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CORROSIVE AGENT [12 records]

Record 1 2014-12-30

English

Subject field(s)
  • Conservation and Repair of Books
  • Museums
CONT

Instead, the damaged areas of the manuscript were repaired and strengthened locally. Interleaving pages, impregnated with one of the tested antioxidants and a deacidification agent, were added to the manuscript during rebinding to delay migration of corrosive compounds.

French

Domaine(s)
  • Entretien des livres
  • Muséologie
CONT

Les parties endommagées du manuscrit ont plutôt été réparées et renforcées localement. Au moment de relier à nouveau le manuscrit, des pages imprégnées de l'un des antioxydants mis à l'essai et d'un agent désacidifiant ont été intercalées afin de retarder la migration des composés corrosifs.

Spanish

Save record 1

Record 2 2014-12-29

English

Subject field(s)
  • Conservation and Repair of Books
  • Museums
  • Heritage
CONT

Interleaving pages, impregnated with one of the tested antioxidants and a deacidification agent, were added to the manuscript during rebinding to delay migration of corrosive compounds.

French

Domaine(s)
  • Entretien des livres
  • Muséologie
  • Patrimoine
CONT

Au moment de relier à nouveau le manuscrit, des pages imprégnées de l'un des antioxydants mis à l'essai et d'un agent désacidifiant ont été intercalées afin de retarder la migration des composés corrosifs.

Spanish

Save record 2

Record 3 2011-08-26

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
NH2NH2
formula, see observation
H2N-NH2
formula, see observation
H4N2
formula, see observation
302-01-2
CAS number
DEF

A chemical compound having the formula NH2NH2 or H2N-NH2 or H4N2 which appears under the form of a colourless, oily, fuming, corrosive oily liquid, is a weaker base than ammonia, is usually made by dehydration of hydrazine hydrate, and which is used chiefly as a component of fuels for rocket and jet engines and in making salts(as the sulfates) and organic derivatives, but also as a blowing agent, a buoyancy agent for undersea salvage, an antioxidant(petroleum, detergents), a polymerization catalyst, a reactor cooling water, a scavenger for gases, a short-stopping agent, in agricultural chemicals, boiler feedwater, corrosion inhibitors, drugs(antibacterials, antihypertension), explosives, fuel cells, photographic developers, plating metals on glass and plastics, solder fluxes and Spandex fibers.

OBS

hydrazine: form recommended by the IUPAC (International Union of Pure and Applied Chemistry).

OBS

hydrazine: Exists also in the form of a hydrate (q.v.).

OBS

NH2NH2; H2N-NH2; H4N2

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
NH2NH2
formula, see observation
H2N-NH2
formula, see observation
H4N2
formula, see observation
302-01-2
CAS number
DEF

Produit chimique de formule NH2NH2 ou H2N-NH2 ou H4N2 se présentant sous la forme d'un liquide très toxique, corrosif et miscible à l'eau, fondant à 2 °C et bouillant à 113 °C, fabriqué industriellement par action de l'hypochlorite de sodium sur l'ammoniac ou l'urée.

CONT

[...] l'hydrazine [...] est une base moyenne [...] et un réducteur. Dans ses emplois d'ergol pour fusée, elle est en partie remplacée par la diméthylhydrazine. On l'utilise aussi comme désoxygénant pour l'eau des chaudières, comme agent gonflant des matières plastiques et comme combustible dans les piles à combustible.

OBS

NH2NH2; H2N-NH2; H4N2

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Entrada(s) universal(es)
NH2NH2
formula, see observation
H2N-NH2
formula, see observation
H4N2
formula, see observation
302-01-2
CAS number
OBS

Fórmula química: NH2NH2 o H2N-NH2 o H4N2

Save record 3

Record 4 2011-03-14

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
S2Cl2
formula, see observation
10025-67-9
CAS number
DEF

A yellow fuming irritating corrosive toxic liquid S2Cl2 that is made usually by reaction of chlorine with molten sulfur and often contains sulfur or sulfur dichloride and that is used chiefly as a chlorinating or sulfurizing agent or as both simultaneously, in making vulcanized oils, and in the cold cure of rubber; di-sulfur dichloride.

OBS

"Sulfur chloride" alone means any chloride of sulfur, as sulfur monochloride and sulfur dichloride.

OBS

Chemical formula: S2Cl2

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
S2Cl2
formula, see observation
10025-67-9
CAS number
OBS

Formule chimique : S2Cl2

Spanish

Save record 4

Record 5 2010-06-08

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
PBr5
formula, see observation
7789-69-7
CAS number
DEF

A chemical compound in the form of a yellow crystalline mass which is toxic and corrosive to skin and tissue and which is used as a brominating agent.

