By John Toedt; Darrell Koza; Kathleen Van Cleef-Toedt
Not only tables of arcane symbols and numbers, yet essays for basic readers clarify the parts and their motion in such items as soaps and laundry, cosmetics and toilet, overall healthiness and clinical, child, cleansing, lights, universal family and garden, car and basic fix, and place of work provides. Toedt (physical sciences), Darrell Koza (chemistry, either, japanese Connecticut kingdom U.) and Kathleen van Cleef-Toedt (physiology and neurobiology, U. of Connecticut) additionally conceal such universal fabrics as paper, plastic, cement, and spray paint. The appendix units out protocols for laboratory routines.
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Additional info for Chemical Composition of Everyday Products
Sample text
Secondary components added may include materials such as zinc oxide (zincite mineral), calcium carbonate (chalk; limestone salt), titanium dioxide (white opaque powder), or cornstarch. These secondary components may provide additional skin protection, cover, and oil-absorption properties to the product. Compact or pressed face powders are wet by binders and emollients that also increase application ease and might include mineral oil, nylon-12 (petrochemical), dimethicone (silicone), glycerin, lauroyl lysine, 34 CHEM I CAL COMP OS I T I ON OF E V E R Y D A Y P R O D U C T S or phenyl trimethicone.
Bleaches In general, all bleaches are oxidizing agents, which are used to whiten and brighten fabrics and assist in the removal of challenging stains. Some types of fabric stains are bound so tightly in place that they cannot be easily dissolved and must be destroyed instead. The colors of such difficult stains are often associated with weakly bound electrons, such as those involved in double bonds between atoms. Double bonds can give organic molecules their colors, and groups of atoms that give rise to color in molecules are called chromophores.
Eccrine glands are distributed throughout most of the skin and are highly concentrated on the palms, soles, forehead, face, and axillae (armpits). , sodium, potassium, and chloride), lactic acid, ascorbic acid, amino acids, urea, uric acid, ammonia, and glucose. This secretion tends to have no odor, and the body may be generally cooled after the evaporation of skin surface water from the eccrine-based sweat. , Staphylococcus species) may act on perspiration residue and sebum (natural body oil) to produce unpleasant odiferous products such as short-chain fatty acids and amines.