TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

iron alum [2 records]

Record 1 2011-06-03

English

Subject field(s)
  • Mineralogy
Universal entry(ies)
FeAl2(SO4)4•22H2O
formula, see observation
DEF

A yellowish mineral which consists of a hydrous sulfate of iron and aluminum, occurring in silky fibrous forms.

OBS

Named from the Latin "halotrichum," hair salts, in allusion to its fibrous habit.

OBS

Halotrichite and alunogen have also been reported as existing as efflorescent masses of hair-like crystals, and were described as 'hair salt' in Dana's Mineralogy.

OBS

Chemical formula: FeAl2(SO4)•22H[ subscript 2O

French

Domaine(s)
  • Minéralogie
Entrée(s) universelle(s)
FeAl2(SO4)4•22H2O
formula, see observation
DEF

Variété d'epsomite, sulfate hydraté naturel d'aluminium et de fer, dont les cristaux ont l'aspect fibreux de plumes d'oiseau.

OBS

Formule chimique : FeAl2(SO4)•22H[ indice 2O

Spanish

Campo(s) temático(s)
  • Mineralogía
Entrada(s) universal(es)
FeAl2(SO4)4•22H2O
formula, see observation
DEF

Sulfato hidratado de hierro y aluminio [...]; es un mineral fibroso, blancuzco o verde, soluble en el agua, que cristaliza en el sistema monoclínico.

OBS

Fórmula química: FeAl2(SO4)•22H[ subíndice 2O

Save record 1

Record 2 2001-01-08

English

Subject field(s)
  • Photography
  • Chemical Elements and Compounds
OBS

chemical used in certain toners and reducers [Characteristics: Purplish crystals, give a yellowish solution.]

French

Domaine(s)
  • Photographie
  • Éléments et composés chimiques
OBS

cristaux rose violacé, efflorescents, assez solubles dans l'eau.

Spanish

Save record 2

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