US2219294A - Aluminum container for hydrogen peroxide - Google Patents

Aluminum container for hydrogen peroxide Download PDF

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Publication number
US2219294A
US2219294A US320434A US32043440A US2219294A US 2219294 A US2219294 A US 2219294A US 320434 A US320434 A US 320434A US 32043440 A US32043440 A US 32043440A US 2219294 A US2219294 A US 2219294A
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US
United States
Prior art keywords
hydrogen peroxide
aluminum
acid
aluminum container
contact
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.)
Expired - Lifetime
Application number
US320434A
Inventor
Max E Bretschger
Hans O Kauffmann
Frederick A Gilbert
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.)
BUFFALO ELECTRO CHEM CO
BUFFALO ELECTRO-CHEMICAL COMPANY Inc
Original Assignee
BUFFALO ELECTRO CHEM CO
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
Priority claimed from US90440A external-priority patent/US2219293A/en
Application filed by BUFFALO ELECTRO CHEM CO filed Critical BUFFALO ELECTRO CHEM CO
Priority to US320434A priority Critical patent/US2219294A/en
Application granted granted Critical
Publication of US2219294A publication Critical patent/US2219294A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/01—Hydrogen peroxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/14—Linings or internal coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
    • 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
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/56—Treatment of aluminium or alloys based thereon

Definitions

  • This invention relates to metallic containers for hydrogen peroxide solutions and more particularly to aluminum containers treated to withstand attack by hydrogen peroxide.
  • metallic aluminum is used for storage vessels of hydrogen peroxide.
  • the surface of the aluminum container is cleaned or etched with a non-oxidizing acid, that is, one which reacts with metallic aluminum without decomposition of its anion, probably removing the adhering oxide film, so that the aluminum metal is exposed to contact with the hydrogen peroxide therein.
  • a non-oxidizing acid that is, one which reacts with metallic aluminum without decomposition of its anion, probably removing the adhering oxide film, so that the aluminum metal is exposed to contact with the hydrogen peroxide therein.
  • an aluminum container such as an aluminum drum used for transportation of hydrogen peroxide, is filled with sulfuric acid at room temperature and permitted to stand for about one .to two hours, the sulfuric acid removed and the drum rinsed with Water.
  • the sulfuric acid may be brushed or sprayed upon the interior surface of the con tainer or a small amount placed in the container and agitated therein until the desired contact is obtained.
  • This treatment probably removes the tightly adhering aluminum oxide and leaves a fresh surface of aluminum.
  • the drum is not initially clean, it should be washed well with soap and water or with lye or caustic soda solution to remove grease, etc., and well rinsed with Water prior to the surface etching with the nonoxidizing acid.
  • organic solvents such as carbon tetrachloride, naphtha and the like.
  • Sulfuric acid is an excellent non-oxidizing acid for producing an etch on the interior of an aluminum container.
  • the etch can [be finished with any suitable concentration of acid, and the time of contact need not be great, a good etch being obtained within a half hour.
  • the surface of the aluminum vessel after being treated with the non-oxidizing acid, to induce the protective efiector inhibiting action, possesses a dulled and etched appearance Without the sheen or polish possessed by the untreated metallic aluminum.
  • Commercial hydrogen :peroxide solutions in contact with aluminum surfaces not [treated in accordance with the present invention react therewith and pit the same with the formation of a white flocculent material adhering to the aluminum metal and dispersed in the peroxide solution. This action continues and the metal is finally eaten through.
  • the interior of the treated aluminum vessel is generally darkened, appearing brown to black, in direct light and showing interference colors in reflected light indicating the presence upon the metal of a film of deposited material in a fine state of subdivision.
  • the vessel After use, the vessel needs no further or additional treatment with the non-oxidizing acid as the surface, once treated with the non-oxidizing acid, acquires, after use, a passivity or inactivity towards hydrogen peroxide solutions, permitting repeated use in contact with peroxide, although if the surface be marred or scratched, the area should be again treated.
  • non-oxidizing acid designates an acid the hydrogen of which is liberated as gaseous hydrogen when the acid acts upon metallic aluminum.
  • the present invention provides a method of treating metallic aluminum vessels whereby the saline can be used with safety in contact with hydrogen peroxide solutions without the destruction of the vessel and without adversely affecting the stability of the hydrogen peroxide.
  • the method of packaging hydrogen peroxide which comprises treating the interior surface of an aluminum vessel with sulfuric acid to etch the same and thereafter placing hydrogen peroxide in said vessel in contact with the surface so treated.
  • a package comprising a container having an MAX E. BRETSCHGER. HANS O. KAUFFMANN. FREDERICK A. GILBERT.

