{"wikiid":422870,"langid":"en","namespace":"CATEGORY","title":"Colorimeter","revisionid":1144960,"contents_raw":"== Background and Identification ==\n\nA colorimeter is a device that measures the \u201cabsorbance\u00a0of particular\u00a0wavelengths\u00a0of\u00a0light\u00a0by a specific\u00a0solution.\u201d (Wikipedia) This means that  when a particular color of light or wavelength is directed through a chemical solution, then some of the light is transmitted and some of it is absorbed.  You can use it to determine the concentration of an unknown substance by comparing the absorbance of a solution of known concentration and compare it with the absorbance of a solution with an unknown concentration.\n\nIn a lab setting a chemist may use the colorimeter to determine colors or determine the concentration of a substance in solution. One might use a colorimeter in lab research, water quality analysis, or keeping track of the hemoglobin content in blood.\n\n== Additional Information ==\n\n[https:\/\/en.wikipedia.org\/wiki\/Colorimeter_(chemistry)|Wikipedia: Colorimeter (chemistry)]\n\n[https:\/\/sciencing.com\/use-colorimeter-5382170.html|Sciencing: Colorimeter]","contents_json":{"type":"doc","content":[{"type":"heading","attrs":{"level":2},"content":[{"type":"text","text":"Background and Identification"}]},{"type":"paragraph","content":[{"type":"text","text":"A colorimeter is a device that measures the \u201cabsorbance\u00a0of particular\u00a0wavelengths\u00a0of\u00a0light\u00a0by a specific\u00a0solution.\u201d (Wikipedia) This means that  when a particular color of light or wavelength is directed through a chemical solution, then some of the light is transmitted and some of it is absorbed.  You can use it to determine the concentration of an unknown substance by comparing the absorbance of a solution of known concentration and compare it with the absorbance of a solution with an unknown concentration."}]},{"type":"paragraph","content":[{"type":"text","text":"In a lab setting a chemist may use the colorimeter to determine colors or determine the concentration of a substance in solution. One might use a colorimeter in lab research, water quality analysis, or keeping track of the hemoglobin content in blood."}]},{"type":"heading","attrs":{"level":2},"content":[{"type":"text","text":"Additional Information"}]},{"type":"paragraph","content":[{"type":"text","marks":[{"type":"link","attrs":{"href":"https:\/\/en.wikipedia.org\/wiki\/Colorimeter_(chemistry)","target":false}}],"text":"Wikipedia: Colorimeter (chemistry)"}]},{"type":"paragraph","content":[{"type":"text","marks":[{"type":"link","attrs":{"href":"https:\/\/sciencing.com\/use-colorimeter-5382170.html","target":false}}],"text":"Sciencing: Colorimeter"}]}]},"contents_rendered":"<div class=\"clearer\"><\/div><div class=\"headerContainer\"><a class=\"selfLink\" href=\"#Section_Background_and_Identification\" title=\"Link to this section\" aria-hidden=\"true\" tabindex=\"-1\"><span    class=\"fa-svg-icon\"><svg width=\"16\" height=\"16\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\" overflow=\"visible\"><!