![\"Explanation](\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/pcb-chemistry-laboratory-terminology-1024x576.jpg\")
<\/p>\nVirtually every large PCB manufacturer has a dedicated chemical laboratory, which is responsible for testing and analyzing the concentration of chemicals used on the production line, among other tasks. So, what are some of the common terms used in PCB chemical laboratories? Below, the editorial team at Jingpeng Electronics has summarized a few of them as follows:<\/p>\n
<\/p>\n
Acid Value<\/strong>This refers to the amount of free acid contained in 1 gram of oil, wax, or flux. The method of measurement involves dissolving the sample in hot alcohol, using phenol-titanium as an indicator, and titrating it with potassium hydroxide; the number of milligrams of potassium hydroxide required is the acid value. In PCB manufacturing, acid value is commonly used to assess the acidity or alkalinity of chemical solutions.<\/p>\n B\u00e9me degree<\/strong>It is a method of expressing the specific gravity of liquids in the imperial system, named after the French chemist Antoine Baume, whose surname was adopted as the unit of specific gravity for liquids. It is commonly used to measure the density of liquids. In chemical laboratories, the Baume scale may be used to assess the concentration of a solution.<\/p>\n Dryer<\/strong>A container used to keep items dry, typically made of thick glass. It can be sealed to keep air out, and desiccants such as calcium chloride or silica gel beads are usually placed inside to ensure the items remain dry. In laboratories, desiccators are used to keep chemical reagents or experimental samples dry.<\/p>\n Moore<\/strong>It refers to a unit of mass for a substance. For example, the molar mass of sulfuric acid is 98 grams; therefore, 196 grams of sulfuric acid can be referred to as 2 moles of sulfuric acid. The mole is commonly used to measure the amount of a substance. In chemistry laboratories, the mole is an important unit for calculating the amount of a substance in a chemical reaction.<\/p>\n Standard Concentration<\/strong>This refers to a method of expressing the concentration of an aqueous solution, typically denoted by the symbol N. It is related to molar concentration and can be used to express the concentration of various substances in a specific solution. In the laboratory, standard concentration is used to prepare solutions for chemical analysis or reactions.<\/p>\n pH<\/strong>It is an artificial scale used to indicate the acidity or alkalinity of an aqueous solution. It is based on the logarithm of the hydrogen ion concentration in water and is commonly used to measure the acidity or alkalinity of a solution. A pH value between 0 and 7 indicates acidity, a value between 7 and 14 indicates alkalinity, and a value of 7 indicates neutrality. In a laboratory setting, pH is an important parameter used to adjust the conditions of chemical reactions.<\/p>\n Qualitative Analysis<\/strong>This refers to the chemical analysis of the types of components present in a substance. Its goal is to identify the elements and properties of a substance, rather than to measure their specific concentrations. In the laboratory, qualitative analysis is typically used to identify the components of unknown substances.<\/p>\n Quantitative Analysis<\/strong>This refers to the analysis of the specific amounts of various components in a substance. Its goal is to determine the weight or concentration of each component. In the laboratory, quantitative analysis is used to determine the exact concentration or content of a substance.<\/p>\n Capacity Analysis Method<\/strong>It is a manual chemical analysis method that uses titration with a solution. It is one of the most commonly used analytical methods in laboratories and is typically employed to measure the concentration of specific chemical substances in a solution. Volumetric analysis is a precise quantitative analytical tool.<\/p>\n These terms are key concepts commonly used in PCB chemical laboratories. They play an important role in analyzing, measuring, and adjusting chemical solutions, as well as in evaluating PCB quality. If you have any further questions about these terms or other laboratory-related topics, please feel free to contact Jingpeng at any time.<\/p>\n Q1: What is Baume?<\/strong><\/p>\n A1: The Baum\u00e9 scale is a method of expressing the specific gravity of liquids in the imperial system; it is commonly used to measure the density of liquids and is named in honor of the French chemist Antoine Baume.<\/p>\n Q2: What is pH?<\/strong><\/p>\n A2: pH is a logarithmic scale used to indicate the acidity or alkalinity of an aqueous solution; it is commonly used to measure the acidity or alkalinity of a solution. Values between 0 and 7 indicate acidity, values between 7 and 14 indicate alkalinity, and a value of 7 indicates neutrality.<\/p>\n Q3: What are qualitative and quantitative analyses?<\/strong><\/p>\n A3: Qualitative analysis is used to identify the components and properties of a substance without measuring its specific content. Quantitative analysis, on the other hand, is used to measure the specific content or concentration of a substance.<\/p>\n Q4: What is capacity analysis?<\/strong><\/p>\n A4: Volumetric analysis is a manual chemical analysis method typically used to measure the concentration of specific chemical substances in a solution; it is a commonly used tool for precise quantitative analysis in laboratories.<\/p>\n These terms used in PCB chemical laboratories are essential for ensuring the accuracy of chemical solutions and experimental conditions. Whether you are a chemist or simply interested in how chemical laboratories operate, understanding these terms can help you better comprehend the workings of a chemical laboratory.<\/p>","protected":false},"excerpt":{"rendered":" \u57fa\u672c\u4e0a\u6bcf\u4e00\u4e2a\u5927\u578b\u7684\u7ebf\u8def\u677f\u5382\u90fd\u4f1a\u6709\u4e00\u4e2a\u4e13\u95e8\u7684\u5316\u5b66\u5b9e\u9a8c\u5ba4\uff0c\u5316\u9a8c\u5ba4\u7684\u4f5c\u7528\u5728\u4e8e\u5316\u9a8c\u548c\u5206\u6790\u751f\u4ea7\u7ebf\u836f\u6c34\u6d53\u5ea6\u7b49\u7b49\uff0c\u90a3\u4e48PCB […]<\/p>\n","protected":false},"author":1,"featured_media":8535,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"slim_seo":{"title":"Explanation of PCB and Chemistry Lab Terminology","description":"How Should PCB Chemical Laboratory Terminology Be Understood? An analysis of the meanings of common concepts such as acid value, Baum\u00e9 scale, mole, nominal concentration, and pH, as well as their applications in controlling the concentration of chemical solutions."},"_slim_seo_primary_term_category":0,"_slim_seo_primary_term_post_tag":0,"footnotes":""},"categories":[26],"tags":[190],"class_list":["post-2688","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-190"],"_links":{"self":[{"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/posts\/2688","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/comments?post=2688"}],"version-history":[{"count":1,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/posts\/2688\/revisions"}],"predecessor-version":[{"id":19304,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/posts\/2688\/revisions\/19304"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/media\/8535"}],"wp:attachment":[{"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/media?parent=2688"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/categories?post=2688"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/tags?post=2688"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}2. Baume (Baume scale)<\/h2>\n
3. Desiccator<\/h2>\n
4. Mole (mole, gram-molecule, gram-atom)<\/h2>\n
5. Normal Concentration (Standard Concentration, Equivalent Concentration)<\/h2>\n
6. pH Value (Acid-Base Value)<\/h2>\n
7. Qualitative Analysis<\/h2>\n
8. Quantitative Analysis<\/h2>\n
9. Volumetric Analysis<\/h2>\n
\nFrequently Asked Questions (FAQ)<\/h2>\n