JPS55128147A - Titrating method for quantity of electricity of total hardness of sample - Google Patents
Titrating method for quantity of electricity of total hardness of sampleInfo
- Publication number
- JPS55128147A JPS55128147A JP3605879A JP3605879A JPS55128147A JP S55128147 A JPS55128147 A JP S55128147A JP 3605879 A JP3605879 A JP 3605879A JP 3605879 A JP3605879 A JP 3605879A JP S55128147 A JPS55128147 A JP S55128147A
- Authority
- JP
- Japan
- Prior art keywords
- copper
- sample
- electricity
- edta
- total hardness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
PURPOSE: To titrate the quantity of electricity easily without skill, by electrolyzing a solution prepared by adding a very small amount of PVA and hydrazine salt to an aqueous solution of copper-EDTA buffered with ammonium salt, and by detecting an end point by a twin-cooper polarization potential difference method.
CONSTITUTION: To an aqueous solution of copper-EDTA (copper ethylene-diamine tetraacetate) buffered at a pH of 8.0W9.5 with not less than 0.2M ammonium salt, approximate 0.005% PVA as an electrode stabilizer and 0.03W0.1g of hydrazine salt to 20ml of the above-mentioned solution as a deoxidizing agent are added. The resulting mixture is used as an electrolyte and a sample is added to the mixture and the whole is electrolyzed. An end point at which Cu2+ liberated from the copper- EDTA reduction-expires is detected by a twin-copper polarization potential difference method to obtain the quantity of electricity consumed. The total hardness of the sample is measured on the basis of the quantity of electricity consumed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3605879A JPS55128147A (en) | 1979-03-27 | 1979-03-27 | Titrating method for quantity of electricity of total hardness of sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3605879A JPS55128147A (en) | 1979-03-27 | 1979-03-27 | Titrating method for quantity of electricity of total hardness of sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55128147A true JPS55128147A (en) | 1980-10-03 |
Family
ID=12459110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3605879A Pending JPS55128147A (en) | 1979-03-27 | 1979-03-27 | Titrating method for quantity of electricity of total hardness of sample |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55128147A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0730255U (en) * | 1991-02-14 | 1995-06-06 | 株式会社ネクスト | reel |
| US6048941A (en) * | 1997-04-11 | 2000-04-11 | Daikin Industries Ltd. | Stainproofing agent composition |
| CN104267144A (en) * | 2014-10-16 | 2015-01-07 | 天津农学院 | Water total hardness test solution for aquaculture and aquarium as well as preparation method and use method of test solution |
-
1979
- 1979-03-27 JP JP3605879A patent/JPS55128147A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0730255U (en) * | 1991-02-14 | 1995-06-06 | 株式会社ネクスト | reel |
| US6048941A (en) * | 1997-04-11 | 2000-04-11 | Daikin Industries Ltd. | Stainproofing agent composition |
| CN104267144A (en) * | 2014-10-16 | 2015-01-07 | 天津农学院 | Water total hardness test solution for aquaculture and aquarium as well as preparation method and use method of test solution |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1516011A (en) | Measurement of the polarization potential of metal structures | |
| JPS5529940A (en) | Method and apparatus for determining activity of microorganism | |
| EP0077980A3 (en) | (potassium ion-selective membrane) electrode | |
| JPS55128147A (en) | Titrating method for quantity of electricity of total hardness of sample | |
| Elnagdi et al. | Polarographic activity of the arylhydrazones of a-cyanoketones as a criterion of their acidity | |
| JPS5727129A (en) | Electrochemical system | |
| JPS547397A (en) | Ion concentration measuring apparatus | |
| JPS5663249A (en) | Measurement of multiplication of bacteria | |
| JPS5323693A (en) | Amalysing method for lead | |
| Gupta et al. | Polarography of 5-nitro-ace-naphthene | |
| Karlovský et al. | Tetraphenylborate-sensitive electrode for measuring membrane potential | |
| JPS56101546A (en) | Estimating method of stress corrosive crack sensitivity in stainless steel | |
| Inesi et al. | Electrochemical studies on 3, 3′-methylenebis-(4-hydroxycoumarin)(dicoumarol) in dimethylformamide | |
| JPS52143973A (en) | Production of electrolytic solution | |
| JPS5339193A (en) | Measuring method for ion concentration of phosphoric acid and arsenic acid | |
| JPS55146035A (en) | Measuring method of concentration of hydrogen peroxide | |
| SU136589A1 (en) | Electrochemical method for quantitative determination of metal cations | |
| JPS5587942A (en) | Measuring rdevice of residual chlorine | |
| Sundaresan et al. | On the polarography of zinc in ethylenediamine medium | |
| JPS52111820A (en) | Electro-deposition of zinc | |
| JPS5334715A (en) | Preparation of amino-polyacetic acid alkali salt | |
| JPS55154457A (en) | Measuring method of persulfate ion concentration | |
| Ahlber | The Influence of Acetylenic Compounds on the Corrosion Behavior of Iron in Acidic Perchlorate Solutions | |
| OKAMOTO | Oscillographic Square Wave Polarographic Behavior of Some Inorganic and Organic Compounds | |
| Auerbach et al. | Determination of uranium at microgram levels by derivative polarography |