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NPK
,Created page with "==Key Stage 4== ===Meaning=== NPK is a mixture of fertilising compounds used in agriculture. ===About NPK=== : NPK stands for Nitrogen|Ni..."
==Key Stage 4==
===Meaning===
[[NPK]] is a [[mixture]] of [[fertiliser|fertilising]] [[compound]]s used in [[agriculture]].
===About NPK===
: [[NPK]] stands for [[Nitrogen|Nitrogen (N)]], [[Phosphorous (P)]], [[Potassium|Potassium (K)]].
: [[NPK]] is generally made by [[Chemical Reaction|reacting]] [[Ammonia]] with [[Nitric Acid]], [[Phosphoric Acid]] and combining them in a [[mixture]] with [[Potassium Chloride]] which is mined from the ground.
Ammonia + Nitric Acid → Ammonium Nitrate
: <chem>NH3 + HNO3 -> NH4NO3</chem>
Ammonia + Phosphoric Acid → Ammonium Phosphate
: <chem>3NH3 + H3PO4 -> (NH4)3PO4</chem>
===Meaning===
[[NPK]] is a [[mixture]] of [[fertiliser|fertilising]] [[compound]]s used in [[agriculture]].
===About NPK===
: [[NPK]] stands for [[Nitrogen|Nitrogen (N)]], [[Phosphorous (P)]], [[Potassium|Potassium (K)]].
: [[NPK]] is generally made by [[Chemical Reaction|reacting]] [[Ammonia]] with [[Nitric Acid]], [[Phosphoric Acid]] and combining them in a [[mixture]] with [[Potassium Chloride]] which is mined from the ground.
Ammonia + Nitric Acid → Ammonium Nitrate
: <chem>NH3 + HNO3 -> NH4NO3</chem>
Ammonia + Phosphoric Acid → Ammonium Phosphate
: <chem>3NH3 + H3PO4 -> (NH4)3PO4</chem>