Main page (Russian)
Search in database (English)
Properties of substance:
nitrogen trifluoride
Group of substances:
inorganic
Physical appearance:
colorless gas
Empirical formula (Hill's system for organic substances):
F
3
N
Structural formula as text:
NF3
Molar/atomic mass: 71.002
Melting point (°C):
-206.79
Boiling point (°C):
-129.06
Solubility (g/100 g of solvent):
water
: insoluble [
Ref.
]
Numerical data:
Year of discovery: 1928
Density:
1.76 (-208.5°C, g/cm
3
)
1.532 (-129.06°C, g/cm
3
)
Reactions of synthesis:
Yeild 70%. [
Ref.1
]
NH
4
F + 3F
2
→ NF
3
+ 4HF
Yeild 30%. [
Ref.1
]
N
2
+ 3F
2
→ 2NF
3
[
Ref.1
,
Ref.2
]
2NH
3
+ 3F
2
→ N
2
+ 6HF
Vapour pressure (Torr):
10 (-171°C)
100 (-153°C)
Dipole moment (D):
0.24 (20°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-126 (g)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-84.4 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
260.6 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
53.26 (g)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
0.4
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
11.6
Critical temperature (°C):
-39.25
Critical pressure (MPa):
4.531
References:
Chemical Reviews. - 1962. - Vol. 62, No. 1. - pp. 2-4
Nakajima T., Zemva B., Tressaud A. Advanced inorganic fluorides: Syntesis, Characterization and Applications. - Elsevier, 2000. - pp. 630
Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.3. - Л.: Химия, 1976. - pp. 100 [Russian]
Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 401 [Russian]
Панкратов А.В. Химия фторидов азота. - М.: Химия, 1973 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 50 [Russian]
Токсикологический вестник. - 2001. - №2. - pp. 37-38 [Russian]
Фтор и его соединения. – Под ред. Саймонса Дж., Т. 1. - М.: ИИЛ, 1953. - pp. 76-78 [Russian]
What information do you need?
© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru