TERMIUM Plus®

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

ALUN [30 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 - external organization data 2022-09-16

English

Subject field(s)
  • Compartment - National Occupational Classification (NOC)

French

Domaine(s)
  • Tiroir – Classification nationale des professions (CNP)

Spanish

Save record 1

Record 2 2018-12-17

English

Subject field(s)
  • Chemical Elements and Compounds
  • Mineralogy
  • Geochemistry
Universal entry(ies)
7784-24-9
CAS number
DEF

A white or colourless crystalline compound [that] forms cubic or octahedral crystals that are soluble in cold water, very soluble in hot water, and insoluble in ethanol or acetone.

OBS

7784-24-9: Chemical Abstracts Service registry number corresponding to the molecular formulae KAl(SO4)2•12H2O or Al2(SO4)3,K2SO4,24H2O.

OBS

The IUPAC (International Union of Pure and Applied Chemistry) recommends the form "aluminium" instead of "aluminum."

OBS

aluminium potassium sulfate dodecahydrate: form recommended by the International Union of Pure and Applied Chemistry (IUPAC) for the systematic name corresponding to the Chemical Abstracts Service registry number 7784-24-9.

OBS

aluminium potassium sulfate: incomplete form.

Key term(s)
  • aluminum potassium sulfate dodecahydrate
  • aluminum potassium bis(sulfate) dodecahydrate
  • aluminum potassium sulfate

French

Domaine(s)
  • Éléments et composés chimiques
  • Minéralogie
  • Géochimie
Entrée(s) universelle(s)
7784-24-9
CAS number
DEF

Sulfate du système cristallin cubique, se présentant en agrégats massifs, en stalactites ou en cristaux octaédriques.

OBS

7784-24-9 : numéro de registre du Chemical Abstracts Service correspondant aux formules moléculaires brutes KAl(SO4)2•12H2O ou Al2(SO4)3,K2SO4,24H2O.

OBS

sulfate d'aluminium et de potassium dodécahydraté : forme recommandée par l'Union internationale de chimie pure et appliquée (UICPA) pour le nom systématique correspondant au numéro de registre du Chemical Abstracts Service 7784-24-9.

OBS

sulfate d'aluminium et de potassium : forme incomplète.

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Mineralogía
  • Geoquímica
Entrada(s) universal(es)
7784-24-9
CAS number
DEF

Sulfato doble de aluminio y potasio, hidratado, en el que el potasio o el aluminio pueden estar sustituidos por iones de su misma valencia. Se ha usado como curtiente, hemostático o mordiente.

OBS

Fórmula química: KAl(SO4)2•12H2O

Save record 2

Record 3 2018-02-20

English

Subject field(s)
  • Tanning and Currying By-Products (Leather Ind.)
DEF

A process of converting skins to leather based essentially upon the use ... of potassium alum, but sometimes of aluminium sulphate.

French

Domaine(s)
  • Tannerie et corroierie (sous-produits) (Ind. du cuir)
CONT

Le tannage à l'alun [...] est le procédé de tannage minéral le plus anciennement pratiqué.

OBS

Le terme «mégisserie» désignait autrefois uniquement la préparation par tannage à l'alun de peaux très souples, réalisées à partir de peaux de moutons, d'agneaux et de chevreaux, ces peausseries étant le plus souvent destinées à la ganterie. Pour cela, les peaux, après travail de rivière (épilage et confitage), sont foulées dans une composition constituée par une solution d'alun de potassium et de sel dans laquelle on délaie de la farine et du jaune d'œuf : c'est l'habillage de mégisserie [...]

Spanish

Save record 3

Record 4 2016-02-25

English

Subject field(s)
  • Bauxite Mining

French

Domaine(s)
  • Mines de bauxite
DEF

Lieu où l'on tire de l'alun.

Spanish

Save record 4

Record 5 2012-06-13

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
AlH4NO8S2
formula, see observation
Al2(SO4)3(NH4)2SO4.24H2O
formula, see observation
AlNH4(SO4)2·12H2O
formula, see observation
NH4Al(SO4)2·12H2O
formula, see observation
Al2(SO4)3,(NH4)2SO4,24H2O
formula, see observation
DEF

A chemical product in the form of odorless, colorless crystals having a strong astringent taste which is soluble in water and glycerol, is insoluble in alcohol, is derived by crystallization from a mixture of ammonium and aluminum sulfate and is used as a mordant in dyeing, in water and sewage purification, in sizing paper, in retanning leather, as a clarifying agent, as a food additive, in baking powders, in the cereal industries, as a buffer and a neutralizing agent in milling, in the manufacture of lakes, pigments, vegetable glue and artificial gems, for fireproofing, and in the treatment of fur.

