Qualitative Chemical Analysis of Inorganic Substances

Application Qualitative Process Theory to Qualitative Simulation and Analysis of Inorganic Chemical Reaction

In this paper, we explored the possibilities of embedding Qualitative Reasoning techniques, the Qualitative Process Theory (QPT), and its techniques in the field of inorganic chemistry. The targeted field of implementation is in the Chemical Qualitative Simulation and Qualitative Analysis. The QPT is used to model the chemical reaction, behaviors, properties, principles and commonsense reasonin...

Aids to Qualitative Inorganic Analysis

Chemical “ Substances ” That Are Not “ Chemical Substances ”

The main scientific problems of chemical bonding were solved half a century ago, but adequate philosophical understanding of chemical combination is yet to be achieved. Chemists routinely use important terms (“element,” “atom,” “molecule,” “substance”) with more than one meaning. This can lead to misunderstandings. Eliminativists claim that what seems to be a baseball breaking a window is merel...

Simplified qualitative chemical analysis for urinary calculi.

OXALATE Stone powder (2-3 mg) is moistened on an ordinary glass slide with two to three drops of 20% nitric acid and is slowly heated over a small flame to dryness and then for a further 5-10 seconds but without charring. The following results may be noticed: (a) formation of a conspicuous reddish-brown froth indicating ammonium urate; (b) formation ofa flat purplish-brown layer, evidence of ur...

On Tumor-Producing Chemical Substances*

The following is a review of the studies carried out in this laboratory during the past seven or eight years with the view of (a) elucidating the effect of certain exogenous tumor-producing chemical agents and (b) ascertaining the presence within the human body of chemical substances that may call forth the formation of tumors. The present review is based in the main on the results obtained by ...