DURAN® Evaporating Flask, 250 mL

  • Manufactured from 3.3 expansion borosilicate glass
  • The florentine pear shape gives these flasks a large liquid surface area allowing more rapid evaporation
  • Ideal for use with rotary evaporators
  • Tight closure due to standard ground joint
  • Fired-on, highly durable white print
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Product Overview
Evaporating flasks are a variant of round flasks and have a florentine pear shape. The standard ground joint allows a precise connection to other ground joint components and they are ideal for use with rotary evaporators. Due to their shape, evaporating flasks allow a large uniform liquid surface area, making them particularly suitable for the rapid evaporation of solvents.

Specifications

Specifications
Boro 3.3 Borosilicate glass 3.3 has a very good chemical resistance, virtual inert behavior, a high maximum usage temperature, high light transparency and minimal thermal expansion. Borosilicate glass 3.3 has a linear coefficient of expansion of 3.3 × 10−6 K−1 at 20 °C. It also conforms to the requirements of a USP/EP/JP Type 1 neutral glass suitable for use by the pharmaceutical industry. The properties of DURAN® are specified to ISO 3585 and ASTM-E438 Type 1 Class A.
Diameter d (mm) 81
h (mm) 140
Capacity (mL) 250
Diameter (mm) 81
Nominal Size (NS) 29/32
Marking Area The marking area is a printed ceramic area on laboratory glassware for marking / identification using a wax pencil. Also called marking field, white marking spot or marking square.
Material BORO 3.3
Height (mm) 140
Autoclavable Yes
Quantity 10
Product Overview
Evaporating flasks are a variant of round flasks and have a florentine pear shape. The standard ground joint allows a precise connection to other ground joint components and they are ideal for use with rotary evaporators. Due to their shape, evaporating flasks allow a large uniform liquid surface area, making them particularly suitable for the rapid evaporation of solvents.

Specifications

Specifications
Boro 3.3 Borosilicate glass 3.3 has a very good chemical resistance, virtual inert behavior, a high maximum usage temperature, high light transparency and minimal thermal expansion. Borosilicate glass 3.3 has a linear coefficient of expansion of 3.3 × 10−6 K−1 at 20 °C. It also conforms to the requirements of a USP/EP/JP Type 1 neutral glass suitable for use by the pharmaceutical industry. The properties of DURAN® are specified to ISO 3585 and ASTM-E438 Type 1 Class A.
Diameter d (mm) 81
h (mm) 140
Capacity (mL) 250
Diameter (mm) 81
Nominal Size (NS) 29/32
Marking Area The marking area is a printed ceramic area on laboratory glassware for marking / identification using a wax pencil. Also called marking field, white marking spot or marking square.
Material BORO 3.3
Height (mm) 140
Autoclavable Yes
Quantity 10