SU1430845A1 - Method of measuring gas concentration in liquid - Google Patents
Method of measuring gas concentration in liquid Download PDFInfo
- Publication number
- SU1430845A1 SU1430845A1 SU4226779A SU4226779A SU1430845A1 SU 1430845 A1 SU1430845 A1 SU 1430845A1 SU 4226779 A SU4226779 A SU 4226779A SU 4226779 A SU4226779 A SU 4226779A SU 1430845 A1 SU1430845 A1 SU 1430845A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- liquid
- sample
- capillary
- concentration
- gas
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Изобретение относитс к физико- химическому анализу, в частности к определению конц ентрации газа, растворенного в жидкости. Цель изобретени - обеспечение возможности исследовани токсичных и легколетучих веществ . Исследуемый образец ввод т в стекл нный капилл р длиной 15 - 20 мм и диаметром 1-2 мм, герметически закрывают и произвольным понижением температуры перевод т в кристаллическое состо ние. Затем содержимое капилл ра расплавл ют, оставл с одного конца 10-20 мм (1/10-1/20 часть длины кристаллического, столба) в качество будущей затравки. Далее образец опускают в теплоноситель тер- мостатируемой камеры, одна из стенок которой вл етс излучателем ультразвука , переохлаждают и по скорости перемещени кристаллического фронта определ ют концентрацию газа. 1 ил. & (Л сThe invention relates to physicochemical analysis, in particular, to the determination of the concentration of gas dissolved in a liquid. The purpose of the invention is to provide an opportunity to study toxic and volatile substances. The test sample is introduced into a glass capillary with a length of 15-20 mm and a diameter of 1-2 mm, hermetically sealed, and arbitrarily lowering the temperature is transferred to a crystalline state. Then the contents of the capillary are melted, leaving 10-20 mm (1 / 10-1 / 20 of the crystalline column length) at one end as a future seed. Next, the sample is immersed in the coolant of the chamber being cooled, one of the walls of which is an ultrasound emitter, is supercooled, and the gas concentration is determined by the speed of movement of the crystal front. 1 il. & (L with
Description
соwith
О 00 4O 00 4
О1O1
Изобретение относитс к физико-химическому анализу.This invention relates to a physicochemical analysis.
Цель изобретени - обеспечение возможности исследовани токсичных и легколетучих веществ.The purpose of the invention is to provide an opportunity to study toxic and volatile substances.
Способ осуществл етс следующим образом.The method is carried out as follows.
В капилл р диаметром 1,8 мм и длиной 20 см при 50 С ввод т столб жид- кого салола (т.пл. 42°С) длиной 15см Концентраци газа в салоле неизвестна .A liquid salol column (mp. 42 ° C) with a length of 15 cm is introduced into the capillary with a diameter of 1.8 mm and a length of 20 cm at 50 ° C. The concentration of gas in the salol is unknown.
Капилл р закрывают с обоих, концов и понижают температуру. При температуре (лТ 42- lO «32 с) расплав салола спонтанно переходит в твердое состо ние. Затем повьшением температуры до салол вновь расплавл ют, оставл при этом 10-15 мм твердой фазы в качестве затравки. После этого капилл р перенос т в теплоноситель, наход щийс в ультразвуковом поле при 22°С, т.е. переохлаждении , что на 40% меньше переохлаждени в , при котором происходит спонтанна кристаллизаци . После истечени 1 мин времени, необходимого дл выравнивани температуры образца в ка- пилл ре и теплоносител - использу секундомер и сантиметровую шкалу, определ ют скорость перемещени кристаллического фронта от затравки снизу вверх. Она составл ет 19,510 м/с. Далее с помощью градуировочной зависимости , представленной на чертеже, наход т концентрацию газа. Она составл ет 10,6% от объема жидкости (точка В на чертеже).Capillaries are closed at both ends and the temperature is lowered. At a temperature (LT 42- lO "32 s), the salol melt spontaneously passes into the solid state. Then, by increasing the temperature, the salol melts again, leaving 10-15 mm of the solid phase as a seed. After that, the capillary is transferred to the coolant in an ultrasonic field at 22 ° C, i.e. supercooling, which is 40% less than supercooling, at which spontaneous crystallization occurs. After 1 min of the time required to equalize the temperature of the sample in the capillary and the coolant — using a stopwatch and centimeter scale — determine the speed of movement of the crystal front from the seed from bottom to top. It is 19.510 m / s. Next, using the calibration dependence shown in the drawing, the gas concentration is determined. It is 10.6% of the volume of the liquid (point B in the drawing).
