory generation of nitrogen by heating ammonium nitrite, or by removing oxygen and carbon dioxide from air using chemicals such as copper and sodium hydroxide.
Stepwise reactions and apparatus diagrams for collecting pure nitrogen gas.
Manufacture of Nitric Acid (Ostwald Process):
Clearly diagrams the multi-step Ostwald process:
Catalytic oxidation of ammonia:
4
N
H
3
+
5
O
2
→
P
t
,
850
∘
C
4
N
O
+
6
H
2
O
4NH
3
+5O
2
Pt, 850
∘
C
4NO+6H
2
O
Oxidation of NO to NO₂:
2
N
O
+
O
2
→
2
N
O
2
2NO+O
2
→2NO
2
Absorption of NO₂ in water to produce nitric acid:
4
N
O
2
+
2
H
2
O
+
O
2
→
4
H
N
O
3
4NO
2
+2H
2
O+O
2
→4HNO
3
Includes process flow, catalyst usage (platinum/rhodium), oxidation/absorption towers, and product collection.
Can highlight typical conditions:
High temperature (approx. 850–900°C), pressure stages, and catalyst employed.
Flow diagrams showing gas movement, cooling, absorption, and acid concentration.
Educational Value
Visually demonstrates both laboratory and industrial chemical engineering workflows, essential for students to grasp real-world production techniques.
Reinforces multi-step redox and catalytic reactions, industrial relevance, and key chemical equations foundational to chemistry curricula.
Supports classroom teaching, exam revision, and laboratory demonstration of nitrogen and nitric acid chemistry.
This chart provides a complete instructional overview, uniting laboratory and industrial perspectives in nitrogen gas and nitric acid production.
Specifications
| Model No. | N-C076 |
|---|