Stearic acid

18-Carbon chained widespread saturated fatty acid, stearic acid is a solid waxy gist having IUPAC name Octadecanoic acid. Its name has approached as of a Greek utterance “stear” which means tallow. Esters of stearic acid along with salts are called as stearates.Three molecules of stearic acid on the whole domino effect a triglyceride named stearin.Chemical formula of the fatty acid is C17H35CO2H (C18H36O2) and bring into being in nature as ester following palmitic acid (Gunstone FD, 2007).Triglyceride saponification

g/cm3; Melting point:-260–2708C. Moisture content:-Typically less than 5% w/w. Particle size distribution:-mean particle size is 20–200 mm. Solubility:- Slightly soluble in 5% w/v sodium hydroxide solution; practically insoluble in water, dilute acids, and most organic solvents. Specific surface area 1.06–1.12m2/g

wash bottle of sterile water was used to fill the watch glass to the rim till it spilled over. A new beaker was filled with small amount of stearic acid solution. Another pipet was filled with the solution and held at a 45o above the watch glass to drop the solution in. Five seconds of observation were spent between drops, enabling the drops the stearic acid to spread that created a lens. Each drop was counted until a drop floated on the surface for at least 30 seconds. The procedure of creating

chloride, stearic acid, sodium chloride, wax and salicylic acid, and observe them by testing the melting order, in addition to each of the substance’s conductivity and solubility. Using the information gathered from testing the melting, solubility and the conductivity of each of the substance, can help determine if the substance is ionic or covalent. To determine the melting order, a small amount of all the substance minus salicylic acid, were placed on a tray and placed on the hot plate. Stearic acid

bonding effects chemical and physical properties. The lab consisted of 6 compounds Dodecanoic Acid, Sodium Chloride, Duodecose, Octadecanoic Acid, Potassium Bromide and Amylose. Using these compounds, tests were conducted on their appearance, solubility in distilled water, conductivity and melting point. There are 3 groups these compounds can be organized into. One group is Dodecanoic Acid and Stearic Acid. Another group is Duodecose and Amylose and the last group is Sodium Chloride and Potassium Bromide

Making Soap: Lab 1. A saponification reaction is considered to be the reverse of an esterification reaction because in an esterification, a carboxylic acid is combined with an alcohol to produce an ester and water; and in a saponification, an ester is combined with lye (Na+ + OH-) to produce the salt of a carboxylic acid and an alcohol. Essentially, the products and reactants are opposites of each other in either reaction. 2. The functional groups in glycerol are hydroxyl groups (OH). It belongs

The major saturated fatty acid in most diets is palmitic acid. [19] It is most common in animal fats but also occurs in vegetable oil. It has been shown in research that palmitic acid increases LDL cholesterol levels in parallel to total cholesterol levels. [30] Myristic acid has also been shown in two studies conducted in the 1960’s to raise cholesterol concentration. [9, 10] The study conducted by Hegsted et al. suggested that myristic acid raises cholesterol concentrations even higher than palmitic

amino acids from glucose b. lactose from a source of sucrose c. fat from excess carbohydrate intake d. glucose from a non-carbohydrate substance 17) What is the minimum daily amount of dietary carbohydrate necessary to spare body protein from excessive breakdown? a. 10-25g b. 50-100g c. 150-175g d. 200-400g 18) Which of the following is a feature of aspartame? a. it is composed of 1 sugar molecule and 3 chlorine atoms b. it is made up of three amino acids c. it is recommended

My group worked with another group that supplied the GC data for the standard vegetable fatty acid methyl esters and the animal fatty acid methyl esters. Our group was responsible for the GC analysis of the unknown sample. We began by preparing an 80C water bath in the fume hoods. We then placed about 0.4ml of oil or fat chloroform in a flasks and added 4ml of 0.5N sodium hydroxide in methanol. The flask was then placed in the fume hood and was heated until the oil globules went into the solution

Module 01 Homework Assignment Use the information presented in this module along with additional outside research to answer the questions: 1. Describe how applied microbiology is used to improve aspects of life and the environment. Microbiology is the study of microorganisms (VanMeter, VanMeter, & Hubert, n.d., p.3). These are all of the things not visible to the human eye. With the study of microbiology, it enables us to find things such as viruses and bacteria. This is helpful because