TERMIUM Plus®

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EMULSIFIER [9 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2016-02-29

English

Subject field(s)
  • Chemical Engineering
  • Anti-pollution Measures
  • Water Pollution
  • Solvents and Petroleum Spirits
CONT

Oil slick dispersants. When oil ... is treated with a suitable surface active agent and agitation applied, the oil is broken up into particles ... so small that they constitute an oil-in-water emulsion ... Dispersants serve to increase the surface area of an oil spill and disperse oil globules throughout the layer volume water. This causes an accelerated degradation of oil by microbiological action.

OBS

The chemicals used to disperse the oil are emulsifiers. Although a chemist would never confuse the terms dispersant and emulsifier, the former designating a product which encourages the distribution of finely divided solids in a fluid, either liquid or gas, the latter referring to a product which encourages the colloidal dispersion of one liquid in another, the terms are synonymous in the field of oil pollution control. This is explained by the following sentence taken from "The Control of oil pollution on the sea and inland waters", edited by J. Wardley-Smith (source COCOB): "It was found ... [that the product] when sprayed on to the oil, effectively softened and dispersed it by means of emulsification ..." The dispersion is accomplished by products which emulsify the oil, i.e., emulsifiers. Dispersion is used in its general sense and hence dispersant simply means a product that causes spreading. Also dispersant is used more frequently than emulsifier.

French

Domaine(s)
  • Génie chimique
  • Mesures antipollution
  • Pollution de l'eau
  • Solvants et essences spéciales (Pétrole)
DEF

Produit contenant des solvants et des tensioactifs qui, répandu sur une nappe de pétrole en mer, provoque le fractionnement de celle-ci en gouttelettes et facilite sa dispersion.

CONT

Produits émulsifiants ou dispersants. Ces produits [...] sont pratiquement tous des produits chimiques. Leur action [...] consiste à répartir une pollution de surface dans le volume de la mer, sous forme de fines particules. L'on espère, par ce procédé, favoriser l'action des bactéries et accélérer la biodégradation naturelle des hydrocarbures.

Key term(s)
  • agent de dispersion

Spanish

Campo(s) temático(s)
  • Ingenieria química
  • Medidas contra la contaminación
  • Contaminación del agua
  • Solventes y bencinas especiales (Petróleo)
DEF

Agente tensioactivo adicionado a un medio en suspensión para originar la separación uniforme de partículas sólidas muy finas.

Save record 1

Record 2 2015-12-15

English

Subject field(s)
  • Chemistry
  • Petrochemistry
  • Rubber
DEF

A surface-active substance used to facilitate the suspension of an immiscible liquid compounding ingredient in an aqueous system.

OBS

emulsifying agent: term and definition standardized by ISO.

French

Domaine(s)
  • Chimie
  • Chimie du pétrole
  • Caoutchouc
DEF

Substance exerçant une action superficielle utilisée pour faciliter la suspension dans un système aqueux d'un ingrédient de mélange liquide non miscible.

OBS

agent émulsifiant : terme et définition normalisés par l'ISO.

OBS

agent émulsionnant : terme normalisé par l'AFNOR.

Spanish

Campo(s) temático(s)
  • Química
  • Petroquímica
  • Caucho
OBS

Agente que en pequeñas cantidades facilita la formación de una emulsión o mejora su estabilidad coloidal al disminuir la velocidad de agregación o de coalescencia de las partículas dispersas.

Save record 2

Record 3 2007-08-22

English

Subject field(s)
  • Industrial Tools and Equipment
DEF

A machine which breaks down an oil and water mixture to very small particles, resulting in a stable emulsion.

French

Domaine(s)
  • Outillage industriel
DEF

Appareil utilisé pour préparer des émulsions.

Spanish

Save record 3

Record 4 2003-11-19

English

Subject field(s)
  • Chemistry
  • Food Additives
DEF

... [a] material ... added to decrease the tendency to separate or to increase the stability of ... [an] emulsion.

OBS

emulsifier; emulsifying agent: terms standardized by ISO.

French

Domaine(s)
  • Chimie
  • Additifs alimentaires
DEF

Se dit d'un composé dont la présence favorise la formation d'une émulsion ou sa conservation.

CONT

Les émulsifiants sont des molécules amphiphiles comprenant une partie hydrophobe (chaîne carbonée) et une partie hydrophile (fonction acide, ammonium ou polyoxyde d'éthylène). Selon la grosseur relative des deux parties, l'émulsifiant sera favorable à la création d'émulsions «huile dans eau» ou d'émulsions «eau dans huile».

OBS

agent émulsionnant; émulsifiant : termes normalisés par l'AFNOR et l'ISO.

Key term(s)
  • émulsionneur stabilisant
  • émulgateur

Spanish

Campo(s) temático(s)
  • Química
  • Aditivos alimentarios
DEF

Aditivo alimentario que provoca la formación y estabilidad de una emulsión.

OBS

Término utilizado para los fines del Codex Alimentarius.

Save record 4

Record 5 2002-01-14

English

Subject field(s)
  • Chemistry

French

Domaine(s)
  • Chimie

Spanish

Campo(s) temático(s)
  • Química
Save record 5

Record 6 2001-01-08

English

Subject field(s)
  • Chemistry
  • Food Additives
CONT

... gum tragacanth is ... effective as a suspending agent, due to its long shelf life and acid resistance.

Key term(s)
  • emulsifier

French

Domaine(s)
  • Chimie
  • Additifs alimentaires
CONT

[...] par exemple, on emploie [...] [des] additifs: [...] comme agents de fixation: dans le lait au chocolat pour empêcher que des particules de chocolat ne se déposent au fond du récipient.

OBS

Ces termes semblent douteux, notamment parce que, dans les documents consultés, c'est aux émulsifiants qu'on attribue les propriétés évoquées ci-dessus.

Key term(s)
  • émulsifiant

Spanish

Campo(s) temático(s)
  • Química
  • Aditivos alimentarios
Save record 6

Record 7 2000-09-13

English

Subject field(s)
  • Petroleum Technology - Equipment
DEF

A machine (as a mixer) for emulsifying.

OBS

emulsify: to convert (as an oil) into an emulsion.

OBS

emulsion: (1) an intimate mixture of two incompletely miscible liquids (as oil and water) in which one of the liquids in the form of fine droplets is incompletely miscible liquids (as oil and water) in which one of the liquids in the form of fine droplets is dispersed in the other usually with the aid of an emulsifier ...

French

Domaine(s)
  • Appareillage (Technologie pétrolière)
DEF

Appareil servant à provoquer une émulsion.

CONT

Émulsionneur-disperseur. Cet appareil permet d'obtenir instantanément un produit parfait, aussi bien au point de vue qualitatif que celui d'optique et absolument exempt d'air.

Spanish

Save record 7

Record 8 1996-11-07

English

Subject field(s)
  • Chemistry
  • Inks and Colour Reproduction (Graphic Arts)
DEF

A substance which facilitates the dispersion of one liquid into another; used for mixing ink.

French

Domaine(s)
  • Chimie
  • Encres et couleurs (Industrie graphique)
DEF

Substance qui facilite la dispersion d'un liquide dans un autre; utilisée pour mélanger les encres.

Spanish

Save record 8

Record 9 1989-01-24

English

Subject field(s)
  • Medical and Surgical Equipment

French

Domaine(s)
  • Équipement médico-chirurgical
DEF

Appareil servant à préparer les émulsions.

Spanish

Save record 9

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