CHAPTER 9 : MANUFACTURED SUBSTANCES IN INDUSTRY NAME: NUR INSYIRAH BTE. AB HAMED CLASS: 4 SAINS GUNAAN (SG) SCHOOL: SMK SERI INDAH CONTENT Content Introduction 9.1 Sulphuric…

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HISTORY OF SOAP MANUFACTURING • Soaps have been used for more than 3000 years. In ancient times, soaps were made from plant ashes (contain potassium carbonate) and animal…

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CHAPTER 9 : MANUFACTURED SUBSTANCES IN INDUSTRY NAME : SITI KHADIJAH ATIKAH BT SHAMSUDDIN CLASS : 4 EXCELLENT TEACHER : MR. ZAFRI CONTENT Content Introduction 9.1 Sulphuric…

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1. INTRODUCTION Phthalic anhydride was first reported by Lauret in 1836. In 1872, BASF developed naphthalene oxidation process. Since then phthalic anhydride has been continuously…

P.Modagan Final Year M.sc, Medical Biochemistry Definition errors before they result in defective product or service. QC refers to the measures that must be included during…