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Properties of substance:

silver

Group of substances:

inorganic

Physical appearance:

white cubic metal

Empirical formula (Hill's system for organic substances):

Ag

Structural formula as text:

Ag

Molar/atomic mass: 107.87

Melting point (°C):

960.5

Boiling point (°C):

2167

Solubility (g/100 g of solvent):

gallium: 204.5 (500°C) [Ref.]
mercury: 0.042 (18°C) [Ref.]
mercury: 0.035 (20°C) [Ref.]
mercury: 0.08 (50°C) [Ref.]
mercury: 0.23 (100°C) [Ref.]
mercury: 0.48 (150°C) [Ref.]
mercury: 0.94 (200°C) [Ref.]
silver chloride fused: 0.0232 (490°C) [Ref.]
silver chloride fused: 0.0452 (700°C) [Ref.]
uranium molten: 0.03 (1135°C) [Ref.]
water: 0.0000035 (20°C) [Ref.]

Numerical data:

Thermal conductivity (W/m·K): 458.9
Hardness on the Mohs’ scale: 2.7

Density:

10.5 (20°C, g/cm3)
9.4 (960.8°C, d4)

Reactions:

  1. [Ref.1]
    2Ag + 2HCl → 2AgCl + H2
  2. [Ref.1]
    6Ag + 6HClO3 → 5AgClO3 + AgCl + 3H2O
  3. [Ref.1]
    3Ag + 4HNO3 → 3AgNO3 + NO + 2H2O
  4. [Ref.1]
    Ag + 2HNO3 → AgNO3 + NO2 + H2O
  5. [Ref.1aster, Ref.2]
    Ag + F2 → AgF2
  6. [Ref.1aster, Ref.2]
    2Ag + S → Ag2S
  7. [Ref.1]
    2Ag + 4HI → 2H[AgI2] + H2

Half-life:

10047Ag = 2.01 min (β+ (100%))
100m47Ag = 2.24 min ()
10147Ag = 11.1 min (β+ (100%))
101m47Ag = 3.10 s (internal transition (100%))
10247Ag = 12.9 min (β+ (100%))
102m47Ag = 7.7 min (β+ (51%), internal transition (49%))
10347Ag = 65.7 min (β+ (100%))
103m47Ag = 5.7 s (internal transition (100%))
10447Ag = 69.2 min (β+ (100%))
104m47Ag = 33.5 min (β+ (about 100%), internal transition)
10547Ag = 41.29 d (β+ (100%))
105m47Ag = 7.23 min (internal transition (about 100%), β+ (0.34%))
10647Ag = 23.96 min ()
106m47Ag = 8.28 d (β+ (about 100%), internal transition)
10747Ag = stable ( (isotopic abundance 51,839%))
107m47Ag = 44.3 s (internal transition (100%))
10847Ag = 2.382 min (β- (97.15%), β+ (2.85%))
108m47Ag = 438 y (β+ (91.3%), internal transition (8.7%))
10947Ag = stable ( (isotopic abundance 48,161%))
109m47Ag = 39.6 s (internal transition (100%))
11047Ag = 24.56 s (β- (about 100%), electron capture (0.3%))
110m47Ag = 660 ns (internal transition (100%))
110n47Ag = 249.83 d (β- (98.67%), internal transition (1.33%))
11147Ag = 7.433 d (β- (100%))
111m47Ag = 64.8 s (internal transition (99.3%), β- (0.7%))
11247Ag = 3.130 h (β- (100%))
11347Ag = 5.37 h (β- (100%))
113m47Ag = 68.7 s (internal transition (64%), β- (36%))
11447Ag = 4.6 s (β- (100%))
114m47Ag = 1.50 ms (internal transition (100%))
11547Ag = 20.0 min (β- (100%))
115m47Ag = 18.0 s (β- (79.0%), internal transition (21.0%))
11647Ag = 3.83 min (β- (100%))
116m47Ag = 20 s (β- (93.0%), internal transition (7.0%))
116n47Ag = 9.3 s (β- (92.0%), internal transition (8.0%))
11747Ag = 73.6 s (β- (100%))
117m47Ag = 5.34 s (β- (94.0%), internal transition (6.0%))
11847Ag = 3.76 s (β- (100%))
118m47Ag = 0.1 μs (internal transition (100%))
118n47Ag = 2.0 s (β- (59%), internal transition (41%))
118p47Ag = 0.1 μs (internal transition (100%))
11947Ag = 6.0 s (β- (100%))
119m47Ag = 2.1 s (β- (100%))
12047Ag = 1.52 s (β- (100%), β-n)
120m47Ag = 940 ms ()
120n47Ag = 384 ms (internal transition (68%), β- (32%))
12147Ag = 780 ms (β- (100%), β-n (0.080%))
12247Ag = 529 ms (β- (100%), β-n (0.186%))
122m47Ag = 550 ms (β- (100%), β-n)
122n47Ag = 200 ms (β- (100%), β-n)
122p47Ag = 6.3 μs (internal transition (100%))
12347Ag = 300 ms (β- (100%), β-n (1.0%))
123n47Ag = 202 ns (internal transition (100%))
123p47Ag = 393 ns (internal transition (100%))
12447Ag = 177.9 ms (β- (100%), β-n (1.3%))
124m47Ag = 144 ms (β- (100%), β-n )
124n47Ag = 1.7 μs (internal transition (100%))
12547Ag = 159 ms (β- (100%), β-n)
125n47Ag = 80 ns (internal transition (100%))
125p47Ag = 491 ns (internal transition (100%))
12647Ag = 99.3 ms (β- (100%), β-n)
126m47Ag = 92 ms (β- (100%), β-n)
126n47Ag = 27 μs (internal transition (100%))
12747Ag = 89 ms (β- (100%), β-n)
12847Ag = 59 ms (β- (100%), β-n)
12947Ag = 49.9 ms (β- (100%), β-n)
13047Ag = 40.6 ms (β- (100%), β-n)
13147Ag = 35 ms (β- (100%), β-n)
13247Ag = 30 ms (β- (100%), β-n)
9447Ag = 37 ms (β+ (100%))
94m47Ag = 550 ms (β+ (100%), β+p (20%))
94n47Ag = 400 ms (β+ (95.4%), β+p (27%), p (4.1%), 2p (0.5%))
9547Ag = 1.76 s (β+ (100%), β+p (2.5%))
9647Ag = 4.44 s (β+ (100%), β+p (6.9%))
96m47Ag = 6.9 s (β+ (100%), β+p (15.1%))
96n47Ag = 100 μs (internal transition (100%))
96p47Ag = 1.543 μs (internal transition (100%))
96q47Ag = 160 ns (internal transition (100%))
9747Ag = 25.5 s (β+ (100%))
9847Ag = 47.5 s (β+ (100%), β+p (0.0012%))
98m47Ag = 220 ns (internal transition (100%))
9947Ag = 2.07 min (β+ (100%))
99m47Ag = 9.5 s (internal transition (100%))

