By Lajos Kovács, Dezső Csupor, Gábor Lente, Tamás Gunda
100 Chemical Myths bargains with well known but principally unfaithful misconceptions and misunderstandings with regards to chemistry. It includes lucid and concise causes lower via fallacies and concrete legends which are universally proper to a world viewers. a variety of chemical myths are explored in those parts; meals, medicinal drugs, catastrophes, chemical compounds, and environmental difficulties. Connections to pop culture, literature, video clips, and cultural background carry the reader’s curiosity while key techniques are fantastically annotated with illustrations to facilitate the knowledge of unusual fabric. Chemical Myths Demystified is pitched to contributors and not using a formal chemistry history to fledgling undergraduate chemists to pro researchers and beyond.
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Additional info for 100 Chemical Myths: Misconceptions, Misunderstandings, Explanations
1 % benzoic acid. It is one of the preservatives with the longest known histories, often used in canned fruit, pickle and soft drinks. Vitamin C (L-ascorbic acid) is probably the best known vitamin, and the daily amount necessary for humans is between 50 and 100 mg depending on age (150 mg for breastfeeding mothers). It is present in many natural sources and is also a common synthetic product. Suspicion about a possible health risk from the simultaneous consumption of benzoic and ascorbic acid arose in the 1990’s in connection with soft drinks.
12 Manipulating Weather: Ocean Fertilization 33 With everything taken together, was the LOHAFEX experiment a failure? The evaluators, some of whom were the participants themselves, said that results of the iron fertilizing did not live up to the expectations. On the other hand, earlier experiments in waters with high silicate content actually showed highly increased removal of carbon dioxide. The LOHAFEX experiment proved that it is very important to choose the location. Both proponents and opponents of iron fertilization think there is a need for more experiments to better assess the possible benefits.
An optimistic estimate would be 68,000. For the in vivo tests of these substances according to current REACH regulations, 54 million test animals would be necessary between 2008 and 2018. 5 billion €. About 90 % of the animals used were planned to be tested in reproduction studies. The European Union does not have the facilities to carry out these tests. Because of the huge difference between estimates and actual numbers, Hartung and Rovida called for a suspension of second-generation tests. This may only be necessary if the first-generation offspring gives reason for suspicion.