Properties & Uses of Ammonia & Ammonium Salts

Physical Properties of Ammonia Colourless gas with pungent choking smell Alkaline gas (turns damp red limus paper blue) Less dense than air Very soluble in water Tests For Ammonia You can test for the presence of ammonia with the two tests below: Test 1 Hold a damp red limus paper into unknown gas. If the …

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Manufacturing Ammonia

Haber Process Ammonia ($\text{NH}_{3}$) is manufactured from nitrogen and hydrogen by the Haber process (which is a reversible reaction). Starting Ingredients – Nitrogen & Hydrogen Nitrogen is obtained from the fractional distillation of liquid air. Hydrogen is obtained from steam reforming of natural gas: $\text{CH}_{4}(\text{g}) + 2\text{H}_{2}\text{O}(\text{g}) \rightarrow \text{CO}_{2}(\text{g})+4\text{H}_{2}(\text{g})$ cracking of petroleum fractions: $\text{C}_{2}\text{H}_{6}(\text{g}) \rightarrow …

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Preparation of Soluble Salts & Insoluble Salts

Preparation of Soluble Salts The methods of preparing soluble salts are categorised into: Solution + Solid Solution + Solution Solution + Solid In the “solution + solid” method, a solid and solution are reacted together to form soluble salt. You may follow the following procedures to prepare soluble salts: Add solid, a little at a …

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