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This 250ml Erlenmeyer Flask is made from high quality 3.3 borosilicate glass and features 50ml graduations. It is autoclavable at 121°C and has a low temperature gradient, allowing it to withstand high temperatures and thermal shocks. It has a narrow neck and superior chemical durability, making it compliant with DIN ISO 1773. It is the perfect flask for any lab.

 

  • 250 ml borosilicate flask
  • 50 ml graduations
  • Made from high quality 3.3 borosilicate glass
  • Low temperature gradient - can withstand high temperatures and thermal shocks*
  • Superior chemical durability*
  • Narrow Neck
  • Autoclavable at 121°C
  • Complies with DIN ISO 1773

*See specifications tab for temperature and chemical durability information

250ml Erlenmeyer Flask, 50ml Graduations, Narrow Neck, 3.3 Borosilicate Glass

SKU: CH0424F
£2.55Price
Out of Stock
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    Thermal Properties
    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
    Glucose (5%) at 121°C 2.5 50

     

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