DURAN® Filter Funnel, 500 mL, Porosity 1

  • Manufactured from 3.3. expansion borosilicate glass
  • Funnels have an integral sintered glass filtration disc
  • Comprehensive range of funnel sizes and sinter porosities (grades) are available
  • The use of filter paper is not required
  • Resistant to most corrosive reagents including ammonia and concentrated sulphuric acid
  • Filter funnels can be used with a filtering flask via a conical rubber seal (GUKO)
  • Fired-on, highly durable white print
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Product Overview
One of the most important separation methods in the laboratory environment is filtration, which is used to separate or clean different media. For this working method, filters are required which are selected according to the application with regard to size and porosity. Büchner funnels are cylindrical with an integral sintered disc. Without additional filter paper, only coarse filtration is possible. Büchner funnels can also be used in vacuum filtration. The applied vacuum accelerates the filtration.

Specifications

Specifications
Diameter d (mm) 107
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.
h (mm) 240
d1 (OD) (mm) 22
Capacity (mL) 500
Diameter (mm) 107
Disc Diameter (mm) 95
Porosity 1
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) 240
Autoclavable Yes
Quantity 1
Product Overview
One of the most important separation methods in the laboratory environment is filtration, which is used to separate or clean different media. For this working method, filters are required which are selected according to the application with regard to size and porosity. Büchner funnels are cylindrical with an integral sintered disc. Without additional filter paper, only coarse filtration is possible. Büchner funnels can also be used in vacuum filtration. The applied vacuum accelerates the filtration.

Specifications

Specifications
Diameter d (mm) 107
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.
h (mm) 240
d1 (OD) (mm) 22
Capacity (mL) 500
Diameter (mm) 107
Disc Diameter (mm) 95
Porosity 1
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) 240
Autoclavable Yes
Quantity 1