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<title><![CDATA[EC21 Product Catalogs - phenolphthalein indicator]]></title>
<link><![CDATA[https://www.ec21.com/ec-market/phenolphthalein indicator.html]]></link><item>
<title><![CDATA[Niacinamide PYRIDINE-3-carboxamide CAS 98-92-0]]></title><link><![CDATA[https://doseohee.en.ec21.com/Niacinamide_PYRIDINE_3_carboxamide_CAS--11587389_11796168.html]]></link><description><![CDATA[phenolphthalein indicator solution, neutralize with dilute sulfuric acid, and add copper sulfate test solution to precipitate a light blue precipitate.
Identification
UV spectrum
There is maximum abs]]></description><pubDate><![CDATA[20230524]]></pubDate></item>
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<title><![CDATA[Medium Temperature Black Phosphate Coating for Metal Surface Treatment]]></title><link><![CDATA[https://cnqdads.en.ec21.com/Medium_Temperature_Black_Phosphate_Coating--10438165_10431155.html]]></link><description><![CDATA[Phenolphthalein indicator , Titrate with 0.1 M NaOH from colorless to pink, the NaOH volume consumed is total acidity point.
Free acidity:Take 10 ml solution to 150ml the triangle bottle , add 3~4 dr]]></description><pubDate><![CDATA[20231207]]></pubDate></item>

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