OBS

aluminium ammonium bis(sulfate)dodecahydrate: form recommended by the IUPAC (International Union of Pure and Applied Chemistry).

OBS

The IUPAC recommends the form "aluminium" instead of "aluminum."

OBS

Chemical formula: AlH4NO8S2 or Al4(SO4)3(NH4)2SO4.24H2O or AlNH4(SO4)2·12H2O or NH4Al(SO4)2·12H2O or Al2(SO4)3,(NH4)2SO4,24H2O

Key term(s)
  • burnt ammonium alum
  • exsiccated ammonium alum

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
AlH4NO8S2
formula, see observation
Al2(SO4)3(NH4)2SO4.24H2O
formula, see observation
AlNH4(SO4)2·12H2O
formula, see observation
NH4Al(SO4)2·12H2O
formula, see observation
Al2(SO4)3,(NH4)2SO4,24H2O
formula, see observation
DEF

Produit chimique se présentant sous la forme de cristaux incolores, inodores, à saveur astringente, soluble dans l'eau et la glycérine, insoluble dans l'alcool, que l'on prépare en combinant des sulfates d'ammoniaque et d'aluminium, et que l'on utilise pour l'épuration des eaux, le mordançage des tissus, la tannerie, les laques, comme agent d'ignifugation, dans la fabrication des savonnettes et comme agent thérapeutique.

OBS

bis(sulfate) d'aluminium et d'ammonium dodécahydrate : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée).

OBS

Formule chimique : AlH4NO8S2 ou Al4(SO4)3(NH4)2SO4.24H2O ou AlNH4(SO4)2·12H2O ou NH4Al(SO4)2·12H2O ou Al2(SO4)3,(NH4)2SO4,24H2O

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Entrada(s) universal(es)
AlH4NO8S2
formula, see observation
Al2(SO4)3(NH4)2SO4.24H2O
formula, see observation
AlNH4(SO4)2·12H2O
formula, see observation
NH4Al(SO4)2·12H2O
formula, see observation
Al2(SO4)3,(NH4)2SO4,24H2O
formula, see observation
OBS

Fórmula química: AlH4NO8S2 o Al4(SO4)3(NH4)2SO4.24H2O o AlNH4(SO4)2·12H2O o NH4Al(SO4)2·12H2O o Al2(SO4)3,(NH4)2SO4,24H2O

Save record 5

Record 6 2011-07-29

English

Subject field(s)
  • Mineralogy
Universal entry(ies)
NaAl(SO4)2•12H2O
formula, see observation
DEF

A white monoclinic mineral of the alum group which consists of a hydrous sulfate of sodium and aluminum.

OBS

Chemical formula: NaAl(SO4)2•12H2O

French

Domaine(s)
  • Minéralogie
Entrée(s) universelle(s)
NaAl(SO4)2•12H2O
formula, see observation
DEF

Minéral du système monoclinique constitué de sulfate hydraté naturel d'aluminium et de sodium, se présentant en masses fibreuses de couleur blanche.

OBS

mendozite : De la localité de Mendoza (Argentine).

OBS

Formule chimique : NaAl(SO4)2•12H2O

Spanish

Campo(s) temático(s)
  • Mineralogía
Entrada(s) universal(es)
NaAl(SO4)2•12H2O
formula, see observation
OBS

Fórmula química: NaAl(SO4)2•12H2O

Save record 6

Record 7 2011-06-22

English

Subject field(s)
  • Chemical Elements and Compounds
  • Food Additives
DEF

[A chemical product in the form of] colorless crystals used in dyeing, paper making, tanning, food technology [and] to purify drinking water.

OBS

The IUPAC (International Union of Pure and Applied Chemistry) recommends the form "aluminium" instead of "aluminum."

Key term(s)
  • aluminum sodium sulphate
  • sodium aluminum sulphate
  • aluminium sodium sulphate
  • sodium aluminium sulphate

French

Domaine(s)
  • Éléments et composés chimiques
  • Additifs alimentaires
DEF

Composé chimique se présentant sous la forme de cristaux incolores efflorescents produits par la calcination d'un mélange de bauxite, d'acide sulfurique et de sulfate de sodium, utilisé, entre autres, comme mordant en teinture, comme imperméabilisant en papeterie, comme agent de purification des eaux potables, et pour la gravure.

Spanish

Save record 7

Record 8 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 8

Record 9 2011-01-31

English

Subject field(s)
  • Chemical Elements and Compounds
  • Leather Industry
  • Ceramics (Industries)
  • Inks and Colour Reproduction (Graphic Arts)
Universal entry(ies)
CrNH4(SO4)2·12H2O
formula, see observation
CrH4NO8S2
formula, see observation
Cr2(SO4)3,(NH4)2 SO4, 24H2O
formula, see observation
OBS

Properties: Green powder or deep violet crystals ... The aqueous solution is violet when cold, green when hot. ... Use: Mordant, tanning.

