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Naphthalenecontinued Uses of naphthalene
Testing benzols in the laboratory
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according added alkali allowed ammonia ammonium apparatus bases benzene benzol boiling bottom calcium carbolic acid carried caustic cent Chem chloride coal coke colour completely compounds concentrated consists containing cooling cresols crude crystals decomposed described dilute dissolved distillation employed estimation excess filtered formed fraction gas-liquor gases Germany give heated hydrocarbons hydrogen iron latter lead less light lime liquid liquor manufacture means method mixed mixture naphtha naphthalene nitrate nitrogen obtained operation ordinary oxide passed patent phenol pipe portion precipitate prepared present pure quantity reaction receiver recovered remaining removed residue retort salts sample saturator separated shows soda sodium solution sometimes steam substances sulphate sulphide sulphuric acid taken takes temperature tons treated treatment tube usual vapours vessel volatile volume washing yield