SU853539A1 - Method of sodium cyan-acetate determination - Google Patents
Method of sodium cyan-acetate determination Download PDFInfo
- Publication number
- SU853539A1 SU853539A1 SU792839817A SU2839817A SU853539A1 SU 853539 A1 SU853539 A1 SU 853539A1 SU 792839817 A SU792839817 A SU 792839817A SU 2839817 A SU2839817 A SU 2839817A SU 853539 A1 SU853539 A1 SU 853539A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- hydrochloric acid
- sodium
- titration
- analyzed sample
- acetate
- Prior art date
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
Поставленна цель достигаетс тем что в способе определени циануксуснокислого натри , включающем обработку анализируемой пробы неорганическим реагентом и титрование, анализируемую пробу обрабатывают избытком сол ной кислоты с последующим титрованием полученного раствора спиртовым раствором щелочи в среде смеси этштацетата и ацетона при объемном соотношении их и сол ной кислоты 22 ,5:35-40:1.The goal is achieved by the fact that in the method of determining sodium cyanoacetic acid, which includes treating an analyzed sample with an inorganic reagent and titration, the analyzed sample is treated with an excess of hydrochloric acid, followed by titration of the resulting solution with an alcoholic alkali solution in a mixture of etchta acetate and acetone at a volume ratio of their hydrochloric acid 22 5: 35-40: 1.
Пример. Навеску анализируемой пробы цйануксуснокислого натри 0,0893-0,1088 г помещают в чейку рН-метра дл титровани , обрабатывают 2 мл (т.е. избытком) .1 н сол ной кислоты, добавл неводныйExample. A sample of the analyzed sample of sodium cyanusobate 0.0893-0.1088 g is placed in a pH meter well for titration, treated with 2 ml (i.e., excess). 1N hydrochloric acid, adding non-aqueous
растворитель при объемном соотношении (мл) этилацетат:ацетон:сол на кислота 5:80:2; 4:70:2; 4,5:75:2, и титруют потенциометрически 1 н.solvent at a volume ratio (ml) of ethyl acetate: acetone: hydrochloric acid 5: 80: 2; 4: 70: 2; 4.5: 75: 2, and titrated potentiometrically 1 n.
спиртовым раствором едкого кали до потенциала Е -20 мВ, соответствующего точке эквивалентности сол ной кислоты в данном растворителе, фиксируют израсходованное количествоan alcoholic solution of potassium hydroxide to a potential of E –20 mV, corresponding to the equivalence point of hydrochloric acid in this solvent, fix the amount of energy consumed
титранта - спиртового раствора едкого кали и продолжают титровать до потенциала Е, -430 мВ, соответствующего точке эквивалентности диануксусной кислоты в данном растворителе .the titrant is an alcohol solution of caustic potassium and continues to be titrated to a potential E, -430 mV, corresponding to the equivalence point of dianoacetic acid in this solvent.
Результаты количественного определени циануксуснокислого натри приведены в таблице.The results of quantitative determination of sodium cyanoacetic acid are given in the table.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792839817A SU853539A1 (en) | 1979-11-16 | 1979-11-16 | Method of sodium cyan-acetate determination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792839817A SU853539A1 (en) | 1979-11-16 | 1979-11-16 | Method of sodium cyan-acetate determination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU853539A1 true SU853539A1 (en) | 1981-08-07 |
Family
ID=20859272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792839817A SU853539A1 (en) | 1979-11-16 | 1979-11-16 | Method of sodium cyan-acetate determination |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU853539A1 (en) |
-
1979
- 1979-11-16 SU SU792839817A patent/SU853539A1/en active
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