DURAN® Glass Stopper, clear, semi-hollow, ST 45/40

Standard taper ground joint octagonal flat head
  • Manufactured from borosilicate glass 3.3
  • All DURAN® glass components and therefore suitable for storage of aggressive materials
  • Tight closure due to Standard Taper ground joint
  • Octagonal shaped head
Product Overview
Semi-hollow or solid DURAN® glass stoppers can be used to close glassware items such as flasks, separatory funnels or reagent bottles with ground joint necks. The Standard Taper ground glass joint forms a tight, leak-proof seal. Use grease for heating or vacuum applications. With octagonal shaped head. Note on using DURAN® glass stoppers with soda-lime glass bottles: If the bottle and the stopper have a temperature difference greater than 30 °C, the glass stoppers can become stuck! Clear DURAN® glass ground stopper.

Specifications

Specifications
Nominal Size (NS) 45/40
Material BORO 3.3
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
Autoclavable No
Quantity 1
Product Overview
Semi-hollow or solid DURAN® glass stoppers can be used to close glassware items such as flasks, separatory funnels or reagent bottles with ground joint necks. The Standard Taper ground glass joint forms a tight, leak-proof seal. Use grease for heating or vacuum applications. With octagonal shaped head. Note on using DURAN® glass stoppers with soda-lime glass bottles: If the bottle and the stopper have a temperature difference greater than 30 °C, the glass stoppers can become stuck! Clear DURAN® glass ground stopper.

Specifications

Specifications
Nominal Size (NS) 45/40
Material BORO 3.3
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
Autoclavable No
Quantity 1

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