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    1.   Ethers
      Alcohols
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      Pure pyridine

      Product name: pure pyridine gauge: 99.7% package shipment: 190 kg/barrel/water 

       

       

       

      Appearance and properties: colorless or light yellow liquid

      Melting point (℃) : 41.6

      Boiling point (℃) : 115.3

      Relative density (water = 1) : 0.9827

      The refractive index: 1.5067 (25 ℃)

      Relative vapor density (air = 1) : 2.73

      Saturated vapor pressure (kPa) : 1.33/13.2 ℃

      Flash point (℃) : 17

      Ignition temperature (℃) : 482

      Explosion limit % (V/V) : 12.4

      Lower explosive limit % (V/V) : 1.7

      Heat of combustion (constant pressure) (KJ/mol) : 2826.51 [1]

      (constant volume) (KJ/mol) : 2782.97 [1]

      The constant pressure heat capacity (21 ℃) (KJ/kg. K) : 1.64 [1]

      Critical temperature (℃) : 346.85 [1]

      Critical pressure (MPa) : 6.18 [1]

      Conductivity (25 ℃) (mu S/cm) : 4 [1]

      Thermal conductivity (20 ℃) (W/m.K) : 0.182 [1]

      Viscosity (15 ℃) (mPa) S) : 1.038 [1]

      (20℃)(mPa.S):0.952[1]

      (30℃)(mPa.S):0.829[1]

      Heat of evaporation (25 ℃) (KJ/mol) : 40.4277 [1]

      Heat of fusion (KJ/mol) : 7.4133 [1]

       
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