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Ελαιούχος κηρός ( p i ε τ ρ ελαίου ), χ α ¼ η λ ή ς θ ε ρ ¼ ο κρασίας τήξεως, υδροκατερ- γ α σ ¼ έ ν ο ς · ψευδοκηρός
(a complex combination of hydrocarbons obtained by treatment of low-melting petroleum slack wax with hydrogen in the presence of a catalyst. it consists predominantly of saturated straight and branchedchain hydrocarbons having carbon numbers predominantly greater