--! Font Awesome Pro 7.3.1 by @fontawesome - https:\/\/fontawesome.com License - https:\/\/fontawesome.com\/license (Commercial License) Copyright 2026 Fonticons, Inc. --><path d=\"M427.5 88c-21.4 0-42.2 6.9-59.3 19.4-11.4-11.7-24.4-22.1-38.4-30.7 27-23.6 61.7-36.7 97.7-36.7 82 0 148.5 66.5 148.5 148.5 0 39.4-15.6 77.1-43.5 105l-79.1 79.1c-27.8 27.8-65.6 43.5-105 43.5-82 0-148.5-66.5-148.5-148.5 0-17.9 3.2-35.5 9.4-51.9 4.6-12.4 18.5-18.7 30.9-14.1S259 220 254.4 232.4c-4.2 11.1-6.4 23-6.4 35.2 0 55.5 45 100.5 100.5 100.5 26.6 0 52.2-10.6 71-29.4l79.1-79.1C517.4 240.6 528 215.1 528 188.5 528 133 483 88 427.5 88zm-200 56c-26.6 0-52.2 10.6-71 29.4L77.4 252.5c-18.8 18.8-29.4 44.4-29.4 71 0 55.5 45 100.5 100.5 100.5 21.4 0 42.2-6.9 59.3-19.4 11.4 11.8 24.4 22.1 38.4 30.7-27 23.6-61.7 36.7-97.7 36.7-82 0-148.5-66.5-148.5-148.5 0-39.4 15.6-77.1 43.5-105l79.1-79.1c27.8-27.8 65.6-43.5 105-43.5 82 0 148.5 66.5 148.5 148.5 0 17.9-3.2 35.5-9.4 51.9-4.6 12.4-18.5 18.7-30.9 14.1S317 292 321.6 279.6c4.2-11.1 6.4-23 6.4-35.1 0-55.5-45-100.5-100.5-100.5z\"\/><\/svg><\/span><\/a><h2 id=\"Section_Background_and_Identification\" class=\"header\">Background and Identification<\/h2><\/div>\n\n<p>A colorimeter is a device that measures the \u201cabsorbance\u00a0of particular\u00a0wavelengths\u00a0of\u00a0light\u00a0by a specific\u00a0solution.\u201d (Wikipedia) This means that  when a particular color of light or wavelength is directed through a chemical solution, then some of the light is transmitted and some of it is absorbed.  You can use it to determine the concentration of an unknown substance by comparing the absorbance of a solution of known concentration and compare it with the absorbance of a solution with an unknown concentration.<\/p>\n\n<p>In a lab setting a chemist may use the colorimeter to determine colors or determine the concentration of a substance in solution. One might use a colorimeter in lab research, water quality analysis, or keeping track of the hemoglobin content in blood.<\/p>\n\n<div class=\"clearer\"><\/div><div class=\"headerContainer\"><a class=\"selfLink\" href=\"#Section_Additional_Information\" title=\"Link to this section\" aria-hidden=\"true\" tabindex=\"-1\"><span    class=\"fa-svg-icon\"><svg width=\"16\" height=\"16\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\" overflow=\"visible\"><!--! Font Awesome Pro 7.3.1 by @fontawesome - https:\/\/fontawesome.com License - https:\/\/fontawesome.com\/license (Commercial License) Copyright 2026 Fonticons, Inc. --><path d=\"M427.5 88c-21.4 0-42.2 6.9-59.3 19.4-11.4-11.7-24.4-22.1-38.4-30.7 27-23.6 61.7-36.7 97.7-36.7 82 0 148.5 66.5 148.5 148.5 0 39.4-15.6 77.1-43.5 105l-79.1 79.1c-27.8 27.8-65.6 43.5-105 43.5-82 0-148.5-66.5-148.5-148.5 0-17.9 3.2-35.5 9.4-51.9 4.6-12.4 18.5-18.7 30.9-14.1S259 220 254.4 232.4c-4.2 11.1-6.4 23-6.4 35.2 0 55.5 45 100.5 100.5 100.5 26.6 0 52.2-10.6 71-29.4l79.1-79.1C517.4 240.6 528 215.1 528 188.5 528 133 483 88 427.5 88zm-200 56c-26.6 0-52.2 10.6-71 29.4L77.4 252.5c-18.8 18.8-29.4 44.4-29.4 71 0 55.5 45 100.5 100.5 100.5 21.4 0 42.2-6.9 59.3-19.4 11.4 11.8 24.4 22.1 38.4 30.7-27 23.6-61.7 36.7-97.7 36.7-82 0-148.5-66.5-148.5-148.5 0-39.4 15.6-77.1 43.5-105l79.1-79.1c27.8-27.8 65.6-43.5 105-43.5 82 0 148.5 66.5 148.5 148.5 0 17.9-3.2 35.5-9.4 51.9-4.6 12.4-18.5 18.7-30.9 14.1S317 292 321.6 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