44 Determination of saponification value
The saponification value is the number of mg of potassium hydroxide required to neutralize the fatty acids resulting from the complete hydrolysis of 1 g of the substance In the procedure described, a 50-mL burette should preferably be used for titration, as in the blank titration the volume of
LIPIDS: SAPONIFICATION (THE PROPERTIES AND SYNTHESIS OF SOAP)
commercial saponification reaction, the glycerol (or glycerin) that is produced is removed (it is often worth more to the company than the soap itself), and other (less expensive) materials are added to the soap to provide the qualities of glycerol The amphipathy of soap molecules has contributed to the understanding of how
Experiment 13 – Preparation of Soap - Laney College
Jan 13, 2012 · Part 1 – Saponification – Preparation of Soap 1 Weigh a 150-mL beaker and record the mass Add about 5 g of a fat or oil, reweigh, and record the mass Calculate the mass of fat or oil used by subtraction Record the type of fat or oil you are using 2 Add 15 mL of ethanol and 15 mL of 20 NaOH to the beaker (Be very careful
DETERMINATION OF SAPONIFICATION VALUE
DETERMINATION OF SAPONIFICATION VALUE LOW L K & NG C S INTRODUCTION Saponification is the hydrolysis of esters Oils and fats are the fatty acid esters of the trihydroxy alcohol, glycerol The saponification value of an oil is defined as the number of milligrams of potassium hydroxide required to neutralise the fatty acids resulting from the
Aspen Plus® Simulation of Saponification of Ethyl Acetate in
Saponification Saponification is the hydrolysis of a carboxylic acid ester in a basic medium (equation 1) Saponification is essentially a soap-manufacturing process that takes place by reacting the fatty acid with alkali, especially triglycerides producing glycerol and carboxylate salts (soap) NaOH+ CH 3 COOR → CH 3
Synthesis of Soap from Olive Oil - University of Idaho
This ‘saponification’ can also be referred to as base hydrolysis Experiment 7 – Chem 276 – Fall Semester 2010 Page 2 of 4 Industrially, soap is made by reaction of sodium hydroxide with vegetable fat or a form of beef or mutton fat
Chapter 8 Lipids - Angelo State University
Saponification of Triglycerides • In saponification reactions, triglycerides react with strong bases (NaOH or KOH) to form the carboxylate salts of the fatty acids, called soaps: 21 CH 2 CH CH 2 O O O 3 C O (CH 2) 14 CH 3 C O (CH 2) 7 CH=CH(CH 2) 7 CH 3 C O (CH 2) 6 (CH 2 CH=CH) 2 (CH 2) 4 CH 3 NaOH Na+ -O Na+ -O Na+ -O C O (CH 2) 14 CH 3 C O
Soap and Detergent Manufacture - NZ Institute of Chemistry
Step 1 - Saponification A mixture of tallow (animal fat) and coconut oil is mixed with sodium hydroxide and heated The soap produced is the salt of a long chain carboxylic acid Step 2 - Glycerine removal Glycerine is more valuable than soap, so most of it is removed Some is left in the soap to help make it soft and smooth
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