NPK - Revision history

Ellen References at 14:37, 10 November 2019

2019-11-10T14:37:31Z

NRJC at 21:15, 7 April 2019

2019-04-07T21:15:59Z

NRJC at 21:15, 7 April 2019

2019-04-07T21:15:14Z

NRJC at 07:57, 4 April 2019

2019-04-04T07:57:54Z

NRJC at 18:23, 27 January 2019

2019-01-27T18:23:20Z

NRJC: Created page with "==Key Stage 4== ===Meaning=== NPK is a mixture of fertilising compounds used in agriculture. ===About NPK=== : NPK stands for Nitrogen|Ni..."

2019-01-27T18:18:19Z

Created page with "==Key Stage 4== ===Meaning=== NPK is a mixture of fertilising compounds used in agriculture. ===About NPK=== : NPK stands for Nitrogen|Ni..."

New page

==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>

← Older revision		Revision as of 14:37, 10 November 2019
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	: [[NPK]] can also include other [[mineral]]s such as [[Calcium Phosphate]] and [[Calcium Sulphate]] as [[plant]]s also need both [[Calcium]] and [[Sulphur]].		: [[NPK]] can also include other [[mineral]]s such as [[Calcium Phosphate]] and [[Calcium Sulphate]] as [[plant]]s also need both [[Calcium]] and [[Sulphur]].
		+
		+	===References===
		+	====AQA====
		+
		+	:[https://www.amazon.co.uk/gp/product/1782945571/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945571&linkCode=as2&tag=nrjc-21&linkId=9e29fad914244909903e5e93f8a01d196 ''NPK fertilisers, page 105, GCSE Chemistry; The Revision Guide, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''NPK fertilisers, pages 234-235, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''NPK fertilisers, pages 268-9, GCSE Chemistry, Hodder, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1782945962/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945962&linkCode=as2&tag=nrjc-21&linkId=476bb5c8d1dfb5c08ac81b6d4d1c98d8 ''NPK fertilisers, pages 304, 305, GCSE Chemistry, CGP, AQA '']

@@ Line 5: / Line 5: @@
 ===About NPK===
 : [[NPK]] stands for [[Nitrogen|Nitrogen (N)]], [[Phosphorus|Phosphorous (P)]], [[Potassium|Potassium (K)]].
-: [[NPK]] is generally made by [[Chemical Reaction|reacting]] [[Ammonia]] with [[Nitric Acid]], [[Chemical Reaction|reacting]] [[Ammonia]] with [[Phosphoric Acid]] and combining these in a [[mixture]] with [[Potassium Chloride]] which is mined from the ground.
+: [[NPK]] is generally made by [[Chemical Reaction|reacting]] [[Ammonia]] with [[Nitric Acid]], [[Chemical Reaction|reacting]] [[Ammonia]] with Phosphoric Acid and combining these in a [[mixture]] with [[Potassium Chloride]] which is mined from the ground.
 Ammonia + Nitric Acid → Ammonium Nitrate

@@ Line 4: / Line 4: @@
 ===About NPK===
-: [[NPK]] stands for [[Nitrogen|Nitrogen (N)]], [[Phosphorous (P)]], [[Potassium|Potassium (K)]].
+: [[NPK]] stands for [[Nitrogen|Nitrogen (N)]], [[Phosphorus|Phosphorous (P)]], [[Potassium|Potassium (K)]].
 : [[NPK]] is generally made by [[Chemical Reaction|reacting]] [[Ammonia]] with [[Nitric Acid]], [[Chemical Reaction|reacting]] [[Ammonia]] with [[Phosphoric Acid]] and combining these in a [[mixture]] with [[Potassium Chloride]] which is mined from the ground.

@@ Line 1: / Line 1: @@
 ==Key Stage 4==
 ===Meaning===
-[[NPK]] is a [[mixture]] of [[fertiliser|fertilising]] [[compound]]s used in [[agriculture]].
+[[NPK]] is a [[mixture]] of [[fertiliser|fertilising]] [[compound]]s used in agriculture.
 ===About NPK===