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GAS POISONING [4 records]

Record 1 2012-02-03

English

Subject field(s)
  • Chemical Elements and Compounds
  • Medication
Universal entry(ies)
CH2(SH)CH(SH)CH2OH
formula, see observation
C3H8OS2
formula, see observation
DEF

A chemical compound in the form of a colorless liquid with an unpleasant, mercaptan odor which is used as a chelating agent developed as an antidote for lewisite, a war gas, and as an antidote for poisoning by other metals, such as mercury, antimony, nickel, chromium, and bismuth.

OBS

2,3-bis(sulfanyl)propan-1-ol: form recommended by the IUPAC (International Union of Pure and Applied Chemistry).

OBS

Chemical formula: CH2(SH)CH(SH)CH2OH or C3H8OS2

French

Domaine(s)
  • Éléments et composés chimiques
  • Médicaments
Entrée(s) universelle(s)
CH2(SH)CH(SH)CH2OH
formula, see observation
C3H8OS2
formula, see observation
DEF

Médicament préparé à l'origine comme curatif des lésions dues aux gaz de combat arséniés, et utilisé maintenant contre les intoxications dues à l'arsenic et à certains métaux lourds.

CONT

Le dimercaprol [...] se comporte comme chélateur et forme avec ces toxiques des dérivés éliminés par l'organisme. On l'emploie en solution huileuse par voie intramusculaire, sous contrôle médical.

OBS

2,3-bis(sulfanyl)propan-1-ol : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée).

OBS

Formule chimique : CH2(SH)CH(SH)CH2OH ou C3H8OS2

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Medicamentos
Entrada(s) universal(es)
CH2(SH)CH(SH)CH2OH
formula, see observation
C3H8OS2
formula, see observation
OBS

Propiedades: líquido aceitoso viscoso; incoloro con olor fuerte desagradable a mercaptanos; p.eb., 80° centígrados (1,9 mm), 140°C (40 mm); p.f. 77°C; p.e., 1,2385 (25/4°C) [...] soluble en aceites vegetales; moderadamente soluble en agua con descomposición; soluble en alcohol. [...] Peligros: intensamente irritante para los ojos y las membranas mucosas. Usos: medicina; antídoto de la lewisita, productos orgánicos arsenicales y de metales pesados.

CONT

Un antídoto de muchos venenos, el dimercaptopropanol (BAL, es decir, British anti-Lewisite), se ha estudiado de modo específico como antídoto de la lewisita [...]

OBS

Fórmula química : CH2(SH)CH(SH)CH2OH o C3H8OS2

Save record 1

Record 2 2010-06-22

English

Subject field(s)
  • Chemical Engineering
CONT

Traces of impurities in the fluid to which the catalyst is exposed can adsorb at the active sites and reduce or eliminate catalytic activity. This is called poisoning and the effective impurity is called a poison.

CONT

In many cases, the reformate is then sent to another reactor to remove impurities, such as carbon oxides or sulfur, before it is sent to the fuel cell stack. This prevents impurities in the gas from binding with the fuel cell catalysts. This binding process is also called "poisoning" since it reduces the efficiency and life expectancy of the fuel cell.

French

Domaine(s)
  • Génie chimique
CONT

Des traces d'impuretés dans le liquide auquel le catalyseur est exposé peuvent être adsorbées sur les sites actifs et réduire ou éliminer l'activité catalytique. Ce phénomène se nomme empoisonnement et l'impureté qui la produit est un poison.

Spanish

Campo(s) temático(s)
  • Ingenieria química
Save record 2

Record 3 2008-09-08

English

Subject field(s)
  • Chemical Elements and Compounds
  • Crop Protection
DEF

A group of organic compounds containing phosphorus that are used as insecticides.

CONT

In health, agriculture, and government, the word "organophosphates" refers to a group of insecticides or nerve agents acting on the enzyme acetylcholinesterase(the pesticide group carbamates also act on this enzyme, but through a different mechanism). The term is used often to describe virtually any organic phosphorus(V)-containing compound, especially when dealing with neurotoxins... Organophosphate pesticides(as well as sarin and VX nerve gas) irreversibly inactivate acetylcholinesterase, which is essential to nerve function in insects, humans, and many other animals. Organophosphate pesticides affect this enzyme in varied ways, and thus in their potential for poisoning.

OBS

Term used at the Canadian Grain Commission.

French

Domaine(s)
  • Éléments et composés chimiques
  • Protection des végétaux
DEF

Groupe de composés organiques contenant du phosphore et utilisés comme insecticides.

OBS

Terme en usage à la Commission canadienne des grains.

Spanish

Save record 3

Record 4 2000-06-30

English

Subject field(s)
  • Burners and Steamfitting
DEF

An appliance which is not provided with a flue pipe or flue collar, and from which the combustion products are freely emitted into the space in which the appliance is located.

CONT

Unvented appliance requiring no chimney ... Vent free appliances are not approved for sale in some USA States and Canada.

CONT

Never use a barbecue, camp stove, gas range or any other unvented appliance not designed as an indoor heat source, as it may lead to carbon monoxide poisoning.

French

Domaine(s)
  • Fumisterie et brûleurs
CONT

Le CO est un gaz incolore, inodore et non irritant. Il se dégage normalement lors de tout phénomène de combustion. Cela implique que tout appareil de chauffage ou de production d'eau chaude est une source potentielle de CO [...] Tout malaise dans une salle de bain où fonctionne un chauffe-eau ou un chauffe-bain doit d'abord évoquer le diagnostic d'intoxication oxycarbonée. La présence d'un chauffe-eau de 5L, non raccordé, alimentant une douche peut être un indice.

CONT

Les conduits de ventilation doivent avoir un tirage suffisant et être en bon état de fonctionnement; ils doivent être ramonés chaque fois qu'il est nécessaire et au moins tous les trois ans quand ils desservent des pièces où peut se trouver un appareil à combustion non raccordé à un conduit de fumée.

Spanish

Save record 4

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