A Product by Parr Instruments CompanyProduct QR Code
OverviewSpecificationsResources
This is the original acid digestion vessel introduced by Parr in 1969 to provide a PTFE lined metal vessel of simple design and minimum cost that can be used safely for routine sample preparation purposes. Its wide acceptance over the intervening years has proved it to be an excellent design for general digestion procedures in which temperatures and pressures are held below 150 °C and 1200 psig. It can be used occasionally above 150 °C, but at elevated temperatures it becomes increasingly difficult to maintain a tight seal. The 4746 High Pressure Acid Digestion Vessel has a safety rupture disc that will release through a passage in the bottom of the vessel. The nickel vessel does not have a blow-out passage since reactions with reducing acids are not potentially explosive.
Model Number4746
Size, mL23
Maximum Charge, grams
Inorganic Sample1.0
Organic Sample0.1
Recommended Maximum Temperature, °C275
Absolute Maximum Temperature, °C275
Absolute Maximum pressure, psig5000
Body MaterialStainless Steel
Cup SealTapered
Overpressure ProtectionRupture Disc
Closure StyleSpanner Wrench
Vessel Dimensions, cm
Overall Height12.57
Maximum O.D.8.41
Cup Dimensions, cm
Inside Diameter3.10
Inside Depth3.18
Vessel Weight, grams3700
Resources