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Artificial tears. A subset of various brands of artificial tears displayed in a store. Specialty. ophthalmology. [edit on Wikidata] Artificial tears are lubricating eye drops used to relieve dryness and irritation of the ocular surface. [1] Dry eye syndrome (keratoconjunctivitis sicca) is a common ocular surface disorder and is characterized by ...
A formaldehyde releaser, formaldehyde donor or formaldehyde-releasing preservative is a chemical compound that slowly releases formaldehyde. Formaldehyde-releasers are added to prevent microbial growth and extend shelf life. [1] The intent of these compounds is that they release formaldehyde at levels that suppress microbial growth but ...
Ethoxyquin (EMQ) is a quinoline -based antioxidant used as a food preservative in certain countries and originally to control scald on pears after harvest (under commercial names such as "Stop-Scald"). [2] It is used as a preservative in some pet foods to slow the development of rancidity of fats. Ethoxyquin is also used in some spices to ...
Preservative. A preservative is a substance or a chemical that is added to products such as food products, beverages, pharmaceutical drugs, paints, biological samples, cosmetics, wood, and many other products to prevent decomposition by microbial growth or by undesirable chemical changes. In general, preservation is implemented in two modes ...
BHT is used as a preservative ingredient in some foods. With this usage BHT maintains freshness or prevents spoilage; it may be used to decrease the rate at which the texture, color, or flavor of food changes. [20] Some food companies have voluntarily eliminated BHT from their products or have announced that they were going to phase it out. [21]
1. Paper Couponing. No matter what method you employ, be mindful of the expiration date. Sort your coupons frequently to find those that expire in the next 10 days or two weeks, and dedicate a ...
Benzalkonium chloride is a frequently used preservative in eye drops; typical concentrations range from 0.004% to 0.01%. [16] Stronger concentrations can be caustic [ 17 ] and cause irreversible damage to the corneal endothelium .
chelsea green publishing white river junction, vermont the end of america letter of warning to a young patriot naomi wolf eoa2 final pages 7/27/07 12:05 pm page i
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