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p-DCB is produced by chlorination of benzene using ferric chloride as a catalyst: . C 6 H 6 + 2 Cl 2 → C 6 H 4 Cl 2 + 2 HCl. The chief impurity is the 1,2 isomer.The compound can be purified by fractional crystallization, taking advantage of its relatively high melting point of 53.5 °C; the isomeric dichlorobenzenes and chlorobenzene melt well below room temperature.
Ear drops should only be used in the affected ear. Ear drops are usually used for a short duration of time. Make sure to only use it as prescribed. [7] Cotton buds should not be used to clean the inside of the ear since this can cause inflammation and make things worse. [7] Ear drops should not be used for a ruptured eardrum (a hole or tear in ...
Phenazone (INN and BAN; also known as phenazon, antipyrine (), antipyrin, [1] or analgesine) is an analgesic (pain reducing), antipyretic (fever reducing) and anti-inflammatory drug.
Pages for logged out editors learn more. Contributions; Talk; Paradichlorobenzene
Google Input Tools, also known as Google IME, is a set of input method editors by Google for 22 languages, including Amharic, Arabic, Bengali, Chinese, Greek ...
Ear drops are commonly used to treat swimmer's ear. Ear instillation is the process of introducing otic medication or other liquids into the ear canal . Proper care is needed in delivering such liquids.
Cerumenolytics are administered directly into the ear, which is a form of topical administration that can be specified as "ototopical." [3] [4] Generally, the use of a cerumenolytic involves instilling several drops of the product into the affected ear once or twice daily for a treatment duration of 3 to 5 days.
Prednisolone eye drops are used in conjunctivitis caused by allergies and bacteria, marginal keratitis, uveitis, endophthalmitis, which is an infection of the eye involving the aqueous humor, Graves' ophthalmopathy, herpes zoster ocular infection, inflammation of the eye after surgery, and corneal injuries caused by chemicals, radiation ...