Pope Lab Grade Dewars are rated the most efficient glass Dewars in the World! Designed for use with Liquid Nitrogen, this superior ranking is due to rigid quality controls in manufacture and a number of outstanding design and manufacturing features.

• Efficiency assured by rigid bakeout and evacuation control (evacuated to 10-5 torr or better).
• Evacuation tip completely shielded for increased protection.
• Weighted bases on all models for stability
• Optional full length metal housing on most models for added protection
• No pads between walls on cylindrical Dewars eliminating this heat transfer potential
• Supplied stopper tops off Dewars to minimize evaporation


The protective aluminum bases on both styles extend the full height of the Dewars. Note that protected vacuum tip-off tubulations are offset to the side to minimize space between the Dewar bottoms and magnetic stirrers. The hemispherical line has been expanded to provide additional Dewars to fit larger flask sizes.
 
  PART# Dewar Description Type Model Protective
Covering		 ID
mm 		Inside Depth
mm 		OD
mm 		Total Height
mm 		Flask
ml 		Stopper
A 8600 350ml Standard Base Cylindrical, Wide Mouth Lab Grade Mesh 70 125 86 157 – 8845
B 86000099 350ml Full Base Cylindrical, Wide Mouth Lab Grade Full Aluminum 70 125 86 157 – 8845
C 8621 1900ml Standard Base Cylindrical, Wide Mouth Lab Grade Mesh 120 190 150 252 – 8821
D 86210099 1900ml Full Base Cylindrical, Wide Mouth Lab Grade Full Aluminum 120 190 150 252 – 8821
E 8645 1000ml Standard Base Cylindrical, Wide Mouth Lab Grade Mesh 70 302 86 337 – 8845
F 86450099 1000ml Full Base Cylindrical, Wide Mouth Lab Grade Aluminum 70 302 86 337 – 8845
G 8642 4300 ml Standard Base Cylindrical, Wide Mouth Lab Grade Mesh 143 305 178 365 – 8842
H 86420099 4300ml Full Base Cylindrical, Wide Mouth Lab Grade Full Aluminum 143 305 178 365 – 8842
I 8640 665ml Standard Base Cylindrical, Wide Mouth Lab Grade Mesh 70 195 86 241 – 8845
J 86400099 665ml Full Base Cylindrical, Wide Mouth Lab Grade Full Aluminum 70 195 86 241 – 8845
K 8697 2000ml Standard Base Spherical, Narrow Neck 32 ID - 64 OD Lab Grade Aluminum 158 335 184 386 – Cork
L 8698 5000ml Standard Base Spherical, Narrow Neck 53 ID - 79 OD Lab Grade Aluminum 216 370 255 456 – Cork
 


Part #'s 8600, 8621, 8640,
8642, 8645

Part #'s 8600-0099, 8621-0099, 8640-0099,
8642-0099, 8645-0099

Part #'s 8697,8698
 


STANDARD WIDE MOUTH CYLINDRICAL DEWARS
These Dewars exemplify the emphasis placed on both efficiency and safety by Pope Scientific.
All Pope Lab Grade Dewars are manufactured of borosilicate glass for liquid nitrogen service.
A sturdy mesh cover facilitates a firm grip, provides a cushion against bumping and increases protection.

FULL LENGTH ALUMINUM HOUSING CYLINDRICAL DEWARS
All Wide Mouth models can be obtained with an exterior metal housing that extends nearly to the top rim
of the Dewar (a slight extension of the glass Dewar facilitates pouring). This housing adds the safety of
metal to the efficiency of glass, particularly important in handling operations.

NARROW MOUTH DEWARS
Lab Grade Dewars with a narrow mouth are ideal for temporary storage or for room-to-room transfer
(Not for DOT/Vehicle transfer). Standard features include low evaporation cork stopper, fully shielded
evacuation tip, weighted bases and partial aluminum base.