The LD series of cryogenic dewars is designed for storing and dispensing small amounts of liquid nitrogen in material science and biological cryo labs. The series includes a beaker style dewar with a wide mouth and pitcher style model for easy pouring.

Accessories

Roller Base	Liquid Withdrawal Device		Tipping Stand	Dipper	Liquid Phase Separator
Safe Handling of Liquid Nitrogen

Prod #	Description	Unit	Price	Order / Quote
Large Dewar Flasks:
81750-4	Cryo Dewar Flask, 4 liter	each	$564.00	Qty:
81750-5	Cryo Dewar Flask, 5 liter	each	566.50	Qty:
81750-10	Cryo Dewar Flask, 10 liters	each	654.50	Qty:
81750-25	Cryo Dewar Flask, 25 liters	each	903.10	Qty:
81750-25C	Cryo Dewar Flask, 25 liters, Classic Design	each	1,064.00	Qty:
81750-35	Cryo Dewar Flask, 35 liters	each	1,182.00	Qty:
81750-50	Cryo Dewar Flask, 50 liters	each	1,510.00	Qty:
Large Dewar Accessories:
81750-25-1	Roller Base for 25 liter Flask	each	238.70	Qty:
81750-25-2	Tipping Stand for 25 liters Flask	each	910.80	Qty:
81750-25-3	Dipper	each	93.50	Qty:
81750-25-4	Liquid Withdrawal Device	each	800.00	Qty:
81750-25-5	Liquid Phase Separator	each	81.00	Qty:

Pope Dewars are ideal for temporary storage of Liquid Nitrogen in laboratory settings. These Dewars are the lab standard in glass lined, fully silvered Dewars. They are readily available in a variety of standard shapes and numerous sizes. We have cylindrical, narrow-mouth, hemispherical, along with convenient low-form shallow styles. Extended base and handle versions are also available.

Low Form Shallow open top Dewars in Cylindrical and Hemispherical configurations are available in popular sizes to match standard flask sizes. Fully silvered glass Dewars are based with tip-offs off center for use with stirrers.

The traditional Lab Grade Dewar line encompasses a full range of sizes of fully silvered, glass double-walled evacuated flasks. The wide mouth cylindrical Dewar is available with a choice of either protective mesh or extended aluminum housing and also the popular narrow mouth spherical configuration. Lab Grade Dewars for benchtop use come with polyethylene lids.

Handled Lab Grade Dewar offers a complete Lab Grade Dewar at an affordable price. The most popular wide mouth cylindrical Dewars are manufactured with a full extended aluminum base, full exposed lip and attached handle to facilitate portability, safety and convenience.

Low Form Dewars

Pope Low Form Shallow Dewars permit essential operations not practical with standard cylindrical or spherical Dewars.

• Rapid freezing and recovery of tissue/organ specimens
• Insertion of small flasks in Dewar
• Agitation in flask with magnetic stirrer
• Tempering of stirring rods, pestles and other small objects

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.

Economies in coolant use will be realized in all operations where Pope Low Form Shallow Dewars are more practical. Cooling range from dry ice/acetone to liquid nitrogen. Pope Low Form Shallow Dewars are available in several sizes and two configurations, hemispherical and cylindrical (with semi-flat bottom). The cylindrical configuration increases coolant capacity. Holding time 2-6 hours depending on volume.

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. Holding time 2-6 hours depending on volume.

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.

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.

Aluminum metal housing extends full length of Dewar for added protection. The Dewar lip is extended to facilitate pouring. Polyethylene stopper, specially vented, minimizes evaporation. Holding time 2-6 hours depending on volume.

These dewars are ideal for temporary storage of liquid gas in laboratory settings. These flasks incorporate the convenience of a coated handle on the most popular wide mouth cylindrical models.

These Dewars are priced only slightly higher than the standard models and afford the increased portability, pouring efficiency and added protection. All the features in one complete Dewar!

Prod #	Description	Unit	Price	Order / Quote
81740-80	350ml Dewar, Full Base with Handle, Cylindrical, Wide Mouth	each	$156.45	Qty:
81740-85	1000ml Dewar, Full Base with Handle, Cylindrical, Wide Mouth	each	159.65	Qty:
81740-90	1900ml Dewar, Std. Base with Handle, Cylindrical, Wide Mouth	each	341.85	Qty: