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456M 6772 Calorimetric Thermometer Operating Instructions
493M 1109 / 1109A Operating Instructions
6700 Solution & Semimicro Calorimeters Sales Literature
A COMPACT BOMB CALORIMETER FOR MEASURING THE CALORIFIC VALUE OF SMALL COMBUSTIBLE SAMPLES
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.
A 22 mL OXYGEN BOMB
The 22 mL, 1109A Oxygen Bomb used in the semimicro calorimeter will handle samples ranging from 25 to 200 milligrams, liberating up to 1200 calories when burned in oxygen.
AN EFFECTIVE THERMAL JACKET
Effective static thermal insulation is provided by using a silvered glass Dewar as the calorimeter vessel. This vacuum flask holds the 1109A bomb in 450 grams of water. It is supported within a stainless steel air can from which it is easily removed for filling or cleaning.
FULL SERIES 6000 INSTRUMENTATION
The 6725 semimicro calorimeter utilizes the 6772 precision calorimeter thermometer/controller which provides all of the temperature measurement, automation and data handling capabilities of the larger series 6000 calorimeters described in the bulletin 6000MB (see link above).
1109A Semimicro Oxygen Bomb
This is a 22 mL bomb designed for use in the 6725 semimicro calorimeter and earlier series 1425 calorimeters. It is intended for samples ranging from 25 to 200 milligrams, liberating up to 1200 calories. It is also used for heat powders that are self oxidizing and release less than 2400 calories per charge.
SPECIFICATIONS
Model Number:
6725
Tests Per Hour:
3
Operation Pre-test Time:
10 minutes
Calorimeter Type:
Compensated
Bomb Type:
Removable(semimicro)
Balance Connection:
Yes
Bucket Type:
dewar flask
Temperature Resolution:
0.0001 °C
Maximum Sample Size:
1200 calories
Repeatability:
0.4 percent RSD
Special Bombs:
None
ORDERING GUIDE
| 6725EA | Semimicro Calorimeter with 1109A Oxygen Bomb 115V |
| 6725EF | Semimicro Calorimeter with 1109A Oxygen Bomb 230V |
Spare parts available:
| 1109A | Oxygen Bombs, 22 mL |
| 6009A | 500 Firings Kit for 1109A |
| 1824 | Oxygen Filling Connection |
| 208AC | Inconel Fuel Capsules |
| 45C10 | 10cm Fuse Wire Card |
| 3414 | Vial of 0.2 g, Benzoic Acid Pellets, 100 pcs |
The 6725 Parr Calorimeter replaced the 1425 Calorimeter as of July, 2004
Click here to go to 1425
Parr Calorimeters
Parr continues to offer the broadest range of oxygen bomb calorimetry available.Please ask for a copy of our Calorimeter Catalog - 6000MB.
Model 6400 Calorimeter. For laboratories that require high through-put and minimum operator time between tests.
Model 6300 Calorimeter. For laboratories that require high through-put and minimum operator time between tests.
Model 6200 Calorimeter. For general laboratory testing or those that require special oxygen bombs or who prefer removable bombs.
Model 6100 Calorimeter. For laboratories that can accept a reduced level of precision.
Model 1341 Plain Jacket Calorimeter. For student instruction and occasional testing.(Bulletin 1341MB)
Model 6725 Semimicro Calorimeter. For laboratories working with limited sample sizes.
Model 6755 Solution Calorimeter. For laboratories who wish to measure enthalpy changes produced by chemical reactions in solution. (Bulletin 6700MB)
Calorimeter, Model 6725, Semimicro
6725 Semimicro Calorimeter 
Today's Date: 09 September 2010
Parr Instrument Company
211 Fifty Third Street
Moline, Illinois 61265-9984
1-800-872-7720 / (309) 762-7716 FAX (309) 762-9453
Email: parr@parrinst.com