PL9715B1 - How to conserve a tree. - Google Patents

How to conserve a tree. Download PDF

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Publication number
PL9715B1
PL9715B1 PL9715A PL971526A PL9715B1 PL 9715 B1 PL9715 B1 PL 9715B1 PL 9715 A PL9715 A PL 9715A PL 971526 A PL971526 A PL 971526A PL 9715 B1 PL9715 B1 PL 9715B1
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PL
Poland
Prior art keywords
tree
copper
zinc
chlorides
sulphate
Prior art date
Application number
PL9715A
Other languages
Polish (pl)
Filing date
Publication date
Application filed filed Critical
Publication of PL9715B1 publication Critical patent/PL9715B1/en

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Sposób konserwowania drzewa przez nasycanie roztworami soli miedzi lub cyn¬ ku jest dawno znany. Zazwyczaj do tego celu sluza siarczany lub chlorki tych dwóch metali. Sole te maja jednak powazne wa¬ dy: po pierwsze dosc latwo ulegaja wymy¬ ciu w wilgotnym gruncie, przez co drzewo traci swa odpornosc, po drugie, laczac sie z substancjami bialkowemi w drzewie, od- szczepia ja polowe swego kwasu siarkowe¬ go wzglednie solnego, a poniewaz sa to kwasy mocne, dzialaja przeto niszczaco na drzewo i przeprowadzaja substancje in- krustacyjna,a nawet i sama celuloze w cu¬ kry; drzewo przez to kruszeje i spala sie, Aby usunac to niszczace dzialanie kwa¬ sów mocnych (siarkowego i solnego), za¬ stosowano octany miedzi i cynku do napa- jania drzewa, jednakze i one, choc nie ma¬ ja wad chlorków i siarczanów, gdyz kwas octowy jest kwasem slabym i nie dziala na drzewnik, okazaly sie niepraktyczneml; sa bowiem drogie, a poza tern latwo ule¬ gaja hydrolizie, przyczem wodziany mie¬ dzi i cynku ulegaja silnej absorbcji przez tkanke drzewna, nie przenikaja wglab drzewa, a tylko zapychaja cienka jej po¬ wloke zewnetrzna, po usunieciu której drzewo zaczyna znów butwiec. To samo dotyczy mrówczanów, boranów, lub wogó- le soli slabych kwasów.Zupelnie inaczej zachowuja sie miesza¬ ne sole miedzi lub cynku, zawierajace resztki kwasu mocnego i kwasu slabego, np. mrówczano-siarczan miedziowy: Cu2 (HCOOJ2S04l; nie wykazuja one wad za-równo czystych siarczanów wzglednie chlorków, jak i czystych octanów, wzgled¬ nie mrówczanów; w zetknieciu ,-z tkanka drzewna odszczepiaja jedynie kwas octo¬ wy wzglednie mrówkowy, a nie siarkowy ewentualnie solny i nie spalaja drzewa; hy- drolizuja sie tylko w niewielkim stopniu i przenikaja z latwoscia wglab drzewa.Takie mieszane sole mozna przygoto¬ wac, wedlug wynalazku, np. z siarczanu miedzi lub cynku i dodajac tyle np. mrów¬ czanu barowego, zeby polowa kwasu siar¬ kowego zostala stracona w postaci siar¬ czanu barowego, 2CuS04 + Ba(HCOO) = BaS04 + Cu, (HCOO)2SO±.W tym celu do 320 kg siarczanu mie¬ dziowego dodaje sie 230 kg mrówczanu barowego, poczem siarczan barowy odsa¬ cza sie.Zamiast soli baru mozna uzyc mrów¬ czanu wzglednie octanu innych metali, np. sodu, amonu i t. d,, powstale bowiem z tej reakcji siarczany sodu, amonu i t. d. nie przeszkadzaja impregnacji, byleby ilosc dodawanych mrówczanów, wzglednie oc¬ tanów, nie przekraczala polowy równowaz¬ nika siarczanu miedzi lub cynku. O ile za¬ miast siarczanów miedzi lub cynku uzyje sie chlorków i zmiesza w stosunku 1 rów¬ nowaznik chlorku miedzi lub cynku na v- równowaznika octanu lub mrówczanu ba¬ ru, sodu, amonu i t. d., powstaja wtedy chlorki baru, sodu, amonu i t. d., jako pro¬ dukty uboczne, które na calosc procesu impregnacji konserwowania drzewa pozo¬ staja bez wplywu,. PL PLThe method of preserving trees by impregnating them with copper or zinc salt solutions has long been