alun

Traductions

• anglais

  Auteur : Office québécois de la langue française, 1991

  Définition

  A term commonly but incorrectly applied by papermakers to various qualities of aluminium sulphate.

  Note :

  Used for precipitating the rosin size onto the pulp to give water resistancy to the paper. Chemically the name refers to compounds similar to the double salt K₂SO₄.Al₂(SO₄)₃.24 H₂O. In the paper industry, papermaker's alum is Al₂(SO₄)₃.14 H₂O or Al₂(SO₄)₃.18 H₂0, or a mixture of these hydrates. It is known as alumbecause it is used for the purposes for which alum was formerly used.

  Terme :

  1. alum

  Termes associés :

  1. aluminium sulphate
  2. papermaker's alum
  3. papermakers' alum

• latin

  Auteur : Office québécois de la langue française, 1991

  Terme :

  1. sulfas aluminicus