Introduction Silicon dioxide, also known assilica, is anoxideofsiliconwith thechemical formulaSiO2, commonly found in nature asquartz.In many parts of the world, silica is the major constituent ofsand. Silica is one of the most complex and abundant families ofmaterials, existing as...
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Introduction 2-thiobarbituric acidisa barbiturate, the structure of which is that of barbituric acid in which the oxygen at C-2 is replaced by sulfur. It has a role as a reagent and an allergen. 2-Thiobarbituric acid has been reported in...
Introduction Potassium Permanganate KMnO4 is an inorganic chemical compound. It is also known as Condy’s crystals or permanganate of potash. A German-Dutch chemistJohann Rudolf Glauberwas the first to discover the production of KMnO4in the year 1659. This compound is...
Introduction PH Strip Merck, also known as a litmus test, are used to determine the pH value of a liquid, e.g. pH strips for water to spray the crop with. The pH of a liquid indicates whether a liquid...
Introduction Zinc Foil Sheet and Plate have been widely used for corrosion resistance, especially in offshore platforms, shipping, and submarines. MetalsTek offers Zinc Sheet Foil Ribbon and Plate in various sizes and purities (up to 99.9999%). Zinc Foil Sheets...
Introduction Adropping funneloraddition funnelis a type oflaboratory glasswareused to transferliquids. They are fitted with astopcockwhich allows the flow to be controlled. Dropping funnels are useful for addingreagentsslowly, i.e. drop-wise. This is desirable when the quick addition of the reagent...
Introduction Commonly used in chemistry for reflux applications, such as Sechelt extraction; provides efficient cooling and condensation; ideal for food, pharmaceutical, and environmental industries; can be used to extract essential oils from plants, determine crude fat content, conduct laboratory-scale...
Introduction prevents internal short-circuiting of electrons. Internal short-circuiting implies the movement of electrons from the anode to cathode through the electrolyte, which dissipates the chemical energy without providing electrical potential in the external circuit. When the electrolyte is solid,...
Introduction Vapor that passes the thermometer condenses in the condenser, a double-walled tube that is cooled by water flowing through the outer layer, and drips into the receiver. Before moving on, let us look at benefits and drawbacks to...
Introduction Pyrex(trademarkedasPYREXandpyrex) is abrandintroduced byCorning Inc.in 1915, initially for a line of clear, low-thermal-expansionborosilicate glassused forlaboratory glasswareandkitchenware. It was later expanded in the 1930s to include kitchenware products made ofsoda–lime glassand other materials.Its name has become famous for making...