JPS579885A - Composition for removing metallic oxide - Google Patents

Composition for removing metallic oxide

Info

Publication number
JPS579885A
JPS579885A JP8344680A JP8344680A JPS579885A JP S579885 A JPS579885 A JP S579885A JP 8344680 A JP8344680 A JP 8344680A JP 8344680 A JP8344680 A JP 8344680A JP S579885 A JPS579885 A JP S579885A
Authority
JP
Japan
Prior art keywords
composition
acid
metallic oxide
oxalate
citric acid
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
JP8344680A
Other languages
Japanese (ja)
Inventor
Seiji Furukawa
Mitsugi Fukuda
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.)
Kurita Water Industries Ltd
Original Assignee
Kurita Water Industries Ltd
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 Kurita Water Industries Ltd filed Critical Kurita Water Industries Ltd
Priority to JP8344680A priority Critical patent/JPS579885A/en
Publication of JPS579885A publication Critical patent/JPS579885A/en
Pending legal-status Critical Current

Links

Landscapes

  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

PURPOSE: To provide a dissolving and removing composition of 3.0W4.5pH for metallic oxide having high solvent power to metallic oxide of clad, etc. and very low corrosiveness and causing no repollution due to reprecipitation or other phenomenon by adding hydrazine oxalate.
CONSTITUTION: Said composition contains hydrazine oxalate, further contains hydroxycarboxylic acid such as citric acid as acid besides oxalic acid and has 3.0W 4.5pH. When citric acid is blended, the amount of citric acid to oxalic acid is adjusted to ≤50wt%. Since hydrazine oxalate in the composition has low solubility, it is desirable to prepare the composition while heating the oxalate to ≥ about 60°C immediately before application. When the composition is used as a detergent, it is introduced into the piping system of an objective apparatus to wash the apparatus and the piping at the same time.
COPYRIGHT: (C)1982,JPO&Japio
JP8344680A 1980-06-21 1980-06-21 Composition for removing metallic oxide Pending JPS579885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8344680A JPS579885A (en) 1980-06-21 1980-06-21 Composition for removing metallic oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8344680A JPS579885A (en) 1980-06-21 1980-06-21 Composition for removing metallic oxide

Publications (1)

Publication Number Publication Date
JPS579885A true JPS579885A (en) 1982-01-19

Family

ID=13802659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8344680A Pending JPS579885A (en) 1980-06-21 1980-06-21 Composition for removing metallic oxide

Country Status (1)

Country Link
JP (1) JPS579885A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62250189A (en) * 1986-04-21 1987-10-31 Kurita Water Ind Ltd Chemical cleaning agent
US6335475B1 (en) 1998-09-29 2002-01-01 Hitachi, Ltd. Method of chemical decontamination
US6973154B2 (en) 1998-09-29 2005-12-06 Hitachi, Ltd. Method of chemical decontamination and system therefor
EP2819125A1 (en) 2013-06-21 2014-12-31 Hitachi-GE Nuclear Energy, Ltd. Radioactive organic waste treatment method and system
JP2015161649A (en) * 2014-02-28 2015-09-07 日立Ｇｅニュークリア・エナジー株式会社 Organic radioactive solid waste treatment method and organic radioactive solid waste treatment apparatus
JP2016001115A (en) * 2014-06-11 2016-01-07 日立Ｇｅニュークリア・エナジー株式会社 Organic-based radioactive waste treatment system and organic-based radioactive waste treatment method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62250189A (en) * 1986-04-21 1987-10-31 Kurita Water Ind Ltd Chemical cleaning agent
JPH0119473B2 (en) * 1986-04-21 1989-04-11 Kurita Kogyo Kk
US6335475B1 (en) 1998-09-29 2002-01-01 Hitachi, Ltd. Method of chemical decontamination
US6921515B2 (en) 1998-09-29 2005-07-26 Hitachi, Ltd. Apparatus for chemical decontamination
US6973154B2 (en) 1998-09-29 2005-12-06 Hitachi, Ltd. Method of chemical decontamination and system therefor
EP2819125A1 (en) 2013-06-21 2014-12-31 Hitachi-GE Nuclear Energy, Ltd. Radioactive organic waste treatment method and system
US9336913B2 (en) 2013-06-21 2016-05-10 Hitachi-Ge Nuclear Energy, Ltd. Radioactive organic waste treatment method
JP2015161649A (en) * 2014-02-28 2015-09-07 日立Ｇｅニュークリア・エナジー株式会社 Organic radioactive solid waste treatment method and organic radioactive solid waste treatment apparatus
JP2016001115A (en) * 2014-06-11 2016-01-07 日立Ｇｅニュークリア・エナジー株式会社 Organic-based radioactive waste treatment system and organic-based radioactive waste treatment method

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