Quality Analysis of Selected Toilet Soaps in Saudi Arabia Markets

Asian Journal of Applied Chemistry Research ◽

10.9734/ajacr/2020/v7i230177 ◽

2020 ◽

pp. 7-14

Author(s):

E. E. Shehata

Keyword(s):

Saudi Arabia ◽

Fatty Acid ◽

Free Fatty Acid ◽

Limited Range ◽

Quality Analysis ◽

Fatty Matter ◽

Caustic Alkali ◽

Ph Values ◽

Free Caustic Alkali ◽

Total Fatty Matter

Soap is sodium or potassium salt of fatty acid produced by saponification reaction. The physicochemical properties of soaps determine their quality and hence determine their efficiency. Four toilet soaps from local markets in Saudi Arabia were analyzed for moisture, pH, free caustic alkali or free fatty acid, total fatty matter and insoluble matter in alcohol. The percentage of the moisture ranged between (3.0534±0.1782 -5.1235±0.4891 %), total fatty matter (79.6907± 0.0534 - 94.8253 ± 0.0622), insoluble matter in alcohol (0.7939± 0.0134 - 1.0368± 0.0234% (and there is no excess free caustic alkali. However, the pH values between (8.715±0.0219 - 9.745±0.0212). This study showed that the percent of moisture, free caustic alkali, insoluble matter, total fatty matter and pH values for different samples found to be in limited range. Finally, the percentage of free fatty acid are (1.0433±0.0813 -1.4107±0.1731%). The soaps analyzed proved to be of high quality and meet the standard values.

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Effect of inert atmosphere in the determination of free fatty acid or free caustic alkali and unsaponified material in soap

Journal of the American Oil Chemists Society ◽

10.1007/bf02639667 ◽

1955 ◽

Vol 32 (10) ◽

pp. 531-532

Author(s):

E. W. Blank ◽

E. Emendorfer

Keyword(s):

Fatty Acid ◽

Free Fatty Acid ◽

Inert Atmosphere ◽

Caustic Alkali ◽

Free Caustic Alkali

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Quality Analysis for Different Samples of Fats

Asian Journal of Chemical Sciences ◽

10.9734/ajocs/2020/v8i419055 ◽

2020 ◽

pp. 56-63

Author(s):

E. E. Shehata

Keyword(s):

Saudi Arabia ◽

Fatty Acid ◽

Melting Point ◽

Free Fatty Acid ◽

Acid Value ◽

Fats And Oils ◽

Quality Analysis ◽

Melting Points ◽

Peroxide Values

Fats and oils are essential in human nutrition, and an important component of many foods where they significantly contribute to product quality. The quality of different samples of fats from various companies in Saudi Arabia was determined based on its physicochemical properties such as melting point, moisture, acid value, free fatty acid, peroxide value and insoluble impurities. Four samples were selected randomly as goody, hanaa, fork & spoon and Mazola. The percentage of the moisture was found to be 0.167±0.0438, 0.1045±0.0021, 0.061±0.0141 and 0.101±0.0339%, respectively for goody, hanaa, fork & spoon and mazola. The acid values were found to be 0.1402, 0.148, 0.151 and 0.220 mg NaOH/g for goody, hanaa, fork & spoon, and mazola, respectively. The free fatty acid was found to be 0.0989, 0.105, 0.106 and 0.155% for goody, hanaa, fork & spoon and mazola, respectively. The peroxide values were found to be 4.25±0.0141, 3.245±0.0353, 1.145±0.1485 and 5.15±0.0707 m.eqO2/Kg for goody, hanaa, fork &spoon, and mazola, respectively. The percent of insoluble impurities was found to be 1.61, 0.71, 1.32 and 1.33% for goody, hanaa, fork & spoon and Mazola, respectively. The melting points were found to be 40±0, 35±0, 33.5±0.707 and 39±0°C for goody, hanaa, fork & spoon, and Mazola, respectively.

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Characterization and stability study of some pharmaceutical ointments

Analele Universitatii Ovidius Constanta - Seria Chimie ◽

10.2478/v10310-012-0014-5 ◽

2012 ◽

Vol 23 (1) ◽

pp. 87-91

Author(s):

Viorica Popescu ◽

Alina Soceanu ◽

Simona Dobrinas ◽

Gabriela Stanciu

Keyword(s):

Stability Study ◽

Fatty Matter ◽

Volatile Substances ◽

Ph Values ◽

Acidity Index ◽

Anti Inflammatory ◽

Type Water ◽

Total Fatty Matter ◽

Antibiotic Ointment

Abstract In the present study we have determined some characteristics (aspect, odor, solubility, emulsion type, water and volatile substances content, total fatty matter, saponification index, ester index) for three pharmaceutical ointments belonging to the group of non-steroidal anti-inflammatory: Diclac, Ketonal, Indometacin and one antibiotic ointment for ophthalmic use: Ophtagram. In order to achieve stability study of studied ointments, the pH, the acidity index, the peroxide index and the iodine index were determined over a year every three months. After 9 months from the opening of the tubes, analytical determinations have shown that pH values, acidity, peroxide and iodine indexes no longer fit to the values recommended for medical use, which confirms the directions available on the package.

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