AirCO2
H3 PO4
Phosphoric acid
Ca5 (PO4 )3FPhosphate rock
Ca5 (PO4 )3FPhosphate rock
H2SO4
Sulfuric acid
Limestone
Fractional distillation of liquid air
Gas reformingHaber Process
Contact Process
Ostwald Process
Natural gas
Fertilisers
LANLimestoneammoniumnitrate
(NH4 )3PO4
Ammonium phosphate
TSPTriplesuperphosphate
(NH4 )2 SO4
Ammonium sulfate
SSPSinglesuperphosphate
H2 NCONH2
Urea
Wheat
Oxygen cylinders
CO2 fire extinguisher
Apples
Lettuce
Maize
Strawberries
Grapes
NH3
Ammonia
S
SO2SO3
H2O
O2
NO + NO2HNO3
O2
H2
N2
Nitric acid
