Comparing the infrared spectrum with the authentic infrared spectrum‚ Figure 2‚ shows that the product aspirin contains benzene ring at 1604.86 cm-1‚ a ketone functional group at 1677.47 cm-1‚ an anhydride functional group at 1750.32 cm-1‚ a carboxylic acid functional group at 3236.09 cm-1. The functional –OH is classified in the aspirin product infrared spectrum but do the fact that it is really wide ranging from 3600 cm-1 through 2500 cm-1‚ there
Premium Chemical reaction Carboxylic acid Acetic acid
Equilibria Student: ___________________________________________________________________________ NOTE: A table of ionization constants and Ka’s is required to work some of the problems in this chapter. 1. In which one of the following solutions will acetic acid have the greatest percent ionization? A. B. C. D. 2. Which one of the following is a buffer solution? A. B. C. D. E. 3. 0.40 M HCN and 0.10 KCN 0.20 M CH3COOH 1.0 M HNO3 and 1.0 M NaNO3 0.10 M KCN 0.50 M HCl and 0.10 NaCl Which one of the
Free PH Buffer solution Sodium hydroxide
Foreign Materials in Food Products Abstract This practical was carried out to learn the uniform evaluation of foreign materials in processed fruit and vegetable commodities. The main focus is on light filth analysis and the method used is Wildman method. It is also called Light filth flotation method since the food will remain in the aqueous layer and settle at the bottom while light filths are collected in the oil layer at the top. So after separation light filths are collected on filter paper
Premium Food Acetic acid Food processing
oxidation‚ reduction‚ hydrolysis‚ deamination and decarboxylation. CARBOHYDRATES AND LIPIDS Fermentation – bacterial degradation of carbohydrates under anaerobic condition – occurs in the intestinal tract Products: • organic acids (formic‚ acetic‚ lactic‚ propionic‚ succinic acids) • gaes (methane‚ carbon dioxide‚ hydrogen) PROTEINS Putrefaction – bacterial decomposition of proteins under anaerobic condition • aromatic amino acids are transformed into phenol‚ cresol‚ indole and
Premium Carboxylic acid Amino acid Acetic acid
The average contents (±SD) of kaurenoic acid in the Araliae Continentalis Radix extract powder were estimated as 1.147±0.008 mg in 1.0054 g‚ usual dose of Araliae Continentalis Radix. Quantification of kaurenoic acid UPLC–MS/MS has been emerging as a powerful analytical technique for the determination of analyte in biological samples to improve sensitivity and selectivity. Herein‚ we developed a simple‚ selective‚ and sensitive bioanalytical UPLC-MS/MS method for the quantification of kaurenoic
Premium Acid Titration Sodium hydroxide
3rd ed. New York: Wiley & Sons‚ 1994. Strange De Soria‚ Louise. Chemistry 2641 Laboratory Survival Guide. Atlanta: Dekalb College Central Campus Science Department‚ 2001. PURPOSE: The purpose of this experiment is to use isopentyl alcohol and acetic acid to produce an ester (ethyl laurate). THEORY Esters are among the most widespread of all naturally occurring compounds. Many simple esters are pleasant-smelling liquids that are responsible for the fragrant odors of fruits and flowers
Premium Ester Acetic acid
HISTORY 2 In recent years‚ there is an increase global demand of nata de coco indonesia products. Therefore Indonesia has the largest potential resources to supply nata de coco indonesia to the world’s market. "Nata de coco" in Spanish is means "coconut cream". The cream is coconut milk intended. The naming of nata de coco in Spanish because the Philippines had been a colony of Spain. Nata de coco is a dessert that looks like jelly‚ white to translucent and chewy texture. This food is produced
Premium Fermentation Acetic acid Vinegar
waste container. Procedure: In a reaction tube‚ 0.05 g of acetanilide is added and the exact mass is recorded. In the same reaction tube‚ 8 drops of glacial acid is added carefully inside the hood‚ and stirred well. Also‚ 8 drops of bromine in acetic acid is added‚ and placed for 10 minute in the hood until yellow crystals are forming. Then‚ 0.5 mL of water followed by 5 drops of sodium bisulfite solution are added to the reaction tube. The reaction tube is placed on an ice bath to cool down and
Premium Chemical reaction Chemistry Organic reaction
filtrate is added‚ 5 ml water and 0.5 ml strong solution of lead acetate. Shake well and separate the filtrate. The clear filtrate is treated with equal volume of chloroform and evaporated to yield the extractive. The extractive is dissolved in glacial acetic acid and after cooling‚ 2 drops of ferric chloride solution are added. These contents are transferred to a test tube containing 2 ml conc. sulphuric acid. A reddish brown layer‚ acquiring bluish green color after standing is observed due to presence
Premium Heart Acetic acid Cardiology
droppers for mixing purposes and Bunsen burner‚ clay triangle‚ crucible and cover for the ignition test. The reagents used in this experiment are: copper nitrate‚ ethanol‚ ethanoic acid‚ diethyl ether‚ 5% HCl‚ concentrated sulphuric acid‚ litmus paper‚ acetic acid‚ sucrose‚ methylamine‚ benzoic acid‚ 5% NaOH‚ 15% HCl‚ butyl bromide‚ buteraldehyde‚ nitro phenol‚ propanone‚ 5% NaHCO3‚ and phenolphthalein. This experiment is quite simple but it requires proper handling of chemicals since the chemicals used
Premium Sulfuric acid Chemistry Functional group