OBS

Chemical formula: CrNH4(SO4)2·12H2O or CrH4NO8S2 or Cr2(SO4)3,(NH4)2 SO4, 24H2O

French

Domaine(s)
  • Éléments et composés chimiques
  • Industrie du cuir
  • Céramique (Industries)
  • Encres et couleurs (Industrie graphique)
Entrée(s) universelle(s)
CrNH4(SO4)2·12H2O
formula, see observation
CrH4NO8S2
formula, see observation
Cr2(SO4)3,(NH4)2 SO4, 24H2O
formula, see observation
OBS

Cristaux bleu violet [...], soluble dans l'eau, les acides dilués, l'alcool. Utilisation : Tannerie, encres, céramique.

OBS

Formule chimique : CrNH4(SO4)2·12H2O ou CrH4NO8S2 ou Cr2(SO4)3,(NH4)2 SO4, 24H2O

Key term(s)
  • sulfate double d’ammonium et de chrome
  • alun de chrome et d’ammonium

Spanish

Save record 9

Record 10 2010-04-19

English

Subject field(s)
  • Wastewater Treatment
OBS

A process flow diagram was presented for treating surface water. The treatment process includes the following components: coarse screens, low lift pump station, flow splitter (for alum saturator).

French

Domaine(s)
  • Traitement des eaux usées
OBS

Équivalent proposé par la Société québécoise d'assainissement des eaux (SQAE), Montréal.

Spanish

Save record 10

Record 11 2005-11-29

English

Subject field(s)
  • Tanning and Currying By-Products (Leather Ind.)
DEF

[Referring to a leather] tanned with aluminum salts mixed with a variety of binders and protein sources, such as flour, egg yolk, etc.

OBS

Purists argue that alum-tanned leather is technically "tawed" and not tanned, as the resulting material will rot in water. Very light shades of leather are possible using this process, but the resulting material is not as supple as vegetable-tanned leather.

Key term(s)
  • alum tanned leather

French

Domaine(s)
  • Tannerie et corroierie (sous-produits) (Ind. du cuir)
CONT

Renforcement de la couverture par des bandes de cuir fixées par des lanières de cuir tanné à l'alun

Spanish

Save record 11

Record 12 2003-11-05

English

Subject field(s)
  • Chemical Elements and Compounds
  • Medication
  • Biochemistry

French

Domaine(s)
  • Éléments et composés chimiques
  • Médicaments
  • Biochimie

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Medicamentos
  • Bioquímica
Save record 12

Record 13 2003-10-09

English

Subject field(s)
  • Botany

French

Domaine(s)
  • Botanique

Spanish

Campo(s) temático(s)
  • Botánica
Save record 13

Record 14 2002-06-29

English

Subject field(s)
  • Preparation of Leather and Leather Articles
DEF

Hide's treatment with water solutions of aluminum salts.

French

Domaine(s)
  • Préparation des cuirs et des objets en cuir
CONT

Le tannage à l'aide de sels d'aluminium ou tannage à l'alun a été très employé et l'est encore de nos jours, mais à une faible échelle. Viennent ensuite d'autres procédés qui ont connu des succès divers: par ordre d'importance, citons les tannages aux sels de zirconium, au soufre, aux sels de fer, à la silice, aux polyphosphates, etc.

CONT

Tannage à l'alun pour doublures, vêtements, ganterie, etc.

Spanish

Save record 14

Record 15 2001-09-27

English

Subject field(s)
  • Mineralogy
  • Dyes and Pigments (Industries)
DEF

A cubical potassium alum formerly obtained in large quantities from Italian alunite, and highly valued by dyers on account of its freedom from iron.

CONT

... a quarry for rock alum, used in dyeing wool.

French

Domaine(s)
  • Minéralogie
  • Teintures et pigments (Industries)
DEF

Alun cristallisé en cubes [...] provenant [spécialement] de Tolfa près de Rome.

CONT

Chauffé, [l'alun] fond dans son eau de cristallisation à 91 °C; si on le laisse alors refroidir, il prend un aspect vitreux sous lequel on lui donne le nom d'alun de roche.

CONT

L'alun connu sous le nom d'alun de Rome provient de la carrière de Tolfa [...]

Spanish

Save record 15

Record 16 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 16

Record 17 2001-01-08

English

Subject field(s)
  • Chemical Elements and Compounds
  • Water Treatment (Water Supply)
DEF

Any of a series of double salts isomorphous with potash alum that may contain analogous elements in place of the potassium, aluminum, and sulfur [Ex.:] soda alum, chrome alum, selemium alum.

CONT

Wastewater treatment systems with facultative ponds use mostly alum or ferric chloride as coagulants to meet phosphorus removal standards.

