Description
Parr Instruments® Model 4748 Large Capacity Acid Digestion Vessels, 125 mL, Parr Instruments, 4748
Features:
- Model 4748 vessel is one of largest of all Parr acid digestion vessels
- 4748 has a 125 mL, removable PTFE cup in a stainless steel body with six cap screws in the screw cap to seal the flanged PTFE cup
- Expandable wave spring maintains continuous pressure on seal during cooling cycle when PTFE parts might otherwise relax and leak
- Stirring can be provided with magnetic stir bar
- Safety blow-off disc above PTFE cup will release pressure through an opening in vessel head if pressure should accidentally reach 3500 psi range
- For safe operation, pressures in these vessels should never exceed 1900 psi and temperatures must not exceed 250 °C
- Operations should be conducted well below these limits whenever possible due to potential destructive forces in large vessel charge
- It also is advisable to test any new procedures for safety in one of smaller vessels before scaling up to these sizes
- Wrench for cap screws is furnished with vessels—no other accessories required
Specifications
| Capacity | 125 mL |
|---|---|
| Manufacturer | Parr Instruments |
| Model No | 4748 |