EurekaMag.com logo
+ Site Statistics
References:
48,253,228
Abstracts:
22,798,842
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Spectrometrical discussion on accelerative mechanism of methanol in chromium chrome azurol s reaction


, : Spectrometrical discussion on accelerative mechanism of methanol in chromium chrome azurol s reaction. Acta Histochemica et Cytochemica 9(4): 306-314

An addition of methanol into the aqueous solution of chrome azurol S (CAS) accelerates the reaction of CAS with Cr. The mechanism of the accelerative effect of methanol was described spectrometrically. CAS has 4 chemical species, and the 3rd chemical species (in which 3 protons are released) is most liable to chelate Cr. In a high pH range, the 3rd chemical species increases in the solution, but at the same time an increase in hydroxy ion interrupts the reaction between CAS and Cr. Spectrometrical measurements indicate that the added methanol accelerates the dissociation of the 2nd chemical species of CAS in a low pH range and the reduction of the 4th chemical species in a high pH range. The 3rd chemcical species is highly concentrated in the solution, leading to an acceleration of the Cr-CAS reaction without any interruption caused on an increase of OH-.

(PDF 0-2 workdays service)

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 006460168

PDF Full Text: Submit


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Kato M., 1973: Characterization of anti cord factor antibody. Japanese Journal of Medical Science & Biology 26(1): 23-26

Kuroki, T., 1950: Study on the electric fishing-screen I On the selection of effective frequencies. The writer attempted to get more practical and useful effects by finding out the most suitable forms of electric waves, cycles and electric powers through electro-dynamical investigations of the electric fishing screen. In this paper, the cycle of...

Romashov, D. D., 1962: On radio-sensitivity of loach spermatozoa. On irradiation of loach spermatozoa the fertilization power of the spermatozoa is retained over a wide range of dosage (from 100 r to 1000 kr). Doses up to 200 kr do not cause a decrease fertility; even with 1000 kr up to 1% of the spermatozoa can...

Kveiborg, Marie; Kassem, Moustapha; Langdahl, Bente; Fink-Eriksen, Erik; Clark, Brian, F. C.; Rattan, Suresh, I. S., 1999: Telomere shortening during aging of human osteoblasts in vitro and leukocytes in vivo: Lack of excessive telomere loss in osteoporotic patients. We have compared the telomere length, as assessed by Southern analysis, of telomere restriction fragments (TRFs) generated by RsaI/HinfI digestion of genomic DNA in: (i) in vitro cultured human trabecular osteoblasts undergoing cellular aging; and...

Paz, Ar; Collischonn, W; Lopes-Da-Silveira, Al, 2006: Improvements in large-scale drainage networks derived from digital elevation models. This paper presents an improved algorithm for deriving drainage networks for coarse-gridded distributed hydrological models based on relatively fine resolution digital elevation models. The proposed algorithm aims to reproduce actual drainage netw...

Lorents, L. Y., 1951: The races of the nematode, Ditylenchus dipsad (Kuhn, 1858). Lorents, after analysing the biometrie measurements of 450 specimens of Ditylenchus dipsad from garlic and 125 specimens from onion, concludes that the measurements of the males and females in his material are smaller than those given by Goodey an...

W. H. Edwards; M. A. Stapanian; A. T. Stoneman, 2011: Precision of two methods for estimating age from burbot otoliths. Lower reproductive success and older age structure are associated with many burbot (Lota lota L.) populations that are declining or of conservation concern. Therefore, reliable methods for estimating the age of burbot are critical for effective as...

Anonymous, 2013: Duplicated filum terminale in the absence of split cord malformation a potential cause of failed detethering procedures. A duplicated filum terminale appears to be a rare finding in the absence of a split cord malformation. Herein, we discuss this finding and its potential dysembryology.We report two cases of duplicated filum terminale without split cord malformatio...

Jungmann E.; Waechtler M.; Schwedes U.; Usadel K.H.; Schoeffling K., 1986: The dopaminergic control of aldosterone secretion comparison of the effects of high dose metoclopramide haloperidol and bromocriptine on aldosterone levels and plasma renin activity in rats. Mantero, F Et Al Serono Symposia Publications From Raven Press, Vol 27 The Adrenal Gland And Hypertension Xvii+465p Raven Press: New York, N Y , Usa Illus 89-92, 1985

Guerra, J.; Ros, R. M.; Martinez-Sanchez, J. J.; Frey, W., 1993: Grimmia mesopotamica (Grimmiaceae, Musci) new to Europe. Grimmia mesopotamica Schiffn. is reported for the first time in Europe from Almeria (Spain). The species is illustrated and notes are given on its distribution and ecology.