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Author : Russell Smith McBridge
Publisher : Unknown
Page : 32 pages
File Size : 49,5 Mb
Release : 1913
Category : Potassium permanganate
ISBN : UOM:39015086558171
Author : R. S. Mcbride
Publisher : Forgotten Books
Page : 36 pages
File Size : 40,7 Mb
Release : 2017-11-20
Category : Science
ISBN : 033151687X
Excerpt from Standardization of Potassium Permanganate Solution by Sodium Oxalate The water and sulphuric acid employed were frequently tested for reducing matter and in each case were shown to be free from appreciable amounts Of such impurities. The manganous sulphate was similarly tested for reducing and oxidizing influence and shown to be satisfactory. TO purify the air used for the tests Of Tables VI and VII, it was passed through cotton wool to remove dust and grease, bubbled through a solution Of potassium hydroxide to take out any acid vapors present, and then through, solutions of chromic acid and potassium permanganate. The purified air had no detectable reducing efiect upon dilute solutions of permanganate under the conditions of titration. The carbon dioxide used for the tests of Table VI was taken from a cylinder of the commercial liquid and passed through water, chromic acid, and permanganate solution before use. An analysis showed the presence of about 3 per cent Of methane; but this gas seemed to have only a very slight reducing action on the permanganate in dilute solution, so that the results of the series in which it was used can be regarded as but slightly less reliable than the series in Table VII. For this latter group Of tests, pure carbon dioxide was made from acid and soda. This source gave a gas which had no detectable reducing action under the conditions Of its use. The potassium permanganate used for most Of the work was a sample Of good quality which had been made up in normal solution for over Six months before filtration and dilution to tenth normal strength for use. The diluted solution was filtered frequently through asbestos to insure freedom from precipitated manganese dioxide. For the series Of tests reported in Table IV, b, a second permanganate was used. In this case the strong solution was boiled for a few minutes, cooled, filtered, and diluted to tenth normal strength. For the series of Table VII still a different permanganate was employed, this stock being prepared in the same manner as the main solution. About 40 grams Of solution were used for each titration. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author : United States. Bureau of Standards
Publisher : Unknown
Page : 50 pages
File Size : 44,8 Mb
Release : 1912
Category : Chemistry
ISBN : UOM:39015077291840
Author : United States. Bureau of Standards
Publisher : Unknown
Page : 12 pages
File Size : 43,5 Mb
Release : 1930
Category : Oxalates
ISBN : UIUC:30112106781849
Author : Pradyot Patnaik
Publisher : CRC Press
Page : 608 pages
File Size : 44,8 Mb
Release : 2002-01-01
Category : Science
ISBN : 1420050605
Serving as both a reference and a textbook, Handbook of Environmental Analysis is the first exhaustive treatment of the analysis of toxic pollutants in the environment. Areas addressed include:
Author : Anonim
Publisher : ASTM International
Page : 261 pages
File Size : 40,9 Mb
Release : 2024-05-23
Category : Electronic
ISBN : 8210379456XXX
Author : United States. National Bureau of Standards
Publisher : Unknown
Page : 56 pages
File Size : 53,7 Mb
Release : 1913
Category : Chemistry
ISBN : UIUC:30112106920488
Author : Anonim
Publisher : Unknown
Page : 768 pages
File Size : 53,7 Mb
Release : 1910
Category : Weights and measures
ISBN : UOM:39015035418212
Author : United States. Bureau of Standards
Publisher : Unknown
Page : 788 pages
File Size : 46,6 Mb
Release : 1913
Category : Physics
ISBN : UOM:39015014125762
Contains results of investigations, researches, etc., pertaining to scientific, technical and manufacturing interests of the country.
Author : Evelyn M. Rattenbury
Publisher : Elsevier
Page : 200 pages
File Size : 47,6 Mb
Release : 2016-06-06
Category : Science
ISBN : 9781483181066
Introductory Titrimetric and Gravimetric Analysis discusses the different types of titration and the weighing of different solutions in solid form. Coverage is made on acid- base titration, argentometric titrations, and oxidation- reduction titrations. Iodometric titrations and complexometric titrations are also explained. Extensive discussion on each of the titration method, along with some examples and laboratory experiments, is given. The process of weight measurement of damp powder is one example of the experiments. The book is a manual that guides a student to the correct ways of conducting an experiment made on such solutions as sodium hydroxide using hydrochloric acid and oxalic acid. Outcome of such experiments in terms of composition, weight of solutions, and measurement of pressure in certain environment is tabulated and briefly explained. Logarithms and antilogarithms are included at the end of the book. The text will serve as a good laboratory manual for students preparing for science examination as well as for chemists and chemical engineers.
Author : United States. Environmental Protection Agency. Office of Pesticide Programs. Chemical and Biological Investigations Branch,Association of Official Analytical Chemists
Publisher : Association of Official Analytical Chemist
Page : 1466 pages
File Size : 49,9 Mb
Release : 1982
Category : Science
ISBN : MINN:31951D00185027R
Author : C. Parameshwara Murthy
Publisher : New Age International
Page : 660 pages
File Size : 47,6 Mb
Release : 2008
Category : Electronic
ISBN : 8122407420
Cherla Parameswara Murthy Has Been Teaching At Osmania University, Hyderabad For 22 Years. He Is Associated With Many International Research Laboratories. He Worked At The University Of Karlsruhe, W. Germany (1980-81), At The Max-Planck Institute For Radiation Chemistry Mulheim, W. Germany, (1985-86), At The Ohio State University, Columbus, U.S.A. (1987-88) And At Hahn-Meitner Institute, Berlin, Germany During 1993. He Had Many Publications In The National And International Journals.Syed Fazal Mehdi Ali, After Receiving His M.Sc. From Marathwada University (1970), Was Engaged In Teaching The U.G & P.G. Courses At Anwarul Uloom College, Affiliated To Osmania University. After His Voluntary Retirement, He Is Now Serving As The Principal Of Rishi Degree College. He Had Published A Few Research Papers In The Field Of Complexes Of Oxygen And Phophorous Donor Ligands With Rare Earths.D. Ashok Obtained His Ph.D. From Osmania University In 1987. Since Then He Has Been Serving In The Same University And Nourishing His Research Interest In The Field Of Natural Products And Synthetic Organic Chemistry. He Has 20 Papers To His Credit.
Author : United States. Office of Experiment Stations
Publisher : Unknown
Page : 1206 pages
File Size : 48,8 Mb
Release : 1916
Category : Agricultural experiment stations
ISBN : HARVARD:HC2BR2
Author : U.S. Office of Experiment Stations,United States. Agricultural Research Service,United States. Office of Experiment Stations
Publisher : Unknown
Page : 1066 pages
File Size : 51,8 Mb
Release : 1915
Category : Agricultural experiment stations
ISBN : UOM:39015075062730
Author : K. M. Sappenfield,G. Marinenko,John Louis Hague
Publisher : Unknown
Page : 102 pages
File Size : 46,6 Mb
Release : 1972
Category : Arsenic trioxide
ISBN : UOM:39015086505719