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Glassware Round flasks Round flasks

Round flasks

QUICKFIT round or flat neck balloons®

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• QUICKFIT to short neck balloons with round or flat bottom
• White transparent glass
• Conforms to ISO Standard 1773

Narrow neck balloon

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• Pyrex glass®
• ISO 1773 compliant

Narrow neck round flasks DURAN

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• Made from glass
• With flared rim
• Reinforced edge for round flasks with a neck diameter equal to or greater than 65 mm
• Comply with norm ISO 1773

Wide neck round flasks DURAN

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• Made from glass
• With flared rim
• Reinforced edge for round flasks with a neck diameter equal to or greater than 65 mm
• Comply with norm DIN EN ISO 24450

DURAN glass round flasks

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DURAN glass flat-bottom flasks

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Flat-bottom flasks with conical ground joint, according to DIN EN ISO 4797.

Pear-shaped balloons with conical ground joint

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• DURAN borosilicate glass® with marking area
• Conforms to DIN 12383 (ref. 67446, 674347 and 674348)

DURAN glass evaporating flasks® with conical ground joint

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• For rotary evaporators
• DURAN borosilicate glass® with marking area
• Pear shape with central neck and conical joint, spherical shape beyond 2000 ml

Powder evaporation flasks with conical ground joint

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• For rotary evaporators and powder drying
• DURAN borosilicate glass® with marking area
• Pear shape with central neck and conical joint

DURAN glass evaporating flasks® with conical ground joint

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• For rotary evaporators
• DURAN borosilicate glass® with marking area
• Pear shape with central neck and conical joint, spherical shape beyond 2000 ml

DURAN glass Kjeldahl balloons®

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• Standard RN collar
• For the determination of nitrogen

Receiving tanks for rotary evaporators

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• For distillation
• DURAN borosilicate glass® with marking area
• With centred KS 35/20 spherical cone seal

Kjeldahl balloons with ground neck

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• For the determination of nitrogen in organic compounds
• DURAN borosilicate glass® with marking area
• With central neck and conical seal