DE1193231B - Hydrogen fluoride based wood preservative - Google Patents

Hydrogen fluoride based wood preservative

Info

Publication number
DE1193231B
DE1193231B DESCH30783A DESC030783A DE1193231B DE 1193231 B DE1193231 B DE 1193231B DE SCH30783 A DESCH30783 A DE SCH30783A DE SC030783 A DESC030783 A DE SC030783A DE 1193231 B DE1193231 B DE 1193231B
Authority
DE
Germany
Prior art keywords
hydrogen fluoride
larvae
wood preservative
wood
based wood
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
DESCH30783A
Other languages
German (de)
Other versions
DE1851123U (en
Inventor
Walter Richly
Dr Bruno Schulze
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.)
BRUNO SCHULZE DR
Original Assignee
BRUNO SCHULZE DR
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 BRUNO SCHULZE DR filed Critical BRUNO SCHULZE DR
Priority to DESCH30783A priority Critical patent/DE1193231B/en
Publication of DE1193231B publication Critical patent/DE1193231B/en
Pending 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
    • 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
    • B27K3/16Inorganic impregnating agents
    • B27K3/30Compounds of fluorine

Landscapes

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

Description

Holzschutzmittel auf Hydrogenfluorid-Basis Man kennt Holzschutzmittel zum vorbeugenden Schutz gegen tierische und pflanzliche Schädlinge oder zu ihrer Bekämpfung in bereits befallenem Holz, die auf unter anderem Ölbasis oder auf Hydrogenfluorid-Basis aufgebaut sind. Holzschutzmittel auf Hydrogenfluorid-Basis sind als Salze im Handel und werden erst an der Verwendungsstelle in Wasser gelöst; sie dringen verhältnismäßig tief in das zu behandelnde Holz ein.Hydrogen fluoride-based wood preservatives Wood preservatives are known for preventive protection against animal and vegetable pests or for their Combat in already infested wood, based on oil or hydrogen fluoride, among other things are constructed. Hydrogen fluoride-based wood preservatives are commercially available as salts and are only dissolved in water at the point of use; they penetrate proportionally deep into the wood to be treated.

Seit mehreren Jahren ist es üblich, den handelsüblichen Holzschutzmitteln auf Ölbasis Kontaktinsektizide zuzusetzen, um die Abtötungsgeschwindigkeit zu vergrößern und die Wirkung der Mittel zu steigern. Man benutzt als Kontaktinsektizide öllösliche organische Stoffe. Bei Holzschutzmitteln auf Hydrogenfluorid-Basis lassen sich diese Kontaktinsektizide nicht verwenden, weil sie nicht oder nur sehr wenig wasserlöslich sind und in Form von Emulsionen nicht genügend tief in das Holz eindringen.For several years it has been customary to use commercially available wood preservatives add oil-based contact insecticides to increase the rate of kill and to increase the effectiveness of the means. Oil-soluble insecticides are used as contact insecticides organic substance. In the case of wood preservatives based on hydrogen fluoride, these can be used Do not use contact insecticides because they are not or very little soluble in water and in the form of emulsions do not penetrate deep enough into the wood.

Aufgabe der Erfindung ist die Entwicklung eines Holzschutzmittels auf Hydrogenfluorid-Basis mit wirkungsbeschleunigenden Stoffen, die als wasserlösliches Salz dem als Salz im Handel befindlichen Holzschutzmittel auf Hydrogenfluorid-Basis zugesetzt sind.The object of the invention is to develop a wood preservative based on hydrogen fluoride with substances that accelerate the effect, which are water-soluble Salt the hydrogen fluoride-based wood preservative commercially available as salt are added.

Nach eingehenden Tierversuchen mit Anobiumpunetatum-Larven und auch mit großen Hausbocklarven wurde als Lösung der Aufgabe der erfindungsgemäße Vorschlag entwickelt, dem Holzschutzmittel auf Hydrogenfluorid-Basis, z. B. einem Gemisch aus Kaliumhydrogenfluorid und Ammoniumhydrogenfluorid, einen Zusatz von 0,0025 bis 1 Gewichtsprozent Natriummonofluoracetat beizugeben.After detailed animal experiments with Anobiumpunetatum larvae and also with large house buck larvae, the proposal according to the invention was the solution to the problem developed, the wood preservative based on hydrogen fluoride, z. B. a mixture of potassium hydrogen fluoride and ammonium hydrogen fluoride, an addition of 0.0025 to 1 percent by weight sodium monofluoroacetate to be added.

