Outlines of Proximate Organic Analysis: For the Identification, Separation, and Quantitative Determination of the More Commonly Occurring Organic Compounds |
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Page 20
... filtrate being neutralized by acetic acid . In either case , the carefully neutralized and not very dilute solution is treated with a slight excess of exactly neutral solution of acetate of barium , and a volume of 95 per cent . alcohol ...
... filtrate being neutralized by acetic acid . In either case , the carefully neutralized and not very dilute solution is treated with a slight excess of exactly neutral solution of acetate of barium , and a volume of 95 per cent . alcohol ...
Page 25
... filtrate ) . The precipitate is decomposed , in water , with hydro- sulphuric acid gas , and the filtrate therefrom is concentrated ( and acidulated with hydrochloric acid ) to crystallize the meconic acid . The crystals are purified by ...
... filtrate ) . The precipitate is decomposed , in water , with hydro- sulphuric acid gas , and the filtrate therefrom is concentrated ( and acidulated with hydrochloric acid ) to crystallize the meconic acid . The crystals are purified by ...
Page 29
... filtrate and washings are brought to the exact bulk of the original solution and to the standard temperature . The former specific gravity minus the latter , and plus one , equals the specific gravity indicating the per cent . of tannin ...
... filtrate and washings are brought to the exact bulk of the original solution and to the standard temperature . The former specific gravity minus the latter , and plus one , equals the specific gravity indicating the per cent . of tannin ...
Page 34
... filtrate treated with concentrated sulphuric acid to precipitate the acid sought ; the precipitate is washed on a filter with dilute sulphuric acid and pressed between paper . It may then be dissolved in water ; the solution treated ...
... filtrate treated with concentrated sulphuric acid to precipitate the acid sought ; the precipitate is washed on a filter with dilute sulphuric acid and pressed between paper . It may then be dissolved in water ; the solution treated ...
Page 36
... filtrate , it is obtained in impure , yellowish mass . 10 21. BOHEIC ACID . CH , O. Boheatannic Acid . Amor- phous , pale - yellow solid , caking by exposure to the air , melting at 100 ° C. to a waxy mass , very soluble in water and ...
... filtrate , it is obtained in impure , yellowish mass . 10 21. BOHEIC ACID . CH , O. Boheatannic Acid . Amor- phous , pale - yellow solid , caking by exposure to the air , melting at 100 ° C. to a waxy mass , very soluble in water and ...
Common terms and phrases
absolute alcohol acetate of lead acetic acid acidulated alcoholic solution alkalies alkaloids ammonia ammonium amylic alcohol anhydrous anilin aqueous alkalies barium benzole bisulphide of carbon blue boiling brown Butyric calcium cent chloral hydrate chloride chloroform color colorless concentrated sulphuric acid crystals decomposed Dextrin digestion dissolves distillation distinction ether fat acids ferric filter filtrate formed formic acid freely soluble gallic acid Gelatin glucose glycerin grams grav heat hydrochloric acid insoluble iodine lactose liquid melting mercuric methylic alcohol mixture naphtha Narceina neutral nitric acid odor ordinary temperatures oxalic oxide permanganate petroleum naphtha potassio cupric potassium precipitate prisms residue resin separated slight slightly soluble slowly solid solu soluble soluble in alcohol soluble in cold soluble in ether soluble in water Spar'g sparingly soluble spec starch Strychnia Sucrose sulphate sulphuric acid tannic acid tartrate taste tion turbid valerate vapor Veratria violet volatile oils washed water solution yellow yellowish
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