Why Are the Chemicals Contained Additional Items Needed in Dual-chamber Containers?
Additional Items Needed Most of these items are already in your home and are easy to obtain. We suggest you read each experiment before starting it, to make sure you have all of the items that you need. Vinegar Very fine paint brush or quill-type ink pen Coffee filter or “blotting” paper Paper Lemon juice Onion Glue Paper clips Black ink (liquid) Markers (assorted colors) Candle (3 to 4 cm tall) Matches or lighter Coin Needle Razor blade Matchbox Round bottle (water bottle) Table salt Metal lid (from a jar) 9 Volt battery Why Are the Chemicals Contained in Dual-chamber Containers? Thames & Kosmos chemical vials have a large chamber for larger quantities and a smaller one for chemicals that are only used in small quantities. The fill levels are determined according to need as well as according to safety standards pertaining to chemistry kits. The uniform size of the vials is required by the size of the labels, which have the legally specified information printed on them. How to Dispose of Waste Although most of the chemicals in this kit would pose no hazards for the household garbage or water system, you should get in the habit of using the chemicals sparingly and disposing of chemical waste in an environmentally friendly manner. The proper waste disposal procedures are given in Chapter 11 (p. 37). Additional Chemical Needed Denatured alcohol is required for some experiments. A 16 oz bottle is sufficient. You can find denatured alcohol at your local drug store. This is sometimes called “methylated spirits” or “rubbing alcohol.” We suggest a solution of at least 70% ethyl alcohol. 16th Edition, Franckh-Kosmos Verlags-GmbH & Co. KG, Stuttgart, Germany / 2007 This work, including all its components, is copyright protected. Any use, outside the specific limits of the copyright law, without the consent of the publisher, is prohibited and punishable by law. This applies specifically for reproductions, translations and microfilming and the storage and processing in electronic systems. We do not guarantee that all material in this work is free from other copyright or other protection. © 1989, 1998, 2003, 2004, 2007 Franckh-Kosmos Verlags-GmbH & Co. KG, Stuttgart, Germany Technical Concept and Construction: KOSMOS-Development Labs Design and Illustration: WERTHDESIGN, Horb Photographs: W. Lieber, Heidelberg. K.-H. Diffené, Neustadt/Weinstraße. dpa, Frankfurt. BASF, Ludwigshafen. Lurgi, Frankfurt/M. MCS, Freudenstadt. Stahlwerke Peine-Salzgitter. Dyckerhoff, Lengerich. Benckiser GmbH, Ladenburg. WERTHDESIGN, Horb. KOSMOS Entwicklungslabor. 2nd English Edition, Thames & Kosmos, LLC. Portsmouth, Rhode Island, USA © 2003, 2007 Thames & Kosmos, LLC. Portsmouth, Rhode Island, USA ® Thames & Kosmos name and logo are registered trademarks of Thames & Kosmos, LLC. English Translation and Editing: David Gamon Text Editing and Layout: Ted McGuire Text Editing: Jed Wilcox, Christa Raimondo Printed in Italy/Imprimé en Italie 2
© Copyright 2024