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Applications of Reaction Calorimetry HFC & HBC
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Applications
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FAQ's Calo 2000 - CLIENT asks, SYSTAG answers
(APP) (from the year 2000) |
Q&A Calo 2000
File size 628 kB
8 pages, A4 English
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Abstract
Calo 2000 most frequently asked questions
Many aspects are covered from Pharmaceutical Development, Engineering Requirements to Water Equivalent Value and comparison with other instrument manufacturers.
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> Top Reaction Calorimetry
Reaction Calorimetry: Criterion "Base-Line" for the Evaluation
(APP) (from the year 2000) |
Calo 2000 "Base Line"
File size 562 kB
20 pages, A4 English
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Abstract
The Calo 2000 no longer employs an actual Base Line, it operates by using an “Auto-Zero” system. This “Auto-Zero Line” is of particular importance when operating in non-isothermal mode. This function and its control are explained in detail using examples of several of Calo 2000 instruments.
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> Top Reaction Calorimetry
Practical Hints for Successful Operation
(APP) (from the year 2005) |
Practical Advice
File size 6'571 kB
48 pages, A4 German
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Abstract (at the moment only in German available)
Using the example of an extensive measuring series of Acetic Anhydride Hydrolyses, various influences, sources of errors as well as accuracy are determined.
This article is of particular interest to advanced Calo 2000 users, as it requires in depth knowledge of Calorimetry particularly of Calo 2000 methods.
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> Top Reaction Calorimetry
Accurate cp Determination of Glycol
(APP) (from the year 2005) |
Exakte cp Bestimmung
Filegrösse 4'687 kB
26 Seiten, A4 Deutsch
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Abstract (at the moment only in German available)
For calibration purposes correct cp values at 20°C of ethylene glycol, di-ethylene glycol und tri-ethylene glycol should be available.
The description shows the method of measurement using Calo 2310 pro; also with mean and standard deviation.
An accuracy of a few percents were obtained with a normal investigation expenditure, comparable to other experiments.
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> Top Reaktionskalorimetrie
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Research & Development
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Study of Calo 2000 during crystallization tests
(R&D) (from the year 1999) |
Study of Calo 2000
File size 334 kB
9 pages, A4 English
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Abstract
The combined Heat Flow and Heat Balance Calorimetry were examined using a Crystallisation process. Crystallisation is particularly suitable for non-isothermal experiments with very small reaction outputs.
Demonstrated are all different interference influences and resulting conclusions.
It was a long hard road from this study to the currently produced instrument, which can be seen when comparing results then and now.
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> Top Reaction Calorimetry
Theory of HBC & HFC, Sensitivity, Dynamics
and the 4 operations types (R&D) (beginning of the year 2000) |
Performance Calo 2000
File size 3'245 kB
8 pages, A4 English
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Abstract
Combined Heat Flow and Heat Balance Calorimetry are briefly explained. Two independent, complimentary measurements are simultaneously performed, to enable the user to check their plausibility.
A sensitivity and dynamics examination follows, based on experiments.
The major advantage of using all 4 available operational methods is explained.
A brief overview regarding reproducibility shows first results.
At the end the Pulse–Response from the live Signal and the signal based on the model are demonstrated.
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> Top Reaction Calorimetry
The first true non-isothermal Reaction Calorimeter
(R&D) (March 2000) |
True non-isothermal Calorimeter
File size 334 kB
9 pages, A4 English
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Abstract
Report #1: Reproducibility and Accuracy
The solvation heat of H2SO4 in Water (as an aqueous experiment) is examined, later the Alcoholysis of Acetic anhydride in Methanol (as organic experiment).
Mean values and standard deviations are discussed.
Report #2: Dynamic Pulse Response
The pulse response of calibration heating, solvation heat, and of the Alcoholysis are displayed.
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> Top Reaction Calorimetry
Reaction Calorimetry - Hardness Test Calo 2000 Principle
(R&D) (July 2000) |
Verification Calo 2000
File size 2'369 kB
30 pages, A4 English
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Abstract
Investigation into the suitability of Heat Flow and Heat Balance Calorimetry for non-isothermal, homogeneous and non-homogeneous 2-phase systems (solid –liquid)
The example of Crystallisation and dissolving of Mandelic Acid (in two different concentrations) is used under different conditions to put the Calo 2000 principle to the Acid test. The influence of various stirrer speeds down to a complete standstill (!) was examined.
All results are summarised in tables using mean values and standard deviation.
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> Top Reaction Calorimetry
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