In vacuum applications, a cold trap is a device that condenses all vapors except the permanent gases into a liquid or solid. The most common objective is to prevent vapors being evacuated from an experiment from entering a vacuum pump where they would condense and contaminate it. Particularly large cold traps are necessary when removing large amounts of liquid as in freeze drying.
Pumps that use oil either as their working fluid (diffusion pumps), or as their lubricant (mechanical rotary pumps), are often the sources of contamination in vacuum systems. Placing a cold trap at the mouth of such a pump greatly lowers the risk that oil vapors will back stream into the vacuum cavity.
Care should be taken when using a cold trap not to condense liquid oxygen (a light blue liquid) into the cold trap. Liquid oxygen is potentially explosive, and this is especially true if the trap has been used to trap solvent. Liquid oxygen can be condensed into a cold trap if a pump has sucked air through the trap when the trap is very cold.
Features:
- Utilizes dry ice for optimal efficiency
- Comes with scissor jack for easy collection flask removal
- Easy to clean all glass construction
- Small footprint
- Setup in a few minutes
- Free six feet 3/8” white premium food grade silicone vacuum tubing (a $40 value) included
Delivery Information
Standard Delivery
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- 3-4 business days for Sydney and Melbourne Metro Deliveries
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- 3-7 business days for other metro cities and regional areas
- - WA, NT, and TAS regional areas can take longer delivery time
- We use Toll, TNT, Aramex, Sendle and Australia Post eParcel service with signature as standard service bsed on weight and location.
Express Delivery
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1-2 business days for Metro areas
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2-3 business days for Regional and Remote areas
- WA, NT, and TAS regional areas can take longer delivery time
Express Service is offered with an additional charge which varies depending upon product and delivery postcode. Please select individual listing for correct shipping charges and options.
We use Australia Post, CourierPlease, TNT, and Toll Priority as our express delivery partners.
Express Delivery does not cover entire TAS, NT, WA, and PO BOX addresses.
