The commercial hand-book 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 / [A. Normandy].

  • Normandy, A. (Alphonse), 1809-1864
Date:
1875
Catalogue details

Licence: Public Domain Mark

Credit: The commercial hand-book 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 / [A. Normandy]. Source: Wellcome Collection.

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    the alkali is perfectly neutralized, and the liquor contains the least excess of acid, the litmus paper turns red where touched with the wetted glass rod. The number of septems of the diluted acid that are required to neutralize the carbonate of sodium shows the number of septems of the acid that contain one-tenth part of Jive test atoms of sulphuric acid, or that quantity which will form ioo septems of solution of 5° The experiment must be repeated with great care, in order to be quite certain what the number is. Sup- pose it to be 40 septems. In that case all that is necessary to do to produce sulphuric acid of 50 is to put 40 measures of the diluted acid into a test mixer, and add as much water as dilutes the 40 measures to 100 measures. Imperial Liquid Measure, Divided Decimally. Gallon Deci- gallons Centi- gallons Milli- gallons Septems Avoirdupois weight of Water at 62° F. [Grains Pounds 1*0 IO- IOO* IOOO* 10000' 70000* IO* *1 I* 10* IOO* IOOO* 7000* I* *01 *1 I* IO* IOO* 700* *1 *OOI *OI *1 I' 10* 70■ *OI *0001 *OOI *01 *1 I* T *001 1 Quart . . =2500 Septems. 1 Pint . . =1250 Septems. 1 Centimetre Cube = 2-2 Septems. 1 Fluid Ounce = 62-5 Septems. 1 Cubic Inch = 36-06543 Septems. 1 Litre . =2-2 Decigallons. Table of Test Equivalents. Weight of • 1 Test Atom Weight of 5 Test Atoms 1. Acetic Acid .... hc2i-i3o2 60* 300- 2. Hydrochloric Acid ’ . HC1 36'5 182-5 3. Nitric Acid .... hno3 . 63' 315' 4. Oxalic Acid .... hco2 .. 45' 225- 5. Do. Crystallized . IIC0oH20 63' 3*5' 6. Sulphuric Acid hso2 49' 245' 7. Tartaric Acid (Cr.) iic2h2o3 75' 375' 8. Carbonic Acid co2 44' 220* 9. Ammonia .... nh3 . 17' 85- 10. Potash Hydrate . KHO . 56' 280- 11. Soda Hydrate NaHO . 40- 200* 12. Lime Hydrate CaHO . 37' 185- 13. Potassium Carbonate, 2^ atoms k2co, . 138- 345' 14. Sodium Carbonate, atoms 106 • 265-