Description

Patented Oct. 29, 1940 ALUMINUM CONTAINER FOR HYDROGEN PER-OXIDE Max E. Bretschger, Buffalo, Hans 0. Kaufimann,
Eg'gertsville, and Frederick A. Gilbert, Buffalo,
- N. Y., assignors to Buffalo Electra-Chemical Company, Inc., Buffalo, N. Y.
No Drawing. Original application July 13, 1936, Serial No. 90,440. Divided and this application February 23, 1940, Serial No. 320,434
2 Claims. (01. 23 240) This invention relates to metallic containers for hydrogen peroxide solutions and more particularly to aluminum containers treated to withstand attack by hydrogen peroxide.
This is a division of our co-pending application Serial No. 90,440, filed July 13, 1936.
Repeated statements are found in the literature that hydrogen peroxide attacks metallic aluminum, with the formation of pits and holes, and attempts to use hydrogen peroxide in contact with metallic aluminum containers heretofore have been unsuccessful unless the surface of the aluminum container, in contact with the peroxide, had been given a protective treatment.
Suggestions have been made heretofore to coat the interior of metallic aluminum containers, used for transportation or storage of hydrogen peroxide, either with certain mixtures of paraffin and petrolatum or the like, or to coat the metallic aluminum with an artificial film of oxide by oxidizing the interior surface of the container with nitric acid as an oxidizing acid.
In accordance with the present invention and contrary to the prior teachings, metallic aluminum is used for storage vessels of hydrogen peroxide. However, the surface of the aluminum container is cleaned or etched with a non-oxidizing acid, that is, one which reacts with metallic aluminum without decomposition of its anion, probably removing the adhering oxide film, so that the aluminum metal is exposed to contact with the hydrogen peroxide therein. Thus, an aluminum container, such as an aluminum drum used for transportation of hydrogen peroxide, is filled with sulfuric acid at room temperature and permitted to stand for about one .to two hours, the sulfuric acid removed and the drum rinsed with Water. The sulfuric acid may be brushed or sprayed upon the interior surface of the con tainer or a small amount placed in the container and agitated therein until the desired contact is obtained. This treatment probably removes the tightly adhering aluminum oxide and leaves a fresh surface of aluminum. Where the drum is not initially clean, it should be washed well with soap and water or with lye or caustic soda solution to remove grease, etc., and well rinsed with Water prior to the surface etching with the nonoxidizing acid. In some cases it may be found advantageous toclean the metal surfiace initially with organic solvents, such as carbon tetrachloride, naphtha and the like.
Sulfuric acid is an excellent non-oxidizing acid for producing an etch on the interior of an aluminum container. In general, the etch can [be finished with any suitable concentration of acid, and the time of contact need not be great, a good etch being obtained within a half hour.
Thus a strip of aluminum was etched for 1 hours in 50% aqueous sulfuric acid and immersed in 100 volume hydrogen peroxide. After five days immersion the strip showed no signs of pitting.
The surface of the aluminum vessel, after being treated with the non-oxidizing acid, to induce the protective efiector inhibiting action, possesses a dulled and etched appearance Without the sheen or polish possessed by the untreated metallic aluminum. Commercial hydrogen :peroxide solutions in contact with aluminum surfaces not [treated in accordance with the present invention react therewith and pit the same with the formation of a white flocculent material adhering to the aluminum metal and dispersed in the peroxide solution. This action continues and the metal is finally eaten through.
After contact with the hydrogen peroxide solution, the interior of the treated aluminum vessel is generally darkened, appearing brown to black, in direct light and showing interference colors in reflected light indicating the presence upon the metal of a film of deposited material in a fine state of subdivision.
After use, the vessel needs no further or additional treatment with the non-oxidizing acid as the surface, once treated with the non-oxidizing acid, acquires, after use, a passivity or inactivity towards hydrogen peroxide solutions, permitting repeated use in contact with peroxide, although if the surface be marred or scratched, the area should be again treated.
The term non-oxidizing acid as used in the claims designates an acid the hydrogen of which is liberated as gaseous hydrogen when the acid acts upon metallic aluminum.
From the foregoing it will .be seen that the present invention provides a method of treating metallic aluminum vessels whereby the saline can be used with safety in contact with hydrogen peroxide solutions without the destruction of the vessel and without adversely affecting the stability of the hydrogen peroxide.
What is claimed is.
1. The method of packaging hydrogen peroxide which comprises treating the interior surface of an aluminum vessel with sulfuric acid to etch the same and thereafter placing hydrogen peroxide in said vessel in contact with the surface so treated.
2. A package comprising a container havingan MAX E. BRETSCHGER. HANS O. KAUFFMANN. FREDERICK A. GILBERT.
US320434A 1936-07-13 1940-02-23 Aluminum container for hydrogen peroxide Expired - Lifetime US2219294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US320434A US2219294A (en) 1936-07-13 1940-02-23 Aluminum container for hydrogen peroxide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US90440A US2219293A (en) 1936-07-13 1936-07-13 Aluminum container for hydrogen peroxide
US320434A US2219294A (en) 1936-07-13 1940-02-23 Aluminum container for hydrogen peroxide

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US2219294A true US2219294A (en) 1940-10-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3037622A (en) * 1959-12-14 1962-06-05 Shell Oil Co Hydrogen peroxide stabilization
US3073755A (en) * 1959-08-11 1963-01-15 Laporte Chemical Concentration of hydrogen peroxide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3073755A (en) * 1959-08-11 1963-01-15 Laporte Chemical Concentration of hydrogen peroxide
US3037622A (en) * 1959-12-14 1962-06-05 Shell Oil Co Hydrogen peroxide stabilization

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