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4226779A SU1430845A1 (en) | 1987-03-04 | 1987-03-04 | Method of measuring gas concentration in liquid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4226779A SU1430845A1 (en) | 1987-03-04 | 1987-03-04 | Method of measuring gas concentration in liquid |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1430845A1 true SU1430845A1 (en) | 1988-10-15 |
Family
ID=21297143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4226779A SU1430845A1 (en) | 1987-03-04 | 1987-03-04 | Method of measuring gas concentration in liquid |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1430845A1 (en) |
-
1987
- 1987-03-04 SU SU4226779A patent/SU1430845A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР №941887, кл. G 01 N 7/14, 1982. Перепелкин K.R. и др. Газовые эмульсии. М.: Наука, 1979, с. 68-169. * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Ramsay | A new method of freezing-point determination for small quantities | |
Barger | XXXV.—A microscopical method of determining molecular weights | |
Atack et al. | The interfacial tension and other properties of the cyclohexane+ aniline system near the critical solution temperature | |
SU1430845A1 (en) | Method of measuring gas concentration in liquid | |
Skau | The Purification and Physical Properties of Organic Compounds I. The Interpretation of Time-Temperature Curves in Freezing Point Determinations and as a Criterion of Purity | |
RU2323423C2 (en) | Probe for bath filled with melt of cryolite | |
US3748908A (en) | Device for taking a molten sample | |
Kartzmark | System triethylamine–water: the equilibrium diagram and some physical properties | |
Yamamoto et al. | Method for calibration of nuclear magnetic resonance standard samples for measuring temperature | |
Stowe | The surface tension of liquid sulfur dioxide | |
SU971922A1 (en) | Method for measuring rate of growth of crystals from solution | |
Chattaway et al. | CXCIII.—The transition points of the polymorphic phthalylhydrazides | |
US4400096A (en) | Osmometers | |
Smith et al. | ON AMORPHOUS SULPHUR: III. THE NATURE OF AMORPHOUS SULPHUR AND CONTRIBUTIONS TO THE STUDY OF THE INFLUENCE OF FOREIGN BODIES ON THE BEHAVIOR OF SUPERCOOLED MELTED SULPHUR. | |
Nelson et al. | A new technique for growing crystals from the vapor | |
SU1704050A1 (en) | Method of determining impurities content in substances | |
Tsang et al. | Crystallographic Data. 82. Trinitronaphthalenes | |
CA2278524C (en) | Electrolytic thermometric thermometer | |
Sherry | Optical Rotatory Power of Liquid Ammonia, Methyl Amine, and Sulphur Dioxide Solutions | |
SU614368A1 (en) | Method of plotting fusibility curve | |
Alchagirov et al. | A densimeter for precision measurements of densities of liquids with an increased elasticity of intrinsic saturated vapors | |
SU778481A1 (en) | Method and device for sampling molten metal | |
Taylor | 335. The solubility at high temperatures of pure sucrose in water | |
Kanamori | Shipboard calibration of an infrared absorption gas analyser for total carbon dioxide determination in sea water | |
Richards | THE FREEZING-POINTS OF DILUTE SOLUTIONS. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
REG | Reference to a code of a succession state |
Ref country code: RU Ref legal event code: RH4F Effective date: 20070315 |