OBS

"Alum" is also a synonym of "potassium alum", "ammonium alum", and "aluminum sulfate". See those records.

French

Domaine(s)
  • Éléments et composés chimiques
  • Traitement des eaux
DEF

Nom générique des sulfates doubles de formule générale M2SO4. M2(SO4)3. 24H2O, où M représente un métal alcalin ou l'ammonium, et [le second]M un métal trivalent : aluminium, fer ou chrome. [...] L'alun est le type d'une série de sulfates doubles hydratés, de composition analogues, de même forme cristalline et isomorphes.

Spanish

Save record 17

Record 18 2001-01-03

English

Subject field(s)
  • Chemical Elements and Compounds
  • Wastewater Treatment
CONT

Municipal wastewater treatment chemicals include calcium oxide; alum; activated alum, carbon, and silica; polymers; ion exchange resins; sodium hydroxide; chlorine; ozone; and corrosion inhibitors.

French

Domaine(s)
  • Éléments et composés chimiques
  • Traitement des eaux usées
DEF

Mélange de sulfate [double d'aluminium] et de charbon actif finement divisé.

Spanish

Save record 18

Record 19 2000-12-18

English

Subject field(s)
  • Chemical Elements and Compounds

French

Domaine(s)
  • Éléments et composés chimiques

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Save record 19

Record 20 2000-12-18

English

Subject field(s)
  • Chemical Elements and Compounds

French

Domaine(s)
  • Éléments et composés chimiques

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Save record 20

Record 21 2000-12-18

English

Subject field(s)
  • Chemical Elements and Compounds

French

Domaine(s)
  • Éléments et composés chimiques

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Save record 21

Record 22 2000-11-22

English

Subject field(s)
  • Spices and Condiments
OBS

A colerless aluminum salt, used in the food industry to give pickles extra crunch.

Key term(s)
  • powdered-alum
  • aluminum potassium sulfate

French

Domaine(s)
  • Épices et condiments

Spanish

Save record 22

Record 23 2000-10-18

English

Subject field(s)
  • Paper Manufacturing Processes
DEF

Blemish in a paper sheet resulting from alum crystals which did not dissolve in the paper furnish. These crystals are generally crushed and fall from the sheet in a powdery form during subsequent finishing operations.

French

Domaine(s)
  • Fabrication du papier

Spanish

Save record 23

Record 24 1996-05-17

English

Subject field(s)
  • Water Treatment (Water Supply)
  • Anti-pollution Measures
  • Water Pollution
  • Pulp and Paper
OBS

See the Termium record "lime coagulation".

French

Domaine(s)
  • Traitement des eaux
  • Mesures antipollution
  • Pollution de l'eau
  • Pâtes et papier
DEF

Méthode de traitement à base d'alun utilisée pour supprimer la couleur marron des effluents des usines de pâtes et papiers.

OBS

Voir aussi la fiche «coagulation par la chaux» dans Termium.

Spanish

Save record 24

Record 25 1987-03-25

English

Subject field(s)
  • Immunology
OBS

Alum-adsorbed vaccine, e.g. hepatitis B vaccine.

French

Domaine(s)
  • Immunologie
OBS

Vaccin adsorbé sur alun, par exemple, le vaccin anti-hépatite B.

OBS

Rapport hebdomadaire des maladies au Canada.

Spanish

Save record 25

Record 26 1987-03-25

English

Subject field(s)
  • Immunology
OBS

Canada Diseases Weekly Report.

French

Domaine(s)
  • Immunologie
OBS

Rapport hebdomadaire des maladies au Canada.

Spanish

Save record 26

Record 27 1986-04-23

English

Subject field(s)
  • Chemistry
DEF

Waterworks alum containing a small percentage of activated carbon.

French

Domaine(s)
  • Chimie
DEF

Alun utilisé dans les stations de traitement de l'eau, contenant un léger pourcentage de charbon actif.

Spanish

Save record 27

Record 28 1976-06-19

English

Subject field(s)
  • Chemical Elements and Compounds

French

Domaine(s)
  • Éléments et composés chimiques

Spanish

Save record 28

Record 29 1976-06-19

English

Subject field(s)
  • Chemistry

French

Domaine(s)
  • Chimie
OBS

Glossaire 41

Spanish

Save record 29

Record 30 1975-03-11

English

Subject field(s)
  • Photography
CONT

Chrome alum. Characteristics: violet crystals forming a purplish solution. When heated, or in the presence of sulphite, the solution gradually turns greenish and loses its hardening properties.

French

Domaine(s)
  • Photographie
CONT

l'alun (sulfate double de chrome et de potassium) [...] La dissolution à une température dépassant 50 degrés diminue fortement le pouvoir durcisseur de cet alun.

Spanish

Save record 30

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