RU97108380A - METHOD FOR POTENTIOMETRIC DETERMINATION OF ACID NUMBER OF VEGETABLE OIL - Google Patents

METHOD FOR POTENTIOMETRIC DETERMINATION OF ACID NUMBER OF VEGETABLE OIL

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Publication number
RU97108380A
RU97108380A RU97108380/13A RU97108380A RU97108380A RU 97108380 A RU97108380 A RU 97108380A RU 97108380/13 A RU97108380/13 A RU 97108380/13A RU 97108380 A RU97108380 A RU 97108380A RU 97108380 A RU97108380 A RU 97108380A
Authority
RU
Russia
Prior art keywords
vegetable oil
acid number
potentiometric determination
sample
organic solvent
Prior art date
Application number
RU97108380/13A
Other languages
Russian (ru)
Other versions
RU2119161C1 (en
Inventor
В.Е. Акулинин
О.Е. Рувинский
С.Я. Шарудина
Original Assignee
Кубанский государственный технологический университет
Filing date
Publication date
Application filed by Кубанский государственный технологический университет filed Critical Кубанский государственный технологический университет
Priority to RU97108380A priority Critical patent/RU2119161C1/en
Priority claimed from RU97108380A external-priority patent/RU2119161C1/en
Application granted granted Critical
Publication of RU2119161C1 publication Critical patent/RU2119161C1/en
Publication of RU97108380A publication Critical patent/RU97108380A/en

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Claims (1)

Способ потенциометрического определения кислотного числа растительного масла, предусматривающий смешение навески отобранной пробы исследуемого растительного масла с органическим растворителем, измерение величины рН полученной смеси и определение кислотного числа исследуемого растительного масла, отличающийся тем, что перед смешиванием навески отобранной пробы исследуемого растительного масла с органическим растворителем, в последний вводят не более 0,5 см3 стандартного раствора олеиновой кислоты концентрации 0,03 - 0,08 М, измеряют величину рН полученной смеси, а после смешения навески отобранной пробы исследуемого растительного масла с полученной смесью в нее вводят добавку стандартного раствора олеиновой кислоты концентрации 0,03-0,08 M, измеряют величину рН полученной смеси, причем в качестве органического растворителя используют 95 - 97% по массе водный 1-бутанол.A method for potentiometric determination of the acid number of a vegetable oil, comprising mixing a sample of a test vegetable oil with an organic solvent, measuring the pH of the mixture and determining the acid number of a test vegetable oil, characterized in that before mixing a sample of a test vegetable oil with an organic solvent, the latter is administered not more than 0.5 cm 3 standard oleic acid concentration of 0.03 - 0.08M, measured in the pH of the mixture obtained, and after mixing a sample of the test vegetable oil with the mixture obtained, an addition of a standard solution of oleic acid at a concentration of 0.03-0.08 M is introduced into it, the pH of the mixture is measured, and 95 - 97 are used as an organic solvent % by weight aqueous 1-butanol.
RU97108380A 1997-05-20 1997-05-20 Method of potentiometric determination of acid number of vegetable oils RU2119161C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU97108380A RU2119161C1 (en) 1997-05-20 1997-05-20 Method of potentiometric determination of acid number of vegetable oils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU97108380A RU2119161C1 (en) 1997-05-20 1997-05-20 Method of potentiometric determination of acid number of vegetable oils

Publications (2)

Publication Number Publication Date
RU2119161C1 RU2119161C1 (en) 1998-09-20
RU97108380A true RU97108380A (en) 1999-01-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU97108380A RU2119161C1 (en) 1997-05-20 1997-05-20 Method of potentiometric determination of acid number of vegetable oils

Country Status (1)

Country Link
RU (1) RU2119161C1 (en)

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