How is phosphine prepared?
Answers
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Calciumphosphide reacts with hydrochloricacid to form calciumchloride and phosphine.
Ca 3 P 2 +6HCl→3CaCl 2 +2PH 3
↑(b) Aluminiumphosphide reacts with sulphuricacid to form aluminumsulphate and phosphine.
2AlP+3H
2
SO
4
→Al
2
(SO
4
)
3
+2PH
3
↑
(c) White phosphorous is heated with concentric sodiumhydroxide solution, in the inert atmosphere of CO
2
to form phosphine and sodiumhypophosphite
P
4
+3NaOH+3H
2
O→PH
3
↑+3NaH
2
PO
2
Answer:
Phosphine (PH3) is a chemical compound which is prepared by heating phosphorous acid or also by reacting calcium phosphide with water. Phosphine finds its place in the group of organophosphorus compounds with the chemical formula of PH3. Philippe Gengembre discovered it in 1783. It can be found in human tissues, blood, urine, saliva, etc. Let us look at this chemical in greater detail in this chapter. We will see its physical properties, chemical properties and uses as well.