Cryostat accessory for autosorb iQ.
For cost-effective argon sorption analyses at 87.3 K
The CryoSync accessory enables autosorb iQ analyzers to generate precise isothermal sorption measurements at liquid argon (87.3 K) and other temperatures while using less expensive liquid nitrogen (77 K) as the cryogen. With this accessory, autosorb iQ can generate isotherms at a virtually constant temperature (±0.005 K) within a wide temperature range (82 K to 115 K) regardless of changing atmospheric pressure and liquid nitrogen quality for up to 50 hours without a refill.
A convenient alternative to using liquid argon or expensive cryostats for IUPAC- recommended gas sorption analyses
It is now well established (see the latest IUPAC recommendations in Pure. Appl. Chem. 87 (2015) 1051)) that argon molecules provide distinct advantages over nitrogen molecules for gas sorption analyses, including the following:
• Unlike nitrogen, argon has no quadrupole moment. Thus, using argon as adsorbate eliminates specific chemical interactions with polar/ionic surface sites;
• As a result, argon physisorption isotherms provide much more reliable fingerprints of the interactions modeled by today’s most advanced techniques (e.g., QSDFT) for pore size characterization; and
• Argon sorption analyses at its boiling point (87K) can be significantly faster than conventional N2/77K experiments, because the filling of similar pores can occur much more readily at much higher relative pressures;
There has been a long-felt need in the art for the means to enable Ar/87K experiments without having to resort to using compressor-based cryostats (which can be very expensive) or liquid argon cryogen (which can also be relatively expensive or even unavailable in some regions). The CryoSync fills this need by providing a compact accessory which is easily adaptable to modern gas sorption analyzers. With the CryoSync users can easily perform IUPAC-recommended argon sorption analyses at 87.3K using liquid nitrogen (instead of liquid argon) as the cryogen.
| Model | CryoSync |
| Temperature range: | 82 K to 115 K nominal with liquid N 2 |
| Temperature stability: | Better than ±0.005 K (s.d.) |
| Sample cells: | One per Cryocooler accessory |
| Analysis duration: | Over 50 hours at 87.3 K without refilling Dewar |
| Dimensions | Height: 280 mm (11 inches) |
| (exluding Dewar and cap): | Width: 55 mm (2.5 inches) |
| | Depth: 55 mm (2.5 inches) |
| | Weight: 0.7 kg (1.5 pounds) |
| Controller | Height: 170 mm (7 inches) |
| | Width: 95 mm (3.5 inches) |
| | Depth: 100 mm (4 inches) |
| | Weight: 0.9 kg (2 pounds) |
| Electrical: | 100 V to 240 V |
| | 50 Hz to 60 Hz |
| | Max. 30 W |
| | Grounded, single-phase supply |
| Ambient: | 15 °C to 35 °C operating range |
| | 20 % to 90 % relative humidity |
| |
Brochure_ParticleCharacterization.pdf
To get information about: «CryoSync» contact us by phone (044) 229 15 31 or fill in the form.