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Paper chemicals designate a group of chemicals that are used for paper manufacturing, or modify the properties of paper. These chemicals can be used to alter the paper in many ways, including changing its color and brightness, or by increasing its strength and resistance to water. [1] The chemicals can be defined on basis of their usage in the ...
Stop bath is an acidic solution used for processing black-and-white photographic films, plates, and paper. It is used to neutralize the alkaline developer, thus halting development. [1] Stop bath is commonly a 2% dilution of acetic acid in water, though a 2.5% solution of potassium or sodium metabisulfite works just as well. [1]
A full roll of toilet paper Toilet roll and toilet roll holder; the paperboard center of a spent roll is visible on the holder.. Toilet paper (sometimes called toilet/bath/bathroom tissue, or toilet roll) [1] is a tissue paper product primarily used to clean the anus and surrounding region of feces (after defecation), and to clean the external genitalia and perineal area of urine (after ...
Cottonelle toilet paper. Cottonelle is an American brand of toilet paper produced by Kimberly-Clark.The company has made several different toilet paper types such as regular, Cottonelle Double, (Two-ply) Cottonelle Ultra, Cottonelle Aloe & E, Cottonelle Kids, and Cottonelle Extra Strength, and are currently sold in the United States and Australia under the Kleenex brand.
A weak acid cannot always be neutralized by a weak base, and vice versa. However, for the neutralization of benzoic acid (K a,A = 6.5 × 10 −5) with ammonia (K a,B = 5.6 × 10 −10 for ammonium), K = 1.2 × 10 5 >> 1, and more than 99% of the benzoic acid is converted to benzoate.
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neutralize acidic paper and add an alkaline reserve. produce a pH value between 6.8 and 10.4 that is evenly distributed throughout the book. should not cause any damage to adhesives, inks, or dyes. should not cause an odor or any change in the color of the paper. should not cause loss of pliancy or mechanical strength. [9]
Two capsules of smelling salts from a first-aid kit. A thin inner glass tube contains alcohol and ammonia; the outer layer is cotton and netting. When crushed, the liquid is released into the cotton, while the glass shards are retained inside. The ammonia-soaked cotton is waved in front of the nose for the treatment of fainting.