Borosilicate Glass Conical Filtering Flask with Integral Sidearm, 250 ml, 50 ml Graduations, Autoclavable

CH0420B
Borosilicate Glass Conical Filtering Flask with Integral Sidearm, 250 ml, 50 ml Graduations, Autoclavable

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  • 250 ml borosilicate conical filtering flask with integral sidearm
  • 50 ml graduations
  • Made from high quality 3.3 borosilicate glass
  • Thick wall construction
  • Low temperature gradient - can withstand high temperatures and thermal shocks*
  • Superior chemical durability*
  • Autoclavable at 121°C
*See specifications tab for temperature and chemical durability information
    Material 3.3 Borocilicate Glass
    Capacity 250 ml
    Graduations 50 ml
    Thermal Properties
    Coefficient of Linear Expansion 32.5 x 107 / °C
    Strain Point -515°C
    Annealing Point 565°C
    Softening Point 820°C
    Specific Heat 0.2
    Thermal Conductivity (Cal/cm3°C/Sec) 0.0027
    Chemical Durability
    Contact Chemical (mg/m2) Duration (hours) Loss in weight
    Water distilled at 100°C 6 10
    Water vapour steam at 121°C 1 75
    Acid HCl 6 100
    80% H2SO4 at 130°C 12 140
    Alkali -1N solution of Na2CO3 boiling 6 400
    Isotonic infusion Fluids
    NaCl (0.85%) at 121°C 2.5 70
    Glucose (5%) at 121°C 2.5 50