DE689319C - Wood preservatives - Google Patents

Wood preservatives

Info

Publication number
DE689319C
DE689319C DE1934G0088569 DEG0088569D DE689319C DE 689319 C DE689319 C DE 689319C DE 1934G0088569 DE1934G0088569 DE 1934G0088569 DE G0088569 D DEG0088569 D DE G0088569D DE 689319 C DE689319 C DE 689319C
Authority
DE
Germany
Prior art keywords
potassium
wood
mixture
salts
wood preservatives
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
Application number
DE1934G0088569
Other languages
German (de)
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.)
Grubenholzimpraegnierung G M B
Original Assignee
Grubenholzimpraegnierung G M B
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 Grubenholzimpraegnierung G M B filed Critical Grubenholzimpraegnierung G M B
Priority to DE1934G0088569 priority Critical patent/DE689319C/en
Application granted granted Critical
Publication of DE689319C publication Critical patent/DE689319C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/52Impregnating agents containing mixtures of inorganic and organic compounds

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Description

Holzkonservierungsmittel Die Herstellung eines hochläslichen Holzkonservierungsmittels auf der Basis eines Gemisches von Fluorsalzen in fester Form scheiterte. bisher an der Zerfließlichkeit der dazu benötigten leicht löslichen Kalium- und Ammoniumfluoride. Solche Imprägniersalzgemische konnten daher nur in wäßriger Lösung hergestellt werden. Der Einführung solcher wäßrigen Lösungen standen die hohen Transportkosten im Wege.Wood preservative The production of a highly soluble wood preservative based on a mixture of fluorine salts in solid form failed. until now the deliquescence of the easily soluble potassium and ammonium fluorides required for this. Such impregnation salt mixtures could therefore only be produced in aqueous solution. The introduction of such aqueous solutions was hampered by the high transport costs.

Mit den schwerlöslichen Natriumsalzen, wie Natriumfluorid oder Alkalisilioofluoriden, war wiederum die Herstellung von- hochprozentigen Lösungen nicht möglich.With the sparingly soluble sodium salts, such as sodium fluoride or alkali silioofluorides, Again, the production of high-proof solutions was not possible.

Vorliegende Erfindung bezweckt die Herstellung eines transportfähigen, leicht löslichen fluorhaltigen Imprägniersalzes im Pulverförm. Zu diesem Zwecke werden die nicht hygroskopischen Difluoride des Kaliwcs oder des Ammoniums verwendet, die mit Chromatem -oder Dichromaten, gegebenenfalls unter Zusatz von anderen bekannten, fungicid und insekticid wirkenden Stoffen, in solchem Verhältnis mit Kallumcarbonat oder Kaliumbicarbomat vermischt werden, daß die Lösung des Gemisches in Wasser annähernd neutral ist, also. in der Nähe des pH-Wertas 7 liegt.The present invention aims to produce a transportable, Easily soluble fluorine-containing impregnation salt in powder form. To this end non-hygroscopic potassium or ammonium difluorides are used, those with chromates or dichromates, optionally with the addition of other known ones, fungicidal and insecticidal substances, in such a ratio with potassium carbonate or potassium bicarbonate are mixed so that the solution of the mixture in water approximately is neutral, so. is close to pH 7.

Solche Kaliumbifluozid-Chromat-Gemisclie sind bis zu 40,10 in Wasser löslich. Bei der Benutzung dieser Lösungen zurr. Imprägnieren von Holz wird durch die ReduktionswIrkung des Holzes das Chnomat zu Chromiionen reduziert und bildet mit dem Fluorid schwer auslaugbare komplexe Doppelsalze.Such potassium bi-fluoride-chromate mixtures are up to 40.10 in water soluble. When using these solutions zurr. Impregnation of wood is done by The reduction effect of the wood reduces the chromate to chromium ions and forms them Complex double salts that are difficult to leach with the fluoride.

Zur Erhöhung der insekticiden Wirl#-ung der vorliegenden Holzkonserviexungsmittel kann dem Gemenge aus Kalium- oder Ammoniumibifluorid, Kalium- oder Ammoniumchromat oder -bichromat und gegebenenfalls P'henolverbindungen noch ein Zusatz von Arsensäuren oder arseniger Säure bzw. deren sauren Kalium- oder Ammoniumsalzen gegeben werden, wobei die saure Eigenscli,ft diesex Salze durch einen .entsprechenden Zusatz von Kaliumcarbonat wieder ausgeglichen wird. Die auf solche Weise hergestellten Salzgemische halten sieh längere Zeit in pulvertrockernem Zustand an der Luft und sind in vexschlossenen Gefäßen unbegrenzt haltbar. Bein Lösen in Wasser setzen sich die sauren Fluor- und Arsensalze mit dem Kaliumcarbonat unter Bildung der leichtlöslichen neutralen Salze um.To increase the insecticidal whirling of the present wood preservatives can be the mixture of potassium or ammonium bifluoride, potassium or ammonium chromate or bichromate and optionally phenol compounds also an addition of arsenic acids or arsenic acid or its acidic potassium or ammonium salts are added, the acidic properties of these salts by an appropriate addition of Potassium carbonate is rebalanced. The salt mixtures produced in this way keep them in the air in a powder-dry state for a long time and are closed Vessels can be kept indefinitely. When dissolving in water, the acidic fluorine and Arsenic salts with the potassium carbonate to form the easily soluble neutral salts around.

