Bismuth halide

Antimony can generate a variety of SbX 3 and SbX 5 compound with a halogen compound directly, but does not generate SbBr 5 and SbI 5. The following table shows the physical properties of the halogen compounds of hydrazine.

Physical properties of halogen compounds

nature

SbF 3

SbCl 3

SbBr 3

SbI 3

SbF 5

SbCl 5

Molecular weight

178.75

228.11

361.48

502.46

216.74

299.02

Form of existence

Oblique line

Oily liquid

colour

colorless

white

red

colorless

Density ∕ (g·cm -3 )

4.379

3.06

4.148

4.85

2.99

(21 ° C)

2.336 (20 ° C)

Melting point ∕°C

280±1

73.4

96.0±0.5

170.5

6

3.2±0.1

Boiling point ∕ °C

346±10

222.6

287

401

150

68 (1.82kPa)

-915.5

-382.2

-259

-100

-45.8±6.2

127

184

207

216±1

263±12

21.4

22.2 ± 0.2

38.2

55.5±0.14

(444 ° C)

102.8±1.3

(298°C)

46.72

(496°C)

53.2

(540 ° C)

43.45

(449°C)

175.8±2.5

(298°C)

93.3

(496°C)

94.9

(560 ° C)

95.44

(449°C)

108

96

144

106.6±0.4

The physicochemical properties of bismuth chloride are as follows:

SbCl 3 : It is a transparent oily liquid after melting. It is commercially known as “oyster oil” and is highly corrosive. It produces SbOCl fumes in humid air and is easily soluble in water. A small amount of water can make it a clear solution, which occurs when diluted. In the hydrolysis reaction, SbOCl or Sb 4 O 5 Cl 2 bismuth oxychloride is precipitated depending on the degree of dilution. The relationship between vapor pressure and temperature is as follows:

Temperature / ° C 50.3 99.7 149.8 199.3 223.5

Vapor pressure / Pa 146.65 2399.796 16038.64 59514.94 101324.72

SbCl 5 : Decomposes when boiling, releases chlorine gas and converts to SbCl 3 ; Conversely, if SbCl 5 is obtained by passing chlorine in SbCl 3 solution, it is soluble in hydrochloric acid and chloroform, and can react with inorganic and organic substances to form a series of complexes. Antimony pentachloride is a strong oxidant.

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