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Middlesex Gases is now making dry ice in-house. To request a quote or to learn more about the delivery options, visit our dry ice page. Click here. |
| Chemical Symbol | N2 |
| Molecular Weight | 28.01 |
| Specific Volume | 13.8ft3/ lb (0.86m3/ kg) |
| CAS Registry Number | 7727-37-9 |
| DOT Proper Name | Nitrogen, Compressed |
| Hazard Class | 2.2 |
| ID Number | UN1066 |
| Labels | Nonflammable Gas |
| Std. Cylinder Sizes* | Contents | Cylinder Pressure (PSIG) | CGA Valve Connection |
|---|---|---|---|
| 300 | 304 | 2640 | 580 |
| 200 | 230 | 2200 | 580 |
| 80 | 84 | 2200 | 580 |
| 30(AL) | 38 | 2200 | 580 |
SPECIFICATIONS SUBJECT TO CHANGE
| Grade | Purity | Impurity | Specifications | Equipment Recommended |
|---|---|---|---|---|
| Ultra High Purity 5.0 | 99.999% | Oxygen Moisture Total Hydrocarbons | <1ppm < 1ppm <0.5ppm | Call for Recommendation |
| High Purity 4.8 | 99.998% | Oxygen Moisture Total Hydrocarbons | <5ppm <3ppm <1ppm | Call for Recommendation |
| Low O2 | 99.999% | Oxygen Moisture Total Hydrocarbons | <0.5ppm <1ppm <0.5ppm | Call for Recommendation |
| Zero 0.2 | 99.998% | Total Hydrocarbons | <0.2ppm | Call for Recommendation |
| Prepurified Grade K | 99.995% | Oxygen Dewpoint | ≤ 10ppm ≤-76°F | Call for Recommendation |