Dewar flasks for magnetic stirrer
Area of application
- laboratory technique
- medicinal technique
- Biotechnology
- for liquid or solid medias and solid matters
- Pressure-less space for coolants (LN2 oder CO2)
Features of performance
- reliably and economically
- Dewar flasks according to DIN 12492
- glass material according to ISO 3585
- nominal capacity from 80ml to 5,3 litres
- protective casing made of stucco aluminium
Description of complete flasks
Types and accessories
- CAL = protective casing out of stucco aluminium
Temperature ranges
- glass refill from -200°C to + 150°C, for a short time 200°C
- casing with mounting rubber and Latizell buffer from -10°C to + 60°C
Pressure range
- pressure - less
Description of glass Dewar flask
Material
- borosilicate glass 3.3 ISO 3585
Chemical characteristics
- hydrolytic resistance:
according to ISO 719 (98°C) - hydrolytic resistance:
according to ISO 720 (121°C) - acid resistance:
according to ISO 1776 - alkaline resistance:
according to ISO 695-A2
Physical characteristics
- linear expansion coefficient:
3,3 x 10-6 1/K (in between 20-300°C) - density:
2,23 g/cm3 - specific thermal capacity:
910 J/kg K - transformation temperature:
525°C
Vacuum
- > 5 x 10-6 mbar
Silvering
- fully silvered
Special types
- Dewar flask with loosely lied-on lid
- Dewar flasks with stainless steel casing
Safety advises and regulations
- always wear protective glasses and protective gloves
- national regulations for laboratories
- company- internal regulations
- safety regulations for handling with liquid gases
