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Parr Instruments

Ordinary oxygen bomb combustion calorimetry is used to measure the heat of combustion or reaction of materials in oxygen or inert atmospheres. Even for high strength vessels, such as the Parr 1104 Oxygen Combustion Bomb, the conditions necessary to detonate small amounts of highly reactive materials are often difficult to achieve and can result in unpredictable consequences. For example, the conventional heat of combustion of pentaerythritol tetranitrate (PETN) [C5H8N4O12] in oxygen is 1957 cal/g while the heat of detonation in vacuum is 1490 cal/g (a 24% difference). Additionally, it is well known that the degree of confinement of explosive materials significantly influences the released energy. For unconfined or lightly confined charges, the released energy is largely retained in the products. When the charge is heavily confined, the detonation energy, for the most part, is converted to kinetic and internal energy of the confining case. For example, the conventional heat of combustion of 2,4,6-trinitrotoluene (TNT) in oxygen is 3590 cal/g. The heat of detonation for TNT at a charge density of 1.53 g/cc is 1093 cal/g and at a charge density of 0.998 g/cc is 870 cal/g. In contrast, an unconfined reaction yields approximately 600 cal/g.
91 Listings found for Parr Instruments
Parr 1455 Solution Calorimeter Parr Instruments Solution calorimeter Parr Calorimeter 1455 used looks nice Parr Instruments M
Used
Parr 1455 Solution Calorimeter Parr Instruments Solution calorimeter Parr Calorimeter 1455 used looks nice Parr Instruments M
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Parr Instruments 1019HC T304 022807 High Pressure
New
Parr Instruments 1019HC T304 022807 High Pressure
$300.00 USD
PARR INSTRUMENT COMPANY 500 ML REACTOR SPLIT RING PRESSURE REACTOR PARR INSTRUMENT COMPANY MOLINE I
Not Specified
PARR INSTRUMENT COMPANY 500 ML REACTOR SPLIT RING PRESSURE REACTOR PARR INSTRUMENT COMPANY MOLINE I
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Parr Instrument Company 4878 Automated Liquid Sampler
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Parr Instrument Company 4878 Automated Liquid Sampler
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Parr Instrument Company 6050 Compensated Jacket Calorimeter
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Parr Instrument Company 6050 Compensated Jacket Calorimeter
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Parr Instrument Company 6772 Calorimetric Thermometer
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Parr Instrument Company 6772 Calorimetric Thermometer
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Parr Instrument Company Series 4625 High Pressure Vessels, 600 & 1200 mL
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Parr Instrument Company Series 4625 High Pressure Vessels, 600 & 1200 mL
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Parr Instrument Company 6790 Detonation Calorimeter
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Parr Instrument Company 6790 Detonation Calorimeter
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Parr Instrument Company 6755 Solution Calorimeter
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Parr Instrument Company 6755 Solution Calorimeter
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Parr Instrument Company 6725 Semimicro Calorimeter
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Parr Instrument Company 6725 Semimicro Calorimeter
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Parr Instrument Company 6100 Compensated Jacket Calorimeter
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Parr Instrument Company 6100 Compensated Jacket Calorimeter
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Parr Instrument Company 6200 Isoperibol Calorimeter
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Parr Instrument Company 6200 Isoperibol Calorimeter
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Supercritical Fluids from Parr Instrument Company
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Supercritical Fluids from Parr Instrument Company
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Parr Instrument Company Disbonding Apparatus for ASTM G146
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Parr Instrument Company Disbonding Apparatus for ASTM G146
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Parr Instrument 5410 Company Fluidized Bed Reactors
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Parr Instrument 5410 Company Fluidized Bed Reactors
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Parr Instrument Company 6400 Automatic Isoperibol Calorimeter
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Parr Instrument Company 6400 Automatic Isoperibol Calorimeter
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Parr Instrument Company- Horizontal Reactors
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Parr Instrument Company- Horizontal Reactors
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Parr Instrument Company- Series 2500 Micro Batch System
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Parr Instrument Company- Series 2500 Micro Batch System
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Parr Instrument Company- Series 5100 Glass Reactors, 160-1500 mL
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Parr Instrument Company- Series 5100 Glass Reactors, 160-1500 mL
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Parr Instrument Company- Series 4560 Mini Reactors, 100-600 mL
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Parr Instrument Company- Series 4560 Mini Reactors, 100-600 mL
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Parr Instrument Company- Series 4590 Micro Stirred Reactors
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Parr Instrument Company- Series 4590 Micro Stirred Reactors
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Parr Instrument Company- Series 4530 Floor Stand Reactors
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Parr Instrument Company- Series 4530 Floor Stand Reactors
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Parr Instrument Company- 5400 Continuous Flow Tubular Reactors
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Parr Instrument Company- 5400 Continuous Flow Tubular Reactors
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Parr Instrument Company- Series 5500 HP Compact Reactors
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Parr Instrument Company- Series 5500 HP Compact Reactors
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Parr Instrument Company- Series 4550 Floor Stand Reactors
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Parr Instrument Company- Series 4550 Floor Stand Reactors
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