Outlines of Proximate Organic Analysis: For the Identification, Separation, and Quantitative Determination of the More Commonly Occurring Organic Compounds |
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Page 10
... Starch , 177. Pectous Substances , 178. Pectose , 179. Pectin , 180. Pectic acid , 181. Parapectin , - 182. Parapectic acid , 183. Metapectin , 184. Metapectic acid , 185. Cellulose , 186. Nitrocellulose , PAGE . PARAGRAPH . PAGE ...
... Starch , 177. Pectous Substances , 178. Pectose , 179. Pectin , 180. Pectic acid , 181. Parapectin , - 182. Parapectic acid , 183. Metapectin , 184. Metapectic acid , 185. Cellulose , 186. Nitrocellulose , PAGE . PARAGRAPH . PAGE ...
Page 13
... Starch - 176 . Sugars - 187 to 190 . Albumenoids - 162 to 167 . Gelatin - 170 , 171 . VOLATILE . Acids : Benzoic - 30 . ( Chrysophanic ) -27 . Cinnamic - 31 . Quinotannic - 16 . Quinovic - 23 . Racemic - 7 . Tannic - 13 . Tartaric - 6 ...
... Starch - 176 . Sugars - 187 to 190 . Albumenoids - 162 to 167 . Gelatin - 170 , 171 . VOLATILE . Acids : Benzoic - 30 . ( Chrysophanic ) -27 . Cinnamic - 31 . Quinotannic - 16 . Quinovic - 23 . Racemic - 7 . Tannic - 13 . Tartaric - 6 ...
Page 27
... starch - paste be tinged blue by a slight addition of hundredth - normal solution of iodine ( 1 part iodine dissolved with potassic iodide in 100,000 parts aqueous solution ) , on adding a liquid containing tannic acid the blue color of ...
... starch - paste be tinged blue by a slight addition of hundredth - normal solution of iodine ( 1 part iodine dissolved with potassic iodide in 100,000 parts aqueous solution ) , on adding a liquid containing tannic acid the blue color of ...
Page 31
... starch ( e ) ; by not precipitating the alkaloids , and by its far weaker reducing power ( f ) ( distinction from pyrogallic acid also ) .— Gallic acid is determined , if free from tannic acids , by absorption in recently ignited oxide ...
... starch ( e ) ; by not precipitating the alkaloids , and by its far weaker reducing power ( f ) ( distinction from pyrogallic acid also ) .— Gallic acid is determined , if free from tannic acids , by absorption in recently ignited oxide ...
Page 32
... starch- paste , but it forms a precipitate with a mixture of gum - arabic and gelatin . f . Gallic acid does not reduce alkaline copper solution , but reduces salts of gold and silver , and quickly decolorizes perman- ganate solution ...
... starch- paste , but it forms a precipitate with a mixture of gum - arabic and gelatin . f . Gallic acid does not reduce alkaline copper solution , but reduces salts of gold and silver , and quickly decolorizes perman- ganate solution ...
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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