SU645077A1 - Method of quantitative determining of aliphatic and aromatic alcohols in hydrocarbons - Google Patents
Method of quantitative determining of aliphatic and aromatic alcohols in hydrocarbonsInfo
- Publication number
- SU645077A1 SU645077A1 SU772482293A SU2482293A SU645077A1 SU 645077 A1 SU645077 A1 SU 645077A1 SU 772482293 A SU772482293 A SU 772482293A SU 2482293 A SU2482293 A SU 2482293A SU 645077 A1 SU645077 A1 SU 645077A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- hydrocarbons
- aliphatic
- alcohols
- concentration
- aromatic alcohols
- Prior art date
Links
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
Калибровочный график стро т следующим образом. Готов т растворы углеводорода со спиртом или смесью спиртов концентрации , например 0,1; 0,5; 1,0... 10% и т. д. и смешивают с известным раствором кислоты или смесью кислоты и ее соли. Перешедшую Б спирты кислоту титруют раствором щелочи и стро т график в координатах: концентраци кислоты в спирте (моль/л) - концентраци спирта или смеси спиртов (об% или моль/л). Эта зависимость представл ет собой пр мую линию, нроход ш,ую через начало координат и имеющую наклон, завис щий только от концентрации кислоты в исходном водном растворе.The calibration schedule is as follows. Solutions of the hydrocarbon are prepared with an alcohol or mixture of alcohols of concentration, for example, 0.1; 0.5; 1.0 ... 10%, etc., and mixed with a known acid solution or a mixture of acid and its salt. The acid that has been converted into alcohols is titrated with an alkali solution and a graph is drawn in the following coordinates: acid concentration in alcohol (mol / l) —concentration of alcohol or mixture of alcohols (vol% or mol / l). This relationship is a straight line, slower through the origin and tilted, depending only on the acid concentration in the initial aqueous solution.
Концентраци спиртов в углеводородах, об. %Alcohol concentration in hydrocarbons, vol. %
Пример 1. Определение первичных алифатических спиртов Сз-С в смеси предельных углеводородов Сб-С (спинтин).Example 1. The definition of primary aliphatic alcohols Cz-C in a mixture of saturated hydrocarbons Sat-C (spintin).
Искусственно приготовленную смесь спиртов и улеводородов (2-3 мл), смешивают в течение 3 мин с 1 моль/л раствора азотной кислоты, насыщенной нитратом алюмини (спирты прониловый и бутиловый ) и 4 моль/л азотной кислоты, насыщенной нитратом алюмини (спирты изоамиловый , гептиловый). После отсто в течение 1-2 мин аликвоту смеси углеводородов (0,5-1 мл) титруют в присутствии 10 мл воды 0,1 моль/л натриевой щелочи с индикатором - фенолфталеином.An artificially prepared mixture of alcohols and hydrocarbons (2-3 ml) is mixed for 3 minutes with 1 mol / l of a solution of nitric acid saturated with aluminum nitrate (pronyl and butyl alcohols) and 4 mol / l of nitric acid saturated with aluminum nitrate (isoamyl alcohols , heptyl). After settling for 1-2 minutes, an aliquot of the mixture of hydrocarbons (0.5-1 ml) is titrated in the presence of 10 ml of water with 0.1 mol / l sodium alkali with the indicator phenolphthalein.
Результаты анализа представлены в табл. 1.The results of the analysis are presented in table. one.
Таблица 1Table 1
Пример 2. По примеру 1 определ ют концентрацию спиртов Сз-Ci2 в смеси предельных углеводородов Cs-Cie. Исход- 20 ную смесь смешивают с 9 моль/л азотнойExample 2. In Example 1, the concentration of Cz-Ci2 alcohols in a mixture of saturated Cs-Cie hydrocarbons is determined. The starting mixture is mixed with 9 mol / l of nitric acid.
Концентраци спиртов в углеводородах, об.Alcohol concentration in hydrocarbons, vol.
Пример 3. Определение концентрации вторичного октилового спирта в додекане .Example 3. Determination of the concentration of secondary octyl alcohol in dodecane.
кислоты в присутствии нитрата алюмини . Результаты анализа представлены в табл. 2.acid in the presence of aluminum nitrate. The results of the analysis are presented in table. 2
Таблица 2table 2
Концентраци азотной кислоты в водной фазе 5 моль/л.The concentration of nitric acid in the aqueous phase is 5 mol / L.
Результаты анализа.The results of the analysis.
онцентраци спирта,Найденоalcohol concentration, Found
об. %, в додеканеанализом заданна about. %, in dodecane analysis given
0,30,280.30.28
0,50,490,50,49
1,01,121,01,12
4,03,944.03.94
6,06,156,06,15
8,08,058.08.05
12,012,612,012,6
Таким образом, предлагаемый способ обладает высокой точностью определени спиртов (погрешность единичного определени составл ет в основном 5-10%), экспрессностью (врем проведени анализа пе более 10 мин), не требует сложных приборов и использует дешевые и доступные реагенты.Thus, the proposed method has a high accuracy in the determination of alcohols (the error of a single determination is mainly 5–10%), rapidity (the analysis time is no more than 10 minutes), does not require complicated instruments, and uses cheap and affordable reagents.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772482293A SU645077A1 (en) | 1977-05-03 | 1977-05-03 | Method of quantitative determining of aliphatic and aromatic alcohols in hydrocarbons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772482293A SU645077A1 (en) | 1977-05-03 | 1977-05-03 | Method of quantitative determining of aliphatic and aromatic alcohols in hydrocarbons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU645077A1 true SU645077A1 (en) | 1979-01-30 |
Family
ID=20707462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772482293A SU645077A1 (en) | 1977-05-03 | 1977-05-03 | Method of quantitative determining of aliphatic and aromatic alcohols in hydrocarbons |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU645077A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009123496A1 (en) * | 2008-04-03 | 2009-10-08 | Ог Системз Лимитед | Method and device for measuring impurities in oil and petroleum products |
| RU2457475C2 (en) * | 2008-04-03 | 2012-07-27 | Ог Системз Лимитед | Method and apparatus for determining impurities in oil and oil products |
-
1977
- 1977-05-03 SU SU772482293A patent/SU645077A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009123496A1 (en) * | 2008-04-03 | 2009-10-08 | Ог Системз Лимитед | Method and device for measuring impurities in oil and petroleum products |
| RU2457475C2 (en) * | 2008-04-03 | 2012-07-27 | Ог Системз Лимитед | Method and apparatus for determining impurities in oil and oil products |
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