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Effervescent or carbon tablets are tablets which are designed to dissolve in water and release carbon dioxide. The carbon dioxide is generated by a reaction of a compound containing bicarbonate , such as sodium bicarbonate or magnesium bicarbonate , with an acid such as citric acid or tartaric acid .
Alka-Seltzer is an effervescent antacid and pain reliever owned by Bayer since 1978. First marketed by the Dr. Miles Medicine Company of Elkhart, Indiana, United States, Alka-Seltzer contains three active ingredients: aspirin (acetylsalicylic acid or ASA), sodium bicarbonate, and anhydrous citric acid. [1]
In the laboratory, a common example of effervescence is seen if hydrochloric acid is added to a block of limestone.If a few pieces of marble or an antacid tablet are put in hydrochloric acid in a test tube fitted with a bung, effervescence of carbon dioxide can be witnessed.
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Chemical formula. CClF 2 CCl 2 F Molar mass: 187.37 g·mol −1 Appearance Colorless liquid Odor: like carbon tetrachloride [1] Density: 1.56 g/mL Melting point:
In the Richards building, laboratories are housed in three towers attached in pinwheel formation to a central fourth tower that houses mechanical systems, research animals, stairs and elevators. Each laboratory tower has eight floors, each of which is a 45-foot (14 m) square that is entirely free of stairs, elevators and internal support columns.
Linear alkylbenzenes (sometimes also known as LABs) are a family of organic compounds with the formula C 6 H 5 C n H 2n+1. Typically, n lies between 10 and 16, although generally supplied as a tighter cut, such as C 12-C 15, C 12-C 13 and C 10-C 13, for detergent use. [1] The C n H 2n+1 chain is unbranched.
The demise of the iconic Tower Records retail chain in 2006 was in many ways the final nail in the coffin of the 20th century music business model, but as vinyl sales unexpectedly revived over the ...