Chemistry Research Part 1 Acids Essay

Ethanoic erosive is non-toxic and is a light-colored battery-acid 4, meaning it will not do any disability to most surfaces as it does not corrode or bind to early(a) metals, thusly can be easily removed through laundering or rinsing it 2. DisadvantagesEthanoic stifling is the slowest de-scaler of the three acids, and is therefore the to the lowest degree effective. It also may cause an unpleasant smell, and can have a negative effect on the taste of coffee 6 meaning bingle would need to spend longer time rinsing and pluming the car thoroughly to ensure that the taste of the coffee is not affected. Citric AcidAdvantagesCitric acid leaves behind zero toxic residues and has just luxuriant acidic concentration to descale without etching or damaging star sign surfaces in any way and there are no erratic compounds or products that harm the environment. DisadvantagesBecause citric acid is a weak acid, it wont remove heavy build-up of scale very quickly. It is also a powder he nce it must be dissolved for use. It also reachings best with hot water meaning there will be laid-backer energy consumption. Even when used with hot water, citric acid is not as effective at descaling as Sulfamic acid. Sulfamic AcidAdvantagesSulfamic acid is the fastest de-scaler It dissociates into hydroxonium ions more readily in aqueous solution than the others, therefore giving a greater concentration of atoms that are able to fight down with the atomic number 20 in lime scale. It is safe to use because it does not defecate chlorine gas 5, which can be toxic. Sulfamic acid also has a low volatility. DisadvantagesSulfamic Acid can be an irritant to eyes or skin and is the most expensive of the de-scalers. Q2) How these de-scalers remove limescale lime hydratescale forms when hard water is heated up above 61C or when it is left to evaporate on surfaces such as taps and showerheads. Hard water is water that contains high quantities of calcium and magnesium ions. These hardn ess minerals, in the form of calcium change and magnesium carbonate, precipitate out of hard water to form limescale 1.Therefore, to clean or remove limescale, something needs to dissolve or soften calcium carbonate and/or magnesium carbonate, so it can easily wash external. Acids cause mineral deposits such as rust to oxidise, thereby modify them and making it possible to simply wash them away. Lime scale removers work by chemically reacting with the lime scale to form safe chemicals and ions.Lime scale is calcium Carbonate, and when broken down by strong acids, produces Calcium Chloride, Water and CO2. These are much safer, and can be washed away with water, to remove the CaCl from the area. Bibliography1 http//www.dynapipe.co.uk/how-to-remove-limescale.htm2 http//www.coffeehomedirect.com/how/to/clean/a/coffee/maker/with/vinegar 3 http//www.ehow.co.uk/how_7404899_delime-coffee-maker.html 4 http//incarinsurance.org/advantages/advantages-and-disadvantages-of-using-ethanoic-acid-a s-a-descaler-.html 5 http//uk.answers.yahoo.com/ skepticism/index?qid=20130123013345AA71LkB 6 http//www.p4c.philips.com/cgi-bin/dcbint/cpindex.pl?scy=ZAslg=ENGctn=HD5405/60dct=FAQrefnr=0092154view=aa12_view_partial.htmlsession=20120502004843_66.249.71.242faqview=1