Das Ergebnis sei an folgenden Versuchsbeispielen erläutert 1. Einem handelsüblichen Hydrogenfluoridgemisch wurde 0,5% Natriumfluoracetat beigemischt. Von dem Gemisch wurde eine 20%ige Lösung in Wasser hergestellt. Mit der Lösung wurden nach DIN 52 623 Kiefern-Normklötzchen mit etwa 2,8 kg Salzgemisch, bezogen auf 1 cbm Holz, voll getränkt und anschließend 4 Wochen lang an der Luft gelagert. Danach wurden lebende Larven von Anobium punctatum in je eine Bohrung von einer Breitseite des Holzklötzchens aus eingebracht. Die mit den Larven versehenen Probeklötzchen wurden in Hygrostaten bei 20°C und 70 bis 75 % relativer Luftfeuchtigkeit untergebracht. Nach 4 Wochen wurde das Holz aufgespalten, und die Nachprüfung ergab, daß alle Larven tot waren.The result is explained using the following test examples 1. One commercial hydrogen fluoride mixture was admixed with 0.5% sodium fluoracetate. A 20% solution in water was made from the mixture. With the solution were according to DIN 52 623 pine standard blocks with about 2.8 kg salt mixture, based on 1 cbm wood, fully soaked and then stored in the air for 4 weeks. Thereafter were living larvae of Anobium punctatum in one hole each from one broad side of the wooden block introduced. The test blocks with the larvae were housed in hygrostats at 20 ° C and 70 to 75% relative humidity. After 4 weeks the wood was split open and inspection showed that all larvae were were dead.

2. Einem handelsüblichen Hydrogenfluoridgemisch wurde 1% Natriumfluoracetat beigemischt. Von dem Gemisch wurde eine 20%ige Lösung in Wasser hergestellt. Mit der Lösung wurden wie beim Versuch 1 Kiefernholzklötzchen getränkt und gelagert. Als Versuchstiere dienten diesmal größere, besonders giftresistente Hausbocklarven im Gewicht von etwa 200 mg. Bereits nach 4wöchiger Versuchsdauer waren alle Hausbocklarven tot und verfärbt. Die Abtötung muß sehr bald erfolgt sein, da sich die Tiere nicht eingebohrt hatten.2. A commercial hydrogen fluoride mixture was added 1% sodium fluoroacetate mixed in. A 20% solution in water was made from the mixture. With As in the experiment 1, pinewood blocks were soaked in the solution and stored. This time, larger, particularly poison-resistant house buck larvae served as test animals weighing about 200 mg. After just 4 weeks of the experiment, all of the house buck larvae were found dead and discolored. The killing must take place very soon, since the animals do not had drilled into them.

Verwendet man das Schutzsalz in einer Konzentration von 2,8 kg/m3 ohne Zusatz von Natriummonofluoracetat, so ergibt sich nach einer Versuchszeit von 4 Wochen im Durchschnitt für Anobienlarven eine tote vier lebende Larven und für große Hausbocklarven fünf lebende Larven.If the protective salt is used in a concentration of 2.8 kg / m3 without the addition of sodium monofluoroacetate, after a test time of 4 weeks on average for anobia larvae and for one dead four live larvae large house buck larvae five live larvae.

Claims (1)

Patentanspruch: Holzschutzmittel auf Hydrogenfluorid-Basis, z. B. Gemische aus Kaliumhydrogenfluorid und Ammoniumhydrogenfluorid, d a d u r c h g e k e n nz e i c h n e t, daß dem Schutzsalz 0,0025 bis 1 Gewichtsprozent Natriummonofluoracetat zugesetzt sind. In Betracht gezogene Druckschriften: Deutsche Auslegeschriften Nr. 1006 144, 1021158. Claim: wood preservatives based on hydrogen fluoride, z. B. Mixtures of potassium hydrogen fluoride and ammonium hydrogen fluoride, dadurchg eken nz eichnet that 0.0025 to 1 percent by weight of sodium monofluoroacetate are added to the protective salt. Publications considered: German Auslegeschriften No. 1006 144, 1 021 158.
DESCH30783A 1962-01-04 1962-01-04 Hydrogen fluoride based wood preservative Pending DE1193231B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH30783A DE1193231B (en) 1962-01-04 1962-01-04 Hydrogen fluoride based wood preservative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH30783A DE1193231B (en) 1962-01-04 1962-01-04 Hydrogen fluoride based wood preservative

Publications (1)

Publication Number Publication Date
DE1193231B true DE1193231B (en) 1965-05-20

Family

ID=7431865

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH30783A Pending DE1193231B (en) 1962-01-04 1962-01-04 Hydrogen fluoride based wood preservative

Country Status (1)

Country Link
DE (1) DE1193231B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3714051A1 (en) * 1987-04-28 1988-11-17 Desowag Materialschutz Gmbh AGENTS FOR THE PRESERVATION OF WOOD AND WOOD MATERIAL

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1006144B (en) * 1956-03-10 1957-04-11 Hoechst Ag Water-soluble wood preservative containing salts of divalent or trivalent iron
DE1021158B (en) * 1956-08-25 1957-12-19 Hoechst Ag Process for the leach-resistant impregnation of wood, wood-based materials and textiles endangered by fungal and insect infestation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1006144B (en) * 1956-03-10 1957-04-11 Hoechst Ag Water-soluble wood preservative containing salts of divalent or trivalent iron
DE1021158B (en) * 1956-08-25 1957-12-19 Hoechst Ag Process for the leach-resistant impregnation of wood, wood-based materials and textiles endangered by fungal and insect infestation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3714051A1 (en) * 1987-04-28 1988-11-17 Desowag Materialschutz Gmbh AGENTS FOR THE PRESERVATION OF WOOD AND WOOD MATERIAL

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