Edition: BP 2025 (Ph. Eur. 11.6 update)<\/div>\n

General Notices<\/div>\n

Non-ionic Emulsifying Wax<\/div>\n

Action and use<\/strong><\/div>\n
Emulsifying agent.<\/div>\n
DEFINITION<\/h2>\n
Cetostearyl Alcohol 800 g<\/div>\n
Macrogol Cetostearyl Ether (22) 200 g<\/div>\n
Extemporaneous preparation<\/strong><\/div>\n
The following directions apply.<\/div>\n
Melt together and stir until cold.<\/div>\n
CHARACTERISTICS<\/h2>\n
A white or almost white, waxy solid or flakes melting when heated to a clear almost colourless liquid.<\/div>\n
Practically insoluble in water, producing an emulsion; moderately soluble in ethanol (96%); partly soluble in ether.<\/div>\n
IDENTIFICATION<\/h2>\n
A. Incinerate at a temperature not exceeding 450\u00b0 until free from carbon and cool. The residue is negligible (distinction from Emulsifying Wax).<\/div>\n
B. Complies with the test for Sulfated ash.<\/div>\n
TESTS<\/h2>\n
Acid value<\/strong><\/div>\n
Not more than 0.5, Appendix X B.<\/div>\n
Refractive index<\/strong><\/div>\n
At 60\u00b0, 1.435 to 1.439, Appendix V E.<\/div>\n
Solidifying point<\/strong><\/div>\n
45\u00b0 to 53\u00b0, Appendix V B, using the following modifications. Place in the inner test tube sufficient of the melted substance to fill the tube to a depth of about 50 mm. Stir the substance gently and steadily, without scraping the wall of the tube, while the tube and its contents are allowed to cool. The temperature at which the level of the mercury in the thermometer remains stationary for a short time is regarded as the solidifying point.<\/div>\n
Alkalinity<\/strong><\/div>\n
Dissolve 10 g in 10 mL of water and 10 mL of ethanol (96%). Not more than 0.5 mL of 0.1M hydrochloric acid VS is required for neutralisation using phenolphthalein solution R1 as indicator.<\/div>\n
Hydroxyl value<\/strong><\/div>\n
175 to 192, Appendix X D. Use 3.5 g.<\/div>\n
Saponification value<\/strong><\/div>\n
Not more than 2.0, Appendix X G. Use 20 g.<\/div>\n
Sulfated ash<\/strong><\/div>\n
Not more than 0.1%, Appendix IX A.<\/div>\n","protected":false},"excerpt":{"rendered":"
Edition: BP 2025 (Ph. Eur. 11.6 update) General Notices Non-ionic Emulsifying Wax Action and use Emulsifying agent. DEFINITION Cetostearyl Alcohol 800 g Macrogol Cetostearyl Ether (22) 200 g Extemporaneous preparation The following directions apply. Melt together and stir until cold. CHARACTERISTICS A white or almost white, waxy solid or flakes melting when heated to a…<\/p>\n","protected":false},"author":5,"featured_media":8111,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[175],"tags":[],"class_list":["post-8168","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-formulated-preparations-specific-monographs"],"acf":[],"_links":{"self":[{"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/posts\/8168","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\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/comments?post=8168"}],"version-history":[{"count":2,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/posts\/8168\/revisions"}],"predecessor-version":[{"id":8170,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/posts\/8168\/revisions\/8170"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/media\/8111"}],"wp:attachment":[{"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/media?parent=8168"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/categories?post=8168"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nhathuocngocanh.com\/bp\/wp-json\/wp\/v2\/tags?post=8168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}