JPS55128147A - Titrating method for quantity of electricity of total hardness of sample - Google Patents

Titrating method for quantity of electricity of total hardness of sample

Info

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
Application number
JP3605879A
Other languages
Japanese (ja)
Inventor
Nobuma Miyake
Eiko Nishioka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHIYUUSHIYOU KIGIYOU SHINKOU J
CHIYUUSHIYOU KIGYO SHINKO JIGYODAN
Original Assignee
CHIYUUSHIYOU KIGIYOU SHINKOU J
CHIYUUSHIYOU KIGYO SHINKO JIGYODAN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHIYUUSHIYOU KIGIYOU SHINKOU J, CHIYUUSHIYOU KIGYO SHINKO JIGYODAN filed Critical CHIYUUSHIYOU KIGIYOU SHINKOU J
Priority to JP3605879A priority Critical patent/JPS55128147A/en
Publication of JPS55128147A publication Critical patent/JPS55128147A/en
Pending legal-status Critical Current

Links

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
JP3605879A 1979-03-27 1979-03-27 Titrating method for quantity of electricity of total hardness of sample Pending JPS55128147A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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

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