The determination of the titre of ascorbic acid standard solutions

Abstract

A new method for the determination of the titre of ascorbic acid standard solutions employing potassium dichromate as a primary standard has been developed. In a pyrophosphate medium, the pyrophosphate complex of divalent manganese is oxidized by dichromate to the pyrophosphate complex of tervalent manganese; the latter oxidizes o-tolidine reversibly with formation of the corresponding quinonediinline, which is visually titrated by the ascorbic acid standard solution.

Original language	English
Pages (from-to)	57-61
Number of pages	5
Journal	Analytical Letters
Volume	8
Issue number	1
DOIs	https://doi.org/10.1080/00032717508060361
Publication status	Published - 1 Jan 1975
Externally published	Yes

Keywords

ascorbic acid
dichromate
o-tolidine
pyrophosphate complex of tervalent manganese
titre

ASJC Scopus subject areas

Analytical Chemistry
Biochemistry
Spectroscopy
Clinical Biochemistry
Biochemistry, medical
Electrochemistry

Access to Document

10.1080/00032717508060361

Fingerprint Dive into the research topics of 'The determination of the titre of ascorbic acid standard solutions'. Together they form a unique fingerprint.

Cite this

@article{c2f16b963922480bba3d85e926a2c314,

title = "The determination of the titre of ascorbic acid standard solutions",

abstract = "A new method for the determination of the titre of ascorbic acid standard solutions employing potassium dichromate as a primary standard has been developed. In a pyrophosphate medium, the pyrophosphate complex of divalent manganese is oxidized by dichromate to the pyrophosphate complex of tervalent manganese; the latter oxidizes o-tolidine reversibly with formation of the corresponding quinonediinline, which is visually titrated by the ascorbic acid standard solution.",

keywords = "ascorbic acid, dichromate, o-tolidine, pyrophosphate complex of tervalent manganese, titre",

author = "J. Barek and A. Berka",

year = "1975",

month = jan,

day = "1",

doi = "10.1080/00032717508060361",

language = "English",

volume = "8",

pages = "57--61",

journal = "Analytical Letters",

issn = "0003-2719",

publisher = "Taylor and Francis Ltd.",

number = "1",

}

TY - JOUR

T1 - The determination of the titre of ascorbic acid standard solutions

AU - Barek, J.

AU - Berka, A.

PY - 1975/1/1

Y1 - 1975/1/1

N2 - A new method for the determination of the titre of ascorbic acid standard solutions employing potassium dichromate as a primary standard has been developed. In a pyrophosphate medium, the pyrophosphate complex of divalent manganese is oxidized by dichromate to the pyrophosphate complex of tervalent manganese; the latter oxidizes o-tolidine reversibly with formation of the corresponding quinonediinline, which is visually titrated by the ascorbic acid standard solution.

AB - A new method for the determination of the titre of ascorbic acid standard solutions employing potassium dichromate as a primary standard has been developed. In a pyrophosphate medium, the pyrophosphate complex of divalent manganese is oxidized by dichromate to the pyrophosphate complex of tervalent manganese; the latter oxidizes o-tolidine reversibly with formation of the corresponding quinonediinline, which is visually titrated by the ascorbic acid standard solution.

KW - ascorbic acid

KW - dichromate

KW - o-tolidine

KW - pyrophosphate complex of tervalent manganese

KW - titre

UR - http://www.scopus.com/inward/record.url?scp=84915020878&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84915020878&partnerID=8YFLogxK

U2 - 10.1080/00032717508060361

DO - 10.1080/00032717508060361

M3 - Article

AN - SCOPUS:84915020878

VL - 8

SP - 57

EP - 61

JO - Analytical Letters

JF - Analytical Letters

SN - 0003-2719

IS - 1