The University of Chicago Stable Isotope Ratio facility
| Tank Gases (FYI only) | ||
| Disclaimer: Prices listed are estimates only, and may change at any time. Tank rental and possibly other charges may apply. Please see contact informtion (not us) for current pricing and ordering. These links are not listed in any particular order, and we are not endorsing any of the companies listed, nor do we have a favorite gas. | ||
| for current pricing and ordering, contact: order-gas <at> uchicago.edu | ||
| gas (with Airgas product number) | pricing, March 2013 | grade |
| tank rental | $0.30/day (ca. $9/month) | |
| Helium | ||
| HE UHP300 | 115.72 | 99.999% |
| HE BIP300 | 214.50 | 99.9999% |
| Nitrogen | ||
| NI UHP300 | 80.50 | 99.999% |
| NI BIP300 | 148.70 | 99.9999% |
| Argon | ||
| AR 300 | 60.48 | |
| AR HP200 | 60.80 | 99.999% |
| AR BIP300 | 235.00 | 99.9999% |
| Oxygen | ||
| OX ED300 | 56.56 | |
| OX Z300 | 226.40 | 99.8% |
| OX UHP200 | 209.26 | 99.994% |
| Air | ||
| AI 300 | 43.16 | |
| AI Z300 | 81.82 | <1ppm THC |
| AI D300 | 63.32 | <7ppm water |
| AI UZ300 | 91.84 | <1ppm CO+CO2 |
| Hydrogen | ||
| HY UHP300 | 66.38 | 99.999% |
| Carbon Dioxide | ||
| CD R200 | 583.38 | 99.999% |
| CD PC200S | 122.50 | 99.995% siphon |
| CD BD300 | 34.97 | 9.9% |
| Liquid Nitrogen | ||
| refills (own dewar) | 0.57/L (180L tank = $102.60) | |
| dewar rental | 1.25/day (ca. 37.50/month) | |
| NI 230LT22 | 144.90 | |
| This is only a small selection; other gases, grades and sizes available | ||