The petroleum acids and bases

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Theory of Acids and Bases

The Water or Arrhenius Theory was widely accepted up to the early years of this century . It defines an acid as a hydrogen compound ionizing in water to give hydrogen ions, and a base as a hy<iToxyl compound which gives hydroxide ions in water. The neutralization reaction between an acid and a base produces a salt and water only: HA(ac id) + BOH(base) ""' BA(salt) + H 20(water) and the salts so...

متن کامل

Precise Coulometric Titration of Acids and Bases

Apparatus and techniques a re dc~cribed for t he t itration of ac ids a nd. bases by constantcurrent coulometry. The precision nnd accuraey of t he method aI~e JndLcated by tl traLlons of benzoic acid, potass ium acid pMhalate, adLpiC aCld, hydroc~lo l'l c aCid, ~nd sod ium eal'bonate. Standard deviations of ± 0.003 p er cent have been obtaIned which LndlCatp. that the reliabi li ty of the meth...

متن کامل

The Coulometric Titration of Acids and Bases in Dimethylsulfoxide Media

The coulometric titration of 20-200 peq of acids and bases in DMSO media is described. In the titration of bases, the electro-oxidation of hydrogen at a platinized platinum electrode is used as the source of protons. The conditions for 100 % current efficiency at this electrode are low current density to avoid passivity and regular treatment of the electrode with potassium dichromate-sulfuric a...

متن کامل

The history of blood gases, acids and bases

cross-reference between papers. Worse, editorial indulgence has left several of them substantially overlapping in scope, if not mutually contradictory-so that Nutton does much of the job of three other contributors rather more cogently than they can themselves. The weakness of these three emphasizes a more general failure to match painstaking scholarship with thoughtful interpretation. Contente...

متن کامل

Investigation of Organic Complexes of Imidazolines Based on Synthetic Oxy- and Petroleum Acids as Corrosion Inhibitors

The mixture of Synthetic Petroleum Acids (SPA) and oxyacids (OSPA) have been synthesized on the basis of naphthenic-paraffinic hydrocarbons separated from 217-349°C fractions of Azerbaijan oils in the presence of the salts of Natural Petroleum Acids (NPA). The acid number of the obtained (SPA+OSPA) was 165 mgKOH/g, the yield was 40%. Imidazoline derivatives have been synthesized based on the mi...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Chemical Education

سال: 1956

ISSN: 0021-9584,1938-1328

DOI: 10.1021/ed033pa466