Phenolphthalein ( feh-NOL(F)-thə-leen) is a chemical compound with the formula C20H14O4 and is often written as HIn, HPh, phph or simply Ph in shorthand notation. Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions. It belongs to the class of dyes known as phthalein dyes.
Phenolphthalein is slightly soluble in water and usually is dissolved in alcohols for use in experiments. It is a weak acid, which can lose H ions in solution. The nonionized phenolphthalein molecule is colorless and the double deprotonated phenolphthalein ion is fuchsia. Further loss of proton in higher pH occurs slowly and leads to a colorless form. Phenolphthalein ion in concentrated sulfuric acid is orange red due to sulfonation.
Doberman
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Breed of dog, named for the creator of the breed, Louis Dobermann. Mr. Dobermann was a tax collector in Germany and wanted a good protection dog. Dobermans are truly a man-made breed. Some of the breeds thought to have contributed to the Doberman are German Pinschers, Manchester terriers, Weimeraners, and [Rottweiler].
Doberman meaning & definition 1 of Doberman.
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A large sized, short-haired, A.K.C-registered breed. First developed in Germany by the tax collecter Louis Dobermann. Dobermans are very clingy to their owners and make a loyal, well tempered dog if raised correctly. Could become aggressive if not given proper care and training. The tail is traditionally docked from puppyhood and ears may be cropped or left natural. Comes in red, fawn, black, or blue with either rust or tan markings. Some are also born pure white which is a fault in the show ring. Dobermans are prone to heart conditions as well as color deformity. Also a very intelligent breed that needs mental excercise as well as physical.
Doberman meaning & definition 2 of Doberman.
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one big, badazz dog dat guards yo house an tears up any ni99a dat try to come in yo yard
Doberman meaning & definition 3 of Doberman.
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Penis prank; the reverse view of the [mangina].
Doberman meaning & definition 4 of Doberman.
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a clumsy or dozy person who continues to commit foolish acts
Doberman meaning & definition 5 of Doberman.
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a type of fairly large dog with short, dark-colored hair and a strong bite, kept as a pet and as a guard dog
Doberman meaning & definition 6 of Doberman.