Vapour pressure (Torr):

0.000000001 (527°C)
0.00000001 (573°C)
0.0000001 (625°C)
0.000001 (684°C)
0.00001 (751°C)
0.0001 (828°C)
0.001 (918°C)
0.01 (1028°C)
0.1 (1163°C)
1 (1330°C)
10 (1543°C)
100 (1825°C)

Electrode potential:

Ag+ + e- → Ag, E = 0.7996 V (water, 25°C)
Ag2+ + e- → Ag+, E = 1.98 V (water, 25°C)

Viscosity (mPa·s):

2.98 (1200°C)

Surface tension (mN/m):

1140 (900°C)

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

0 (s)

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

0 (s)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

42.55 (s)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

25.4 (s)

Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

11.3

Enthalpy (heat) of vaporization ΔvapH (kJ/mol):

251.5

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

284.9 (g)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

172.9 (g)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

20.8 (g)

References:

  1. Гороновский И.Т., Назаренко Ю.П., Некряч Е.Ф. Краткий справочник по химии. - 5 изд. - Киев: Наукова думка, 1987. - pp. 38-39 [Russian]
  2. Гурвич Я.А. Справочник молодого аппаратчика-химика. - М.: Химия, 1991. - pp. 51 [Russian]
  3. Денисов В.М., Истомин С.А., Белоусова Н.В., Денисова Л.Т., Пастухов Э.А. Серебро и его сплавы. - Екатеринбург: УрО РАН, 2011 [Russian]
  4. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 244-245 [Russian]
  5. Неорганические синтезы. - Сб. 1. - М.: ИИЛ, 1951. - pp. 10 [Russian]
  6. Пятницкий И.В., Сухан В.В. Аналитическая химия серебра. - М.: Наука, 1975. - pp. 7-14 [Russian]
  7. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 98 [Russian]
  8. Реми Г. Курс неорганической химии. - Т.2. - М., 1966. - pp. 420-425 [Russian]
  9. Свойства элементов. - Ч. 2, под редакцией Самсонова Г.В. - М.: Металлургия, 1976. - pp. 46-49 [Russian]
  10. Свойства элементов. - под общей редакцией Дрица М.Е. - М.: Металлургия, 1985. - pp. 71-79 [Russian]
  11. Славинский М.П. Физико-химические свойства элементов. - М.: ГНТИЛЧЦМ, 1952. - pp. 95-113 [Russian]
  12. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 5, 592-593 [Russian]
  13. Справочник химика. - 2 изд., Т.1. - Л.-М.: Химия, 1966. - pp. 593, 596 [Russian]
  14. Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 323-324 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru