Treemossabsolute(Pseudeverniafurfuracea)

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Warnung

• Gefahrenhinweise

  H317：Kann allergische Hautreaktionen verursachen.

• Sicherheit

  P261：Einatmen von Staub vermeiden.

  P272：Kontaminierte Arbeitskleidung nicht außerhalb des Arbeitsplatzes tragen.

  P280：Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

  P302+P352：BEI BERÜHRUNG MIT DER HAUT: Mit viel Wasser/... (Hersteller kann, falls zweckmäßig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen.

  P321：Besondere Behandlung

  P333+P313：Bei Hautreizung oder -ausschlag: Ärztlichen Rat einholen/ärztliche Hilfe hinzuziehen.

  P363：Kontaminierte Kleidung vor erneutem Tragen waschen.

  P501：Inhalt/Behälter ... (Entsorgungsvorschriften vom Hersteller anzugeben) zuführen.

Treemossabsolute(Pseudeverniafurfuracea) Chemische Eigenschaften,Einsatz,Produktion Methoden

• Occurrence

  In the lichens, Evernia furfuracea (L.) Mann and Usnea harhata (L.) Wigg (Fam: Usneaceae), found on the bark of fir and pine trees (Guenther, 1952). The lichens include a large number of species, many of which have been studied with regard to their composition and properties (Kjellman. 1957). By selective extraction, several classes of lichen substances can be separated, accounting for 1-8% of the dry weight of lichens and including fatty acids, lactones, triterpenoids, polyhydric alcohols and aromatic substances such as depsides, depsidones, quinones and derivatives of pulvic acid, xanthone. dibenzofuran. and diketopiperazine (Mitchell & Armitage. 1965). One of the most important and widely distributed of the lichen acids is usnic acid, a dibenzofuran first isolated from Usnea harhata. which occurs in considerable quantities in a wide variety of species (Savich. Litvinov & Moiseeva. 1960). Lichen polysaccharides are isolated chiefly from the aqueous extracts (Shibata. Nishikawa. Tanaka, Fukuoka & Nakanishi, 1968c).

• synthetische

  By extraction of the moss, twigs and needles with volatile solvents and their subsequent removal, usually under vacuum.

• Definition

  Extractives and their physically modified derivatives. Evernia furfuracea and Usnea barbata, Usneaceae.

• Toxicity evaluation

  The acute oral LD₅₀ in rats was reported as 4.33 ml/kg (4.01-4.68 ml/kg), and the acute dermal LD₅₀ in rabbits exceeded 5 g/kg (Levenstein, 1974). Lichen substances appear to be non-toxic to reindeer and other animals that consume large amounts of lichens in their normal diet (S?derberg, 1953).

• Hazard

  Low toxicity by ingestion and skin contact. A mild skin irritant.

Treemossabsolute(Pseudeverniafurfuracea) Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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