Oxygen bomb calorimeters measure the heat of chemical reactions or physical changes. This is done by performing the reaction in a container that maintains constant volume and they are thus designed to withstand the pressure that builds up as the reaction occurs. In an oxygen bomb calorimeter, the sample is loaded in the reaction chamber (called the bomb) along with oxygen; this is submerged in water within an insulating container. Once the sample is ignited, a thermometer which is partially submerged in the water, records the temperature changes that occur. Level of precision, capacity, and price are important considerations when purchasing a bomb calorimeter.
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| Company | Parr Instrument Company | Parr Instrument Company | Parr Instrument Company | Parr Instrument Company | Parr Instrument Company |
| Item | Compensated Jacket Calorimeter | Automatic Isoperibol Calorimeter | Detonation Calorimeter | Isoperibol Calorimeter | Semimicro Calorimeter |
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| Reviews | | | | | |
| Catalog Number | 6050 | 6400 | 6790 | 6200 | 6725 |
| Price | | | | | |
| Description | The Model 6050 Compensated Jacket Calorimeter is the first calorimeter designed by Parr to be controlled by your own personal computer. The 6050 Calorimeter is a compact, static jacket calorimeter that operates at room temperature.
The 6050 Calorimeter has been designed to provide the user with: The Model 6050 Compensated Jacket Calorimeter is the first calorimeter designed by Parr to be controlled by your own personal computer. The 6050 Calorimeter is a compact, static jacket calorimeter that operates at room temperature.
The 6050 Calorimeter has been designed to provide the user with: - A traditional design calorimeter with removable oxygen bomb and bucket.
- A moderately priced calorimeter which uses real time temperature measurements to determine heat leaks without using a controlled calorimeter jacket.
- A full featured calorimeter that does not require circulating water.
- A compact calorimeter requiring minimum laboratory bench space.
- Modern USB connection to PC.
The Parr 6050 Calorimeter takes advantage of the real time, continuously corrected method developed by Parr. The temperature of the jacket is continuously monitored and real time heat leak corrections are applied based upon the temperature difference between the bucket and the actual temperature of the jacket.... Read More | The 6400 Automatic Isoperibol Calorimeter represents the next evolutionary step in the Parr automated calorimeters. Inclusive and compact, the instrument incorporates a closed loop cooling subsystem into the calorimeter. This subsystem uses a thermoelectric cooler assembly attached directly to a oneThe 6400 Automatic Isoperibol Calorimeter represents the next evolutionary step in the Parr automated calorimeters. Inclusive and compact, the instrument incorporates a closed loop cooling subsystem into the calorimeter. This subsystem uses a thermoelectric cooler assembly attached directly to a one liter water tank which supplies cooling water to the calorimeter. An external nitrogen pressurized tank is used to supply rinse water to the calorimeter. This model features the fixed bomb and bucket design allowing for automated bucket and jacket fill as well as automated vessel fill and rinse. The 6400 requires one minute of operator time per test, allowing a technician to operate up to four calorimeters simultaneously.
Features - Parr Fixed Bomb and Bucket Technology
- Oxygen Charging and Release
- Fixed Bucket
- Fixed Bomb
- 1138 Oxygen Combustion Bomb
... Read More | 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 materialsOrdinary 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).... Read More | Model 6200 is a microprocessor controlled, isoperibol oxygen bomb calorimeter which is widely used for both routine and occasional calorific tests. It uses the time-tested Parr 1108 style oxygen bomb and oval bucket in a compact calorimeter, producing reliable results with good repeatability, but Model 6200 is a microprocessor controlled, isoperibol oxygen bomb calorimeter which is widely used for both routine and occasional calorific tests. It uses the time-tested Parr 1108 style oxygen bomb and oval bucket in a compact calorimeter, producing reliable results with good repeatability, but differing from the 6400 Model in that the bomb and bucket both must be removed from the calorimeter and refilled manually for each test, thereby requiring more of the operator’s time than the automatic and semi-automatic models.
Features - A temperature-controlled water jacket with a built-in circulating system and an electric heater.
- An 1108P oxygen bomb with an oval bucket which fits into the insulating water jacket.
- A built-in semi-automatic system for charging the bomb with oxygen.
- A high precision electronic thermometer.
- A bright, color, touch screen display for data entry and operation control.
- Special communication ports for printer, computer and network (LAN) connections.
- SD memory card slots for simple program updates and test report archiving.
... Read More | The 6725 Semimicro Calorimeter is a compact and easily operated, static jacket, combustion calorimeter designed specifically for measuring the heat of combustion of small samples when only limited amounts of test material are available.
The need for semimicro operation frequently arises in marine The 6725 Semimicro Calorimeter is a compact and easily operated, static jacket, combustion calorimeter designed specifically for measuring the heat of combustion of small samples when only limited amounts of test material are available.
The need for semimicro operation frequently arises in marine biology and other ecological studies where sample sizes are limited, also for testing heat powders and pyrotechnic mixtures.... Read More |
| Method | Oxygen bomb combustion calorimetry | Isoperibol oxygen bomb calorimetry | Oxygen bomb combustion calorimetry | Isoperibol oxygen bomb calorimetry | Oxygen bomb combustion calorimetry |
| Temperature Resolution | 0.0001°C | 0.0001C | 0.0001C | 0.0001C | Inquire |
| Measuring Time | 4 to 6 tests per hour | 7 tests per hour | 1 test per hour | 4 to 7 tests per hour | 2 to 3 tests per hour |
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