Chemical News and Journal of Industrial Science, Volúmenes31-32Chemical news office, 1875 |
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Página 3
... employed . In order to obtain a very high degree of rarefaction , with- out the trouble and uncertainty attending the use of an ordinary air - pump , it was necessary to have the balance sufficiently small to enable it to be exhausted ...
... employed . In order to obtain a very high degree of rarefaction , with- out the trouble and uncertainty attending the use of an ordinary air - pump , it was necessary to have the balance sufficiently small to enable it to be exhausted ...
Página 16
... employed in place of caustic soda , and yet neither of these alkalies could be found in the distillate . The aromaly , however , was soon explained : -On substituting bent glass tubing in place of the glass and india - rubber found so ...
... employed in place of caustic soda , and yet neither of these alkalies could be found in the distillate . The aromaly , however , was soon explained : -On substituting bent glass tubing in place of the glass and india - rubber found so ...
Página 21
... employed . It is then filtered , the vessel and filter are well washed , and with the standard solution of soda the quantity of acetic acid produced by the reaction is determined . Action of Bromine upon Anhydrous Chloral . - A ...
... employed . It is then filtered , the vessel and filter are well washed , and with the standard solution of soda the quantity of acetic acid produced by the reaction is determined . Action of Bromine upon Anhydrous Chloral . - A ...
Página 22
... employ for and not- defecation a dose of lime , so as to saturate the juice , To keep the defecated alkaline juice ... employed , and precipitates the lime . The application of heat expels the ammonia . Ex- cess of the reagents must be ...
... employ for and not- defecation a dose of lime , so as to saturate the juice , To keep the defecated alkaline juice ... employed , and precipitates the lime . The application of heat expels the ammonia . Ex- cess of the reagents must be ...
Página 23
... employed . The experiments were first tried with the balance - tube full of air , cold being applied either above or below the pith ball ; a lump of ice generally produced an upward movement of the pith , but it was very faint , and ...
... employed . The experiments were first tried with the balance - tube full of air , cold being applied either above or below the pith ball ; a lump of ice generally produced an upward movement of the pith , but it was very faint , and ...
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Términos y frases comunes
acetic acid action adulterated alcohol alkali alum alumina ammonia amount analysis aniline anthracen apparatus appears applied baryta Bill body boiling calcium carbonic acid cent Chemical Notices Chemistry chemists chloride chrysene clause colour compound containing copper crystalline crystals decomposed dilute dissolved distilled ether evaporation experiments filter filtrate gases give glass grms heat hydrate hydrochloric acid hydrogen Improvements insoluble iodide iron liquid London magnesia magnet manufacture matter mercury metallic method methyl milk mineral mixed mixture nitrate nitric acid nitrogen Notices from Foreign obtained ordinary oxalate oxide oxygen paper patent phosphate phosphoric acid plane platinum potash potassium powder precipitate present produced proportion Public Analysts pure pyrites quantity residue salts sample sesquioxide silicates silver Society of Public sodium solid soluble solution substance sugar sulphate sulphide sulphuric acid tartaric tartaric acid temperature tion tube washed weight whilst wine zinc
Pasajes populares
Página 93 - The person purchasing any article with the intention of submitting the same to analysis shall, after the purchase shall have been completed, notify to the seller or his agent selling the article his intention to have the same analysed by the Public Analyst, and shall offer to divide the article into three parts to be then and there separated, and each part to be marked and sealed, or fastened up in such manner as its nature will permit, and shall, if required to do so, deliver one of the parts to...
Página 127 - No person shall sell to the prejudice of the purchaser any article of food or any drug which is not of the nature, substance, and quality of the article demanded by such purchaser...
Página 226 - No person shall, with the intent that the same may be sold in its altered state without notice, abstract from an article of food any part of it so as to affect injuriously its quality, substance, or nature...
Página 107 - I, the undersigned, public analyst for the do hereby certify that I received on the day of 18 , fromf , a sample of for analysis (which then weighed]: ), and have analysed the same, and declare the result of my analysis to be as follows...
Página 75 - Chemical Technology, or Chemistry in its Applications to the Arts and Manufactures. By THOMAS RICHARDSON and HENRY WATTS.
Página 225 - No person ahall, except for the purpose of compounding as hereinafter described, mix, colour, stain, or powder, or order or permit any other person to mix, colour, stain or powder, any drug with any ingredient or material so as to affect injuriously the quality or potency of such drag, with intent that the same may be sold in that state...
Página 238 - ... of CHEMICAL ANALYSIS ; or Practical Instructions for the determination of the Intrinsic or Commercial Value of Substances used in Manufactures, in Trades, and in the Arts. By A. NORMANDY, Author of "Practical Introduction to Rose's Chemistry," and Editor of Rose's "Treatise on Chemical Analysis.
Página 92 - WHEREAS it is desirable that the Acts now in force relating to the adulteration of food should be repealed, and that the law regarding the sale of food and drugs in a pure and genuine condition should be amended: Be it therefore enacted by the Queen...
Página 94 - ... days next after such conviction, with two sufficient sureties, conditioned to try such appeal, and to be forthcoming to abide the judgment and determination of the court at such general or quarter sessions, and to pay such costs as shall be by such...
Página 272 - Committees for the several Sections before the beginning of the Meeting. It has therefore become necessary, in order to give an opportunity to the Committees of doing justice to the several communications, that each Author should prepare an Abstract of his Memoir, of a length suitable for insertion in the published Transactions of the Association, and that...