Mischungen von Alkalifluoriden mit Arsensäure, arseniger Säure oder Arseniaten sind zwar als Holzkonservierungsmittel bekannt; sie weisen aber den gleichen Übelstand auf wie die nur reit schwerlöslichen Salzen, wie Natriumfluorid oder Alkalisilioofluoriden, hergestellten Salzgemische. Auch der bekannte Zusatz von weiteren bekannten fumgicid und insekticid wirkenden Stoffen, wie Phenolver- Bindungen und Chromaten bzw. Diehromaten, ändert an :dieser Unbeständigkeit jener festen Mischungen nichts.Mixtures of alkali fluorides with arsenic acid, arsenic acid or Arseniates are known as wood preservatives; but they show the same Bad situation like the only sparingly soluble salts, such as sodium fluoride or alkali silioofluorides, prepared salt mixtures. Also the well-known addition of other well-known fumgicid and substances with an insecticidal effect, such as phenol Bonds and chromates or Diehromats, changes: this instability of those solid mixtures nothing.

Beispiel Man mischt 18 Teile Kaliumbiluolid" 18 Teile saures Kaliumarseniat, 28 Teile Kaliumbichromat, 34 Teile Kalumcarbonat; 2 Teile Dinitrophenol.Example 18 parts of potassium biluolide are mixed, 18 parts of acid potassium arsenate, 28 parts of potassium dichromate, 34 parts of potassium carbonate; 2 parts of dinitrophenol.

Dieses Salzgemisch wird zweckmäßig in io- bis iq.oioiger Lösung zur Imprägnierung von Holz verwendet.This salt mixture is expediently in io- to iq.oioiger solution for Used for impregnation of wood.

Gleichzeitig können den neuen Konservierungsmitteln auch noch andere feste, an sich für den vorliegenden Zweck bekannte antiseptisch, fungicid oder insekticid wirkende oder- auch die Entflammbarkeit des Holzes herabsetzende Stoffe zugesetzt werden.At the same time, other preservatives can also be used solid antiseptic, fungicidal or insecticidal known per se for the present purpose Active substances or substances that reduce the flammability of the wood are added will.

Die Tränkung des Holzes mit den aus den festen Mischungen hergestellten Lösungen kann in üblicher Weise erfolgen.Impregnation of the wood with those made from solid mixtures Solutions can be done in the usual way.

Claims (1)

PATENTANSPRUCH: Holzkonservierungsmittel, bestehend aus einem Gemisch von Kaliümbifluorid oder Ammoniumbifiuorid, Kaliumbichromat; gegebenenfalls Arsenverbindungen und bzw: oder Phenolen, und .einer solchen Meng Kaliumcarbonat oder Kaliumbicarbonat, daß die wäßrige Lösung des Gemisches annähernd neutral ist, also in der Nähe des pH-Wertes 7 liegt:PATENT CLAIM: Wood preservative, consisting of a mixture of potassium bifluoride or ammonium bifluoride, potassium dichromate; possibly arsenic compounds and or: or phenols, and .an such amount of potassium carbonate or potassium bicarbonate, that the aqueous solution of the mixture is approximately neutral, that is, in the vicinity of the pH value 7 is:
DE1934G0088569 1934-08-04 1934-08-04 Wood preservatives Expired DE689319C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1934G0088569 DE689319C (en) 1934-08-04 1934-08-04 Wood preservatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1934G0088569 DE689319C (en) 1934-08-04 1934-08-04 Wood preservatives

Publications (1)

Publication Number Publication Date
DE689319C true DE689319C (en) 1940-03-16

Family

ID=7138843

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1934G0088569 Expired DE689319C (en) 1934-08-04 1934-08-04 Wood preservatives

Country Status (1)

Country Link
DE (1) DE689319C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE915863C (en) * 1942-07-24 1954-07-29 Dr Bruno Schulze Wood preservatives against animal and vegetable destroyers or to combat them in already infected wood
DE942892C (en) * 1949-10-03 1956-05-09 Gerardus Johannes Alp Henricus Wood preservatives

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE915863C (en) * 1942-07-24 1954-07-29 Dr Bruno Schulze Wood preservatives against animal and vegetable destroyers or to combat them in already infected wood
DE942892C (en) * 1949-10-03 1956-05-09 Gerardus Johannes Alp Henricus Wood preservatives

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