| Description | Grade Max Impurities (Liquid Phase) |
99.5% (N2.5) (Mol. PPM) |
99.9% (N3.0) (Mol. PPM) |
99.95% (N3.5) (Mol. PPM) |
99.99% (N4.0) (Mol. PPM) |
|---|---|---|---|---|---|
| Isobutane is the simplest member of the isoalkane series of hydrocarbons. It is a colourless, easily liquefied flammable gas. |
Nitrogen | < 400 | < 160 | < 20 | < 20 |
| Oxygen | < 100 | < 40 | < 5 | < 5 | |
| Propane | < 1000 | < 500 | < 300 | < 50 | |
| n-Butane | < 3000 | < 300 | < 200 | < 30 | |
| Moisture | < 10 | < 5 | < 5 | < 3 | |
| Sulphur | <1 | < 1 | < 1 | < 1 | |
| Lower purities available for refrigeration applications – Please Contact us. | |||||
| Cylinder Size | Volume (Kg) | Cylinder Data | |
|---|---|---|---|
| B10st | 4.9 | Supplied as a liquefied gas under its own vapour pressure in steel or aluminium cylinders.
Standard sizes / Volumes as listed – |
|
| B45Ist | 21.1 | ||
| B50st | 24.5 | ||
| B110Ist | 52.9 | ||
| B450Ist | 220.5 |
| Phoenix Gases can supply any internationally recognised valve type. For Isobutane the standard international valve types are as follows | |
|---|---|
| American | CGA 510 |
| British | BS 341 – 4 |
| European | DIN 477 – 1 |
| Gas Data | |
|---|---|
| Atomic Weight | 58.124 |
| Boiling Point | -11.7°C |
| Density | 2.487 g/cm3 |
| Vapour Pressure | 2.62 bar |
| Recommended Regulator |
|---|
| Single stage brass or stainless steel body with stainless steel internals.
Phoenix Gases has a variety of suitable handling equipment for this product – please enquire. |
| Typical Applications |
|---|
| Calibration of instruments such as temperature and pressure gauges. Also used in the manufacture of aviation fuel. |