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PHOSPHORUS
Тақырып бойынша 11 материал табылды
PHOSPHORUS
Материал туралы қысқаша түсінік
PHOSPHORUS (Фосфор) химия пәнін ағылшын тілінде жүргізетін мұғалімдерге арналған
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#1 слайд
PHOSPHORUS
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PHOSPHORUS
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History of Phosphorus
Was discovered by German alchemists H. Brand in 1969.
Later, A. Lavoisier proved that phosphorus is an
independent chemical element. J. Proust and M. Claport
established its wide distribution in the earth's crust, mainly
in the form of calcium phosphate.
2 слайд
History of Phosphorus Was discovered by German alchemists H. Brand in 1969. Later, A. Lavoisier proved that phosphorus is an independent chemical element. J. Proust and M. Claport established its wide distribution in the earth's crust, mainly in the form of calcium phosphate.
#3 слайд
The position of phosphorus
in the table of D.I.Mendeleyev
Symbol P
Atomic number 15
Atomic mass 31
Electron
configuration
3s
2
3p
3
Oxidation state 5, 3, 1, 0, −1, −3
Boiling point 279,85 °C
Melting point 44,15 °C
3 слайд
The position of phosphorus in the table of D.I.Mendeleyev Symbol P Atomic number 15 Atomic mass 31 Electron configuration 3s 2 3p 3 Oxidation state 5, 3, 1, 0, −1, −3 Boiling point 279,85 °C Melting point 44,15 °C
#4 слайд
Finding in nature
The phosphorus content in the earth's
crust is 0.093%. In nature,
phosphorus is found only in the form
of compounds, mainly apatite's,
phosphoresces
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Finding in nature The phosphorus content in the earth's crust is 0.093%. In nature, phosphorus is found only in the form of compounds, mainly apatite's, phosphoresces
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Phosphorus production
Phosphorus is obtained from apatite's or phosphoresces
as a result of interaction with coke and silica at a
temperature of about 1600 ° C
The resulting phosphorus vapor condenses in the
receiver under a layer of water into an allotropic
modification in the form of white phosphorus.
Instead of phosphoresces for the production of
elemental phosphorus, it is possible to reduce coal
and other inorganic phosphorus compounds, for
example, including metaphosphoric acid:
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Phosphorus production Phosphorus is obtained from apatite's or phosphoresces as a result of interaction with coke and silica at a temperature of about 1600 ° C The resulting phosphorus vapor condenses in the receiver under a layer of water into an allotropic modification in the form of white phosphorus. Instead of phosphoresces for the production of elemental phosphorus, it is possible to reduce coal and other inorganic phosphorus compounds, for example, including metaphosphoric acid:
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Properties:
1.The melting point of phosphorus is 44.1°C
2.Boiling point is 280°C
3. Specific gravity is 1.82(white), (red) 2.20,
(black) 2.25-2.69, with a valence of 3 or 5.
4.There are four allotropic forms of phosphorus:
two forms of white (or yellow), red, and black (or
violet).
5.Ordinary phosphorus is a waxy white solid.
6.It is colorless and transparent in its pure form.
7.Phosphorus is insoluble in water, but soluble in
carbon disulfide.
8. Phosphorus burns spontaneously in air to its
pent-oxide. It is highly poisonous.
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Properties: 1.The melting point of phosphorus is 44.1°C 2.Boiling point is 280°C 3. Specific gravity is 1.82(white), (red) 2.20, (black) 2.25-2.69, with a valence of 3 or 5. 4.There are four allotropic forms of phosphorus: two forms of white (or yellow), red, and black (or violet). 5.Ordinary phosphorus is a waxy white solid. 6.It is colorless and transparent in its pure form. 7.Phosphorus is insoluble in water, but soluble in carbon disulfide. 8. Phosphorus burns spontaneously in air to its pent-oxide. It is highly poisonous.
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CHEMICAL PROPERTIES OF
PHOSPHORUS
Phosphorus
as an
oxidizer
Phosphorus as
a
reducing
agent
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CHEMICAL PROPERTIES OF PHOSPHORUS Phosphorus as an oxidizer Phosphorus as a reducing agent
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9 слайд
#10 слайд
10
PHYSICAL
PROPERTIES
30 20
CHEMICAL
PROPERTIES
FORMULA
10 30 20
10 30 20
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10 PHYSICAL PROPERTIES 30 20 CHEMICAL PROPERTIES FORMULA 10 30 20 10 30 20
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12.10.2018
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