Chapter 15:Ammonia and it's uses
Major constituent of the air (78%)
Inactive gas in comparison with oxygen
Essential for the formation of animal and plant protein
Atmospheric nitrogen is taken into the soil as nitrates.
It is converted into nitrates by fixing bacteria.
These nitrates are then absorbed into plants to become protein.
Plants are then eaten by animals forming animal protein.
Bacteria decays this protein when plant/animal dies releasing nitrogen back into the atmosphere.
Ammonia is the most important compound of nitrogen (NH3)
It is industrially produced by the Haber process.
Ammonia is industrially produced by the Habber process from nitrogen and hydrogen gases.
These two gases are combined directly in a ratio of 3:1 and passed over an iron catalyst at 450°C and 200 atompshere of pressure.
The catalyst used is the metal iron with prometers of iron oxide.
When ammonia is produced it is liquidified and the excess is recycled.
NITROGEN + HYDROGEN ➡️AMMONIA
N2(g) + 3H2(g) ➡️3NH3(g)
This is an exothermic reaction. It is reversible with forward.
IT IS THE ONLY ALKALINE GAS WHICH IS COMMON
IT TURNS MOIST RED LITMUS PAPER BLUE.
IT ALSO FUMES WITH HYDROGEN CLORIDE AND FORMS WHITE FUMES OF AMMONIUM CHLORIDE.
Manufacture of nitrogenous fertilizers
Oxidized to nitric acid
Plastics
Artificial fibres
Nitrogen for growth of stems and leaves
Phosphorus for healthy root growth
Potassium for flower and fruit formation
Calcium, sodium, magnesium, iron, zinc are also needed by plants in smaller amounts for healthy plant growth
This is a water pollution problem caused by nitrates being leached from farm land because of the high solubility of nitrates.
Reduces nitrogen content of nitrogenous fertilizers as lime is an alkali which reacts with ammonia salts to release Ammonia gas
Major constituent of the air (78%)
Inactive gas in comparison with oxygen
Essential for the formation of animal and plant protein
Atmospheric nitrogen is taken into the soil as nitrates.
It is converted into nitrates by fixing bacteria.
These nitrates are then absorbed into plants to become protein.
Plants are then eaten by animals forming animal protein.
Bacteria decays this protein when plant/animal dies releasing nitrogen back into the atmosphere.
Ammonia is the most important compound of nitrogen (NH3)
It is industrially produced by the Haber process.
Ammonia is industrially produced by the Habber process from nitrogen and hydrogen gases.
These two gases are combined directly in a ratio of 3:1 and passed over an iron catalyst at 450°C and 200 atompshere of pressure.
The catalyst used is the metal iron with prometers of iron oxide.
When ammonia is produced it is liquidified and the excess is recycled.
NITROGEN + HYDROGEN ➡️AMMONIA
N2(g) + 3H2(g) ➡️3NH3(g)
This is an exothermic reaction. It is reversible with forward.
IT IS THE ONLY ALKALINE GAS WHICH IS COMMON
IT TURNS MOIST RED LITMUS PAPER BLUE.
IT ALSO FUMES WITH HYDROGEN CLORIDE AND FORMS WHITE FUMES OF AMMONIUM CHLORIDE.
Manufacture of nitrogenous fertilizers
Oxidized to nitric acid
Plastics
Artificial fibres
Nitrogen for growth of stems and leaves
Phosphorus for healthy root growth
Potassium for flower and fruit formation
Calcium, sodium, magnesium, iron, zinc are also needed by plants in smaller amounts for healthy plant growth
This is a water pollution problem caused by nitrates being leached from farm land because of the high solubility of nitrates.
Reduces nitrogen content of nitrogenous fertilizers as lime is an alkali which reacts with ammonia salts to release Ammonia gas
