CoolRack 250ml

• CoolRack thermo-conductive tube modules eliminate variability which originates from tubes placed directly into ice, dry ice, alcohol baths, water baths and other temperature sources
• CoolRack modules ensure +/- 0.1°C temperature uniformity across all tubes when cooling, snap freezing, heating or thawing
• Suggested applications include cooling reagents such as restriction enzymes, dNTPs and antibodies, alcohol-free dry ice snap freezing of tissue, virus and bacteria samples and bench top cryogenic tube sorting in liquid nitrogen
• All CoolRack modules may be autoclaved, high heat sterilized or decontaminated with bleach, alcohol or other disinfectants or lab detergents

• Removes all problems created by placing sample directly in ice: variable sample temperature, wet labels, contamination risk
• All samples <4°C and uniform in temperature (+/- 0.1°C)
• Samples organized, secure and dry
• All tubes upright and indexed
• Thermo-conductive base, insulating exterior

Regardless of temperatures source

• Samples stand upright and organized
• Reproducible method

On ice

• Adapts from ambient (25˚C) to <4˚C in 60-90 seconds*
• Samples and labels stay dry
• Hours of ice cooling without direct ice contact

On dry ice

• Adapts from ambient (25˚C) to -78˚C in approximately 5-7 minutes*
• Eliminates ethanol from snap freezing
• Equal or better freezing rate as compared to direct immersion into dry ice or alcohol slurry

In liquid nitrogen

• Adapts from ambient (25˚C) to approximately -150˚C in approximately 12-14 minutes*
• Vapor barrier protects from ambient air
• No direct contact between samples and LN2

Heat sources

• Use with water baths, hot plates, incubators and other heat sources to keep samples warm

^{*Average cooling rate from room temperature}

• CoolRack on ice: heat from the relatively warmer CoolRack module is transferred to cooling source (wet or dry ice, cartridge, LN2) until equilibrium is reached
• CoolRack in water bath: heat is transferred from water bath toward relatively cooler CoolRack until equilibrium is reached

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