{"id":1441,"date":"2017-03-01T16:15:55","date_gmt":"2017-03-01T16:15:55","guid":{"rendered":"http:\/\/www.experimentoscientificos.es\/?p=1441"},"modified":"2018-03-24T13:50:04","modified_gmt":"2018-03-24T13:50:04","slug":"escala-del-ph","status":"publish","type":"page","link":"https:\/\/www.experimentoscientificos.es\/en\/ph\/escala-del-ph\/","title":{"rendered":"pH scale"},"content":{"rendered":"<p>The scale of the <a href=\"http:\/\/www.experimentoscientificos.es\/en\/ph\/\">pH<\/a> ranges from 1 for more acidic substances to 14 for more alkaline substances. The neutral pH is 7 and corresponds to distilled water. The colours of the pH scale depend only on the standard being used.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1443 aligncenter\" src=\"http:\/\/www.experimentoscientificos.es\/wp-content\/uploads\/2017\/03\/escala-ph.jpg\" alt=\"Escala pH\" width=\"728\" height=\"310\" srcset=\"https:\/\/www.experimentoscientificos.es\/wp-content\/uploads\/2017\/03\/escala-ph.jpg 728w, https:\/\/www.experimentoscientificos.es\/wp-content\/uploads\/2017\/03\/escala-ph-300x128.jpg 300w\" sizes=\"(max-width: 728px) 100vw, 728px\" \/><\/p>\n<h2>PH ACID<\/h2>\n<p>These are called acidic substances, which are substances that have an acidic or acidic <strong>pH less than 7<\/strong> have a number of common properties that make them very easy to distinguish:<\/p>\n<ul>\n<li>Acidic substances have a sour or acidic taste, such as citrus fruits, vinegar, or aspirin (acetylsalicylic acid).<\/li>\n<li>They react with bases (alkaline substances) in acid-base reactions, giving a salt and water.<\/li>\n<li>Acids react with metal to form salt and hydrogen, H2. Care must be taken when reacting an acid with a metal because of this generation of hydrogen. Here you can see the <a href=\"http:\/\/www.experimentoscientificos.es\/en\/producir-hidrogeno\/\">reaction between Al and HCL<\/a>.<\/li>\n<li>They react with metal oxides to produce a salt and water. In this way acids are usually good for cleaning corrosion.<\/li>\n<li>They produce burns on the skin.<\/li>\n<li>Conduct electricity in solution<\/li>\n<\/ul>\n<h2>ALKALINE PH<\/h2>\n<p>Substances with <strong>pH greater than 7<\/strong>These are the so-called alkaline or basic substances and also have common characteristics, which are:<\/p>\n<ul>\n<li>Alkaline substances dissolve in water.<\/li>\n<li>They react with acids in so-called acid-base reactions, resulting in a salt and water.<\/li>\n<li>They have a somewhat bitter taste<\/li>\n<li>They are electrical conductors<\/li>\n<li>They dissolve grease, which is why they are used in soaps. But a high pH is irritating to the skin.<\/li>\n<\/ul>\n<p>Some <strong>examples<\/strong> of known bases are bleach, ammonia, detergent, sodium hydroxide.<\/p>\n<p>You can read more about pH here: <a href=\"http:\/\/www.experimentoscientificos.es\/en\/ph\/\">the pH<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>The pH scale ranges from 1, for the most acidic substances, to 14 for the most alkaline substances. The neutral pH is 7 and corresponds to distilled water. The colours of the pH scale depend only on the standard being used. PH ACID PH These are called acidic substances, which are substances that [...]<\/p>","protected":false},"author":1,"featured_media":1443,"parent":1711,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"_acf_changed":false,"footnotes":""},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Escala del pH - Experimentoscientificos.es<\/title>\n<meta name=\"description\" content=\"La escala del pH es un gr\u00e1fico para definir el pH que var\u00eda entre 1, las sustancias m\u00e1s \u00e1cidas hasta 14, las sustancias m\u00e1s b\u00e1sicas.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.experimentoscientificos.es\/en\/ph\/escala-del-ph\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Escala del pH - Experimentoscientificos.es\" \/>\n<meta property=\"og:description\" content=\"La escala del pH es un gr\u00e1fico para definir el pH que var\u00eda entre 1, las sustancias m\u00e1s \u00e1cidas hasta 14, las sustancias m\u00e1s b\u00e1sicas.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.experimentoscientificos.es\/en\/ph\/escala-del-ph\/\" \/>\n<meta property=\"og:site_name\" content=\"Experimentos Cient\u00edficos\" \/>\n<meta property=\"article:modified_time\" content=\"2018-03-24T13:50:04+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.experimentoscientificos.es\/ph\/escala-del-ph\/\",\"url\":\"https:\/\/www.experimentoscientificos.es\/ph\/escala-del-ph\/\",\"name\":\"Escala del pH - Experimentoscientificos.es\",\"isPartOf\":{\"@id\":\"https:\/\/www.experimentoscientificos.es\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.experimentoscientificos.es\/ph\/escala-del-ph\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.experimentoscientificos.es\/ph\/escala-del-ph\/#primaryimage\"},\"thumbnailUrl\":\"\",\"datePublished\":\"2017-03-01T16:15:55+00:00\",\"dateModified\":\"2018-03-24T13:50:04+00:00\",\"description\":\"La escala del pH es un gr\u00e1fico para definir el pH que var\u00eda entre 1, las sustancias m\u00e1s \u00e1cidas hasta 14, las sustancias m\u00e1s b\u00e1sicas.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.experimentoscientificos.es\/ph\/escala-del-ph\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.experimentoscientificos.es\/ph\/escala-del-ph\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.experimentoscientificos.es\/ph\/escala-del-ph\/#primaryimage\",\"url\":\"\",\"contentUrl\":\"\",\"width\":728,\"height\":310,\"caption\":\"pH\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.experimentoscientificos.es\/ph\/escala-del-ph\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Inicio\",\"item\":\"https:\/\/www.experimentoscientificos.es\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"pH &#8211; 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