known. Typically, sulfates or chlorides of these two metals are used for this purpose. However, these salts have serious disadvantages: firstly, they are easily washed away in moist soil, which makes the tree lose its resistance, and secondly, by combining with the protein substances in the tree, it breaks off half of its sulfuric acid, relatively salt, and because they are strong acids, they have a destructive effect on the tree and transform the incrustating substances, and even the cellulose itself, into sugar; the tree thus crumbles and burns. In order to remove this destructive effect of strong acids (sulfur and salt), copper and zinc acetates were used to infuse the tree, although they, although not having the disadvantages of chlorides and sulphates, since acetic acid is a weak acid and has no effect on the tree, it turned out to be impractical; because they are expensive and are easily hydrolyzed outside the area, because copper and zinc hydrates are strongly absorbed by the wood tissue, do not penetrate into the depth of the tree, but only clog the thin outer hemline, after removal of which the tree starts to rot again. The same applies to formates, borates, or generally the salts of weak acids. The behavior of mixed copper or zinc salts containing residual strong and weak acid, for example cupric formate sulphate: Cu2 (HCOOJ2SO4l, show no disadvantages), is quite different. both pure sulfates or chlorides, and pure acetates, or formates; in contact with wood tissue, they split off only acetic acid or formic acid, not sulfuric acid or hydrochloric acid, and do not burn the tree; they only hydrate in These mixed salts can be prepared, according to the invention, for example from copper or zinc sulphate, and by adding, for example, barium formate, that half of the sulfuric acid is lost as sulphate. barium, 2CuSO 4 + Ba (HCOO) = BaSO 4 + Cu, (HCOO) 2SO ±. For this purpose, 230 kg of barium formate are added to 320 kg of copper sulphate, and the barium sulphate is then filtered off. May or only the acetate of other metals, such as sodium, ammonium, etc., since the resulting sodium and ammonium sulfates, etc., do not interfere with impregnation, as long as the amount of added formates or acetates does not exceed half the equivalent of copper sulfate or zinc. If chlorides are used instead of copper or zinc sulphates and the ratio of copper or zinc chloride is mixed in a ratio of 1 to acetate or barium, sodium, ammonium and so on, barium, sodium, ammonium and ammonium chlorides are formed. thus, as by-products which remain unaffected throughout the impregnation process of tree preservation. PL PL

Claims (1)

1. Zastrzezenie patentowe. Sposób impregnowania drzewa, zna¬ mienny tern, ze stosuje sie mieszanine siar¬ czanów wzglednie chlorków miedzi lub cynku z mrówczanami lub octanami innych metali co najwyzej w stosunku polowy równowaznika siarczanu wzglednie chlor¬ ku miedzi lub cynku. Zjednoczone Zaklady Che mi c z n e ,,Z a g o z dzo nM Spólka Akcyjna. Druk L. Boguslawskiego, Warszawa. PL PL1. Patent claim. A method of impregnating a tree, known for its use as a mixture of copper or zinc sulphates or chlorides, with other metal formates or acetates, at most in the ratio of half the sulphate equivalent or copper or zinc chloride. United Plants Che mi c z n e ,, Z a g o z dzo nM Spólka Akcyjna. Printed by L. Boguslawski, Warsaw. PL PL
PL9715A 1926-04-09 How to conserve a tree. PL9715B1 (en)

Publications (1)

Publication Number Publication Date
PL9715B1 true PL9715B1 (en) 1928-12-31

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