Bulletin - Bureau of Chemistry, Issues 116-124U.S. Government Printing Office, 1908 |
From inside the book
Results 1-5 of 55
Page 38
... oxid ; colorless ; green with KMnO4 ; one and one - fourth hours ' di- gestion . Same as above except three hours ' di- ì gestion . Mercury ; colorless ; green with KMnO4 ; five hours ' digestion ; distilled in cur- rent of steam ...
... oxid ; colorless ; green with KMnO4 ; one and one - fourth hours ' di- gestion . Same as above except three hours ' di- ì gestion . Mercury ; colorless ; green with KMnO4 ; five hours ' digestion ; distilled in cur- rent of steam ...
Page 43
... oxid or its equivalent in metallic mercury may also be added , previously to the addition of the potassium sulphate , but if mercury be used potassium sulphid must be used , as in the Kjeldahl method , in the distillation . " A general ...
... oxid or its equivalent in metallic mercury may also be added , previously to the addition of the potassium sulphate , but if mercury be used potassium sulphid must be used , as in the Kjeldahl method , in the distillation . " A general ...
Page 57
... oxid gave accurate results with all samples , there being no contamination of the precipitate with organic or with mineral matter , as is often the case with molasses . Effect of inversion of sucrose on the determination of lactose 57.
... oxid gave accurate results with all samples , there being no contamination of the precipitate with organic or with mineral matter , as is often the case with molasses . Effect of inversion of sucrose on the determination of lactose 57.
Page 59
... oxid , which we then deduct from the copper oxid obtained in the analysis . In our experience thus far the correction has been from 12 to 15 milligrams by the Soxhlet method , and 8 to 12 milligrams by the Walker method on the charges ...
... oxid , which we then deduct from the copper oxid obtained in the analysis . In our experience thus far the correction has been from 12 to 15 milligrams by the Soxhlet method , and 8 to 12 milligrams by the Walker method on the charges ...
Page 73
... oxid ( Cu2O ) , and the lowest result by the Low method of titration . This is due to the contamination of the cuprous oxid with slight amounts of organic and mineral matter . With products of very low purity it is always safer to make ...
... oxid ( Cu2O ) , and the lowest result by the Low method of titration . This is due to the contamination of the cuprous oxid with slight amounts of organic and mineral matter . With products of very low purity it is always safer to make ...
Contents
7 | |
16 | |
22 | |
28 | |
35 | |
44 | |
53 | |
59 | |
66 | |
76 | |
81 | |
87 | |
95 | |
105 | |
114 | |
123 | |
129 | |
137 | |
4 | |
20 | |
26 | |
50 | |
7 | |
13 | |
51 | |
58 | |
64 | |
78 | |
85 | |
92 | |
100 | |
110 | |
120 | |
126 | |
136 | |
5 | |
30 | |
38 | |
48 | |
56 | |
Other editions - View all
Common terms and phrases
acetate adulterated Agricultural alkaline alkaloidal ammonia amount amyl alcohol analysis associate referee average barley benzoate benzoic acid boiling bottle Bureau of Chemistry calcium carbon cent Chem chemical chemists chlorid citral color committee containing dairy determination digestion dilute distilled drug ether evaporated Experiment Station extract fed organic phosphorus feeding fertilizer filter filtrate flask grains grams heat hydrochloric acid hydroxid inorganic juice ketchup label Laboratory lecithin lentiscus less magnesium malt manufacture mealy milk misbranded mixture nitric acid nitrogen nutritive ratio oats official method oxid percentage phosphate phosphoric acid phosphorus polarization potash potassium pounds precipitate production value protein protein content pure quantity reagent recommended residue results obtained salicylic acid salts samples sodium soil soluble solution starch subacetate substance sucrose sugar sulphuric acid sumac temperature tion titration urine wash Washington weight wine
Popular passages
Page 31 - ' misbranded, ' ' as used herein, shall apply to all drugs, or articles of food, or articles which enter into the composition of food, the package or label of which shall bear any statement, design or device regarding such article, or the ingredients or substances contained therein which shall be false or misleading in any particular...
Page 3 - Second. In the case of articles labeled, branded, or tagged so as to plainly indicate that they are compounds, imitations, or blends, and the word "compound," "imitation,
Page 68 - In the case of mixtures or compounds which may be now or from time to time hereafter known as articles of food, under their own distinctive names, and not an imitation of or offered for sale under the distinctive name of another article, if the name be accompanied on the same label or brand with a statement of the place where said article has been manufactured or produced.
Page 37 - In the case of food: (1) If any substance or substances have been mixed with it, so as to lower or depreciate, or injuriously affect its quality, strength, or purity; (2) If any inferior or cheaper substance or substances have been substituted wholly or in part for it; (3) If any valuable or necessary constitutent or ingredient has been wholly or in part abstracted from it...
Page 45 - Fourth. If the package containing it, or its label, shall bear any statement, design, or device, regarding the ingredients or the substances contained therein, which statement, design, or device shall be false or misleading in any particular.
Page 68 - If the package containing it or its label shall bear any statement, design or device regarding the ingredients or the substances contained therein, which statement, design or device shall be false or misleading in any particular; provided, that an article of food which does not contain any added poisonous or deleterious ingredients...
Page 67 - If the contents of the package as originally put up shall have been removed, in whole or in part, and other contents shall have been placed in such package, or if...
Page 67 - If it be labeled or branded so as to deceive or mislead the purchaser, or purport to be a foreign product when not so, or if the contents of the package as originally put up shall have been removed, in whole or in part, and other contents shall have been placed in such package...
Page 3 - Second. If any substance has been substituted wholly or in part for the article. Third. If any valuable constituent of the article has been wholly or in part abstracted.
Page 69 - Said guaranty, to afford protection, shall contain the name and address of the party or parties making the sale of such articles to such dealer, and in such case said party or parties shall be amenable to the prosecutions, fines, and other penalties which would attach, in due course, to the dealer under the provisions of this Act.