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Funnel Separating - Squibb, cap. 250ml, socket size 19/26, borosilicate glass, with interchangeable plastic stopper and PTFE key stopcock, Gradauted

SKU CH0479C-GR/PK2

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  • Description
  • 3.3 Boro Glass Specs
  • Glassware Sell Sheet
  • 250 ml Squibb separatory funnel with PTFE key stopcock
  • Graduated and non-graduated versions available
  • Made from high quality 3.3 borosilicate glass
  • Includes interchangeable polypropylene stopper
  • Stopper is chemical and acid resistant
  • 19/26 socket size
  • 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

    Thermal Properties

    Property Value
    Coefficient of Linear Expansion 32.5 x 10-7 / °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 Duration (hours) Loss in weight (mg/m²)
    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 4000
    Isotonic infusion Fluids - NaCl (0.85%) at 121°C 2.5 70
    Isotonic infusion Fluids - Glucose (5%) at 121°C 2.5 50