JPS5719385A - Gaseous nitrogen oxide generation inhibitor for nitric acid pickling bath - Google Patents

Gaseous nitrogen oxide generation inhibitor for nitric acid pickling bath

Info

Publication number
JPS5719385A
JPS5719385A JP9399580A JP9399580A JPS5719385A JP S5719385 A JPS5719385 A JP S5719385A JP 9399580 A JP9399580 A JP 9399580A JP 9399580 A JP9399580 A JP 9399580A JP S5719385 A JPS5719385 A JP S5719385A
Authority
JP
Japan
Prior art keywords
nitric acid
acid
nox
pickling bath
generation inhibitor
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.)
Granted
Application number
JP9399580A
Other languages
Japanese (ja)
Other versions
JPS6235480B2 (en
Inventor
Masayoshi Kotake
Yoshihide Okumura
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.)
Nissan Chemical Corp
Original Assignee
Nissan Chemical Corp
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 Nissan Chemical Corp filed Critical Nissan Chemical Corp
Priority to JP9399580A priority Critical patent/JPS5719385A/en
Publication of JPS5719385A publication Critical patent/JPS5719385A/en
Publication of JPS6235480B2 publication Critical patent/JPS6235480B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/086—Iron or steel solutions containing HF

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

PURPOSE:To obtain a gaseous NOX generation inhibitor for a nitric acid pickling bath having high controllability and a superior effect of inhibiting the generation of gaseous NOX by adding acidic ammonium sulfate, urea and sulfuric acid to sulfamic acid as a principal component. CONSTITUTION:When metal is pickled with nitric acid or an acid contg. nitric acid, harmful NOX are generated. At this time, by adding a gaseous NOX generation inhibitor having the following composition to the pickling liq., the generation of NOX is inhibited. The inhibitor consists of 85-95wt% sulfamic acid, 3-10wt% acidic ammonium sulfate, 0.1-5wt% urea and 2-5wt% sulfuric acid.
JP9399580A 1980-07-11 1980-07-11 Gaseous nitrogen oxide generation inhibitor for nitric acid pickling bath Granted JPS5719385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9399580A JPS5719385A (en) 1980-07-11 1980-07-11 Gaseous nitrogen oxide generation inhibitor for nitric acid pickling bath

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9399580A JPS5719385A (en) 1980-07-11 1980-07-11 Gaseous nitrogen oxide generation inhibitor for nitric acid pickling bath

Publications (2)

Publication Number Publication Date
JPS5719385A true JPS5719385A (en) 1982-02-01
JPS6235480B2 JPS6235480B2 (en) 1987-08-01

Family

ID=14097976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9399580A Granted JPS5719385A (en) 1980-07-11 1980-07-11 Gaseous nitrogen oxide generation inhibitor for nitric acid pickling bath

Country Status (1)

Country Link
JP (1) JPS5719385A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60185173A (en) * 1984-03-05 1985-09-20 Hitachi Ltd Detection of connection stage of logical circuit
WO2001053567A1 (en) * 2000-01-19 2001-07-26 Avestapolarit Aktiebolag (Publ) Pickling agent containing urea and method of producing it

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60185173A (en) * 1984-03-05 1985-09-20 Hitachi Ltd Detection of connection stage of logical circuit
JPH0436347B2 (en) * 1984-03-05 1992-06-15 Hitachi Ltd
WO2001053567A1 (en) * 2000-01-19 2001-07-26 Avestapolarit Aktiebolag (Publ) Pickling agent containing urea and method of producing it
JP2003520299A (en) * 2000-01-19 2003-07-02 アヴェスタポラリト アーベー Pickling agent containing urea and method for producing the same

Also Published As

Publication number Publication date
JPS6235480B2 (en) 1987-08-01

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