FIELD: analytical methods.
SUBSTANCE: invention concerns analytical determination of acids, acid salts, and other substances having acid reaction and reacting with alkalis, in particular titration method for use both in educational process and in industry. Method comprises weighing and dissolving in water sample of a substance, or taking measured volume of a substance followed by titration thereof using alkali titrants and pH-meter-mediated determination of equivalence point, said titrants being electrochemically activated alkaline water with pH 11.9-12.1 thereto 0.1% NaCl was added before activation.
EFFECT: reduced expenses on preparation of alkali solutions.
7 dwg, 12 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR DETERMINING OF ALKALINITY OF FOOD AND NON-FOOD SUBSTANCES | 2003 |
|
RU2234698C1 |
METHOD OF DETERMINING WEIGHT PART OF MAIN SUBSTANCE OF METHYLPHOSPHONIC ACID BY TITRIMETRIC METHOD | 2007 |
|
RU2365914C2 |
PROCESS OF DETERMINATION OF SODIUM ALUMINATE, HYDROXIDE AND CARBONATE IN SOLUTIONS OF SODIUM ALUMINATE | 1992 |
|
RU2043627C1 |
ACID-BASE INDICATORS | 0 |
|
SU1760445A1 |
METHOD OF ASSESSING NITROGEN IN BIOLOGICAL SAMPLES | 1999 |
|
RU2156458C1 |
METHOD OF COMPLEX ANALYSIS OF MATERIAL SAMPLES | 0 |
|
SU1786428A1 |
METHOD FOR QUANTIATIVE DETECTION OF END RADICALS OF POLYAMIDES | 0 |
|
SU763788A1 |
METHOD OF CONTROL NATURAL MANDARIN JUICE | 0 |
|
SU1793372A1 |
METHOD OF QUANTITATIVE DETERMINING OF TERMINAL GROUPS OF POLYAMIDES | 0 |
|
SU777571A1 |
3,3'-SUBSTITUTED TRIPHENYL METHANE DYES AS ACID-BASE INDICATORS | 2000 |
|
RU2176654C1 |
Authors
Dates
2005-01-10—Published
2003-05-20—Filed