OBS

Chemical formula: PBr5

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
PBr5
formula, see observation
7789-69-7
CAS number
OBS

Formule chimique : PBr5

Spanish

Save record 5

Record 6 2004-03-09

English

Subject field(s)
  • Chemistry
  • Petrochemistry
DEF

Any of a group of saturated higher fatty acids derived from the gas-oil fraction of petroleum by extraction with caustic soda solution and subsequent acidification.

CONT

Gulf and West-coast crudes are relatively high in these acids. The commercial grade is a mixture, usually of dark color and unpleasant odor; corrosive to metals. The chief use of naphthenic acids is in the production of metallic naphthenates for paint driers and cellulose preservatives. Other uses are as solvents, detergents, rubber reclaiming agent, etc.

OBS

naphthenic acid: term standardized by ISO.

French

Domaine(s)
  • Chimie
  • Chimie du pétrole
DEF

Acides organiques, naturellement présents dans certains pétroles bruts, caractérisés par la présence d'un noyau naphténique et d'une ou plusieurs fonctions acides carboxyliques. [Définition normalisée par l'ISO.]

CONT

Les acides naphténiques sont des sous-produits utiles valorisés dans la fabrication des siccatifs pour peinture, d'émulsifiants et de savons.

OBS

acide naphténique : terme normalisé par l'ISO.

Spanish

Campo(s) temático(s)
  • Química
  • Petroquímica
DEF

Acidos grasos derivados del ciclopentano, ciclohexano, cicloheptano u otros naftenos homólogos procedentes del petróleo. Son solubles en disolventes orgánicos y muy poco en agua.

Save record 6

Record 7 2001-01-08

English

Subject field(s)
  • Deterioration of Metals
  • Chemistry
DEF

Substance which when in contact with a given metal will react with it. [definition standardized by ISO]

OBS

corrosive agent : term standardized by ISO.

French

Domaine(s)
  • Altération des métaux
  • Chimie
DEF

Substance qui, mise au contact d'un métal donné, réagit avec ce dernier. [définition normalisée par l'ISO]

OBS

agent corrosif : terme normalisé par l'ISO.

Spanish

Campo(s) temático(s)
  • Deterioro de los metales
  • Química
Save record 7

Record 8 1999-09-20

English

Subject field(s)
  • Deterioration of Metals
DEF

Environment that contains one or more corrosive agent. [Definition standardized by ISO. ]

CONT

Various coatings and wrappings are used on pipelines to provide protection from corrosive environments.

OBS

corrosive environment: term standardized by ISO.

French

Domaine(s)
  • Altération des métaux
DEF

Milieu contenant un ou plusieurs agents corrosifs. [Définition normalisée par l'ISO.]

OBS

milieu environnant corrosif : terme normalisé par l'ISO.

Spanish

Save record 8

Record 9 1996-11-07

English

Subject field(s)
  • Photoengraving
DEF

In photoengraving, an acid or any other corrosive agent capable of etching and dissolving a metal surface.

OBS

The term "mordant", though still occasionally found, is outmoded.

French

Domaine(s)
  • Photogravure
DEF

En photogravure, acide ou autre liquide corrosif capable de mordre le métal.

Spanish

Save record 9

Record 10 1993-06-28

English

Subject field(s)
  • Deterioration of Metals
DEF

Corrosion cell in which the potential difference arises from a difference in concentration of the corrosive agent(s) near its electrodes.

OBS

Term and definition standardized by ISO.

French

Domaine(s)
  • Altération des métaux
DEF

Pile de corrosion dont la différence de potentiel résulte d'une différence de concentration en agent(s) corrosif(s) au voisinage des électrodes.

OBS

Terme et définition normalisés par l'ISO.

Spanish

Save record 10

Record 11 1993-06-16

English

Subject field(s)
  • Deterioration of Metals
DEF

Corrosive agent necessary for formation of a passivating corrosion product.

OBS

Term and definition standardized by ISO.

French

Domaine(s)
  • Altération des métaux
DEF

Agent corrosif nécessaire à la formation d'un produit de corrosion passivant.

OBS

Terme et définition normalisés par l'ISO.

Spanish

Save record 11

Record 12 1993-06-16

English

Subject field(s)
  • Deterioration of Metals
DEF

Corrosion with gas as the only corrosive agent and without any aqueous phase on the surface of the metal.

OBS

Term and definition standardized by ISO.

French

Domaine(s)
  • Altération des métaux
DEF

Corrosion dont l'agent unique est un gaz, aucune phase aqueuse n'étant observée à la surface du métal.

OBS

Terme et définition normalisés par l'ISO.

Spanish

Save record 12

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