﻿{"id":16350,"date":"2025-10-20T13:48:18","date_gmt":"2025-10-20T06:48:18","guid":{"rendered":"https:\/\/nhathuocngocanh.com\/bp\/?p=16350"},"modified":"2025-10-20T13:48:18","modified_gmt":"2025-10-20T06:48:18","slug":"industrial-methylated-spirit","status":"publish","type":"post","link":"https:\/\/nhathuocngocanh.com\/bp\/industrial-methylated-spirit\/","title":{"rendered":"Industrial Methylated Spirit"},"content":{"rendered":"<p>Industrial Methylated Spirits; IMS<\/p>\n<p>Industrial Denatured Alcohol<\/p>\n<h2>DEFINITION<\/h2>\n<p>Industrial Methylated Spirit is a mixture of nineteen volumes of ethanol of an appropriate strength with one volume of approved wood naphtha. Two strengths are available containing 99% by volume and 95% by volume of alcohol (also known as 74 OP and 66 OP respectively).<\/p>\n<h2>CHARACTERISTICS<\/h2>\n<p>A colourless, clear, mobile, volatile liquid, boiling at about 78\u00b0.<\/p>\n<h2>IDENTIFICATION<\/h2>\n<p>Mix 0.1 mL with 0.05 mL of an 11% w\/w solution of orthophosphoric acid and 0.25 mL of dilute potassium permanganate solution. After 1 minute add a few mg of sodium metabisulfite and shake until the mixture is decolorised. Add 1.5 mL of a 50% v\/v solution of sulfuric acid and a few mg of finely powdered chromotropic acid sodium salt, shake well and heat on a water bath for 5 minutes. A deep violet colour is produced.<\/p>\n<h2>TESTS<\/h2>\n<h3>Acidity or alkalinity<\/h3>\n<p>25 mL requires not more than 0.2 mL of 0.1M sodium hydroxide VS to produce a pink colour with phenolphthalein solution R1 and not more than 1.0 mL of 0.1M hydrochloric acid VS to produce a red colour with methyl red solution.<\/p>\n<h3>Clarity of solution<\/h3>\n<p>Dilute 5.0 mL to 100 mL with water. The solution is clear, Appendix IV A.<\/p>\n<h3>Apparent density<\/h3>\n<p>For \u201866 OP\u2019 grade, not greater than 811.6 kg m , and for \u201874 OP\u2019 grade, not greater than 792.8 kg m ,<\/p>\n<p>Appendix V G.<\/p>\n<h3>Aldehydes<\/h3>\n<p>To 5.0 mL add 5 mL of water and 1 mL of decolorised fuchsin solution and allow to stand for 30 minutes. Any colour produced is not more intense than that obtained by treating in the same manner 5 mL of a 0.005% w\/v solution of redistilled acetaldehyde in aldehyde-free ethanol (96%) (50 ppm).<\/p>\n<h3>Non-volatile matter<\/h3>\n<p>When evaporated and dried at 105\u00b0, leaves not more than 0.01% w\/v of residue.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Industrial Methylated Spirits; IMS Industrial Denatured Alcohol DEFINITION Industrial Methylated Spirit is a mixture of nineteen volumes of ethanol of an appropriate strength with one volume of approved wood naphtha. Two strengths are available containing 99% by volume and 95% by volume of alcohol (also known as 74 OP and 66 OP respectively). CHARACTERISTICS A&#8230;<\/p>\n","protected":false},"author":4,"featured_media":16352,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[174],"tags":[],"class_list":["post-16350","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-medicinal-substances"],"acf":[],"_links":{"self":[{"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/posts\/16350","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/comments?post=16350"}],"version-history":[{"count":2,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/posts\/16350\/revisions"}],"predecessor-version":[{"id":16355,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/posts\/16350\/revisions\/16355"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/media\/16352"}],"wp:attachment":[{"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/media?parent=16350"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/categories?post=16350"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/tags?post=16350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}