Le chlore Flashcards

1
Q

caractéristiques:(symbole, NA, Formule)

A

symb: Cl
NA:17
Formule Cl2

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2
Q

utilisation du chlore

A

industrie :

  • préparation de produits minéraux et organique
  • papeterie
  • industrie textile
  • Tt eau
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3
Q

obtention du CL

A

électrolyse sel marin

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4
Q

propriétés physique CL

A

gaz jaune verdâtre, odeur irritante, peu soluble, gaz lourd (accumulation en cave)
D 2,5

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5
Q

Propriétés chimique

A

Cl2+H2O=HCL+HCLO (corrosif et oxydant )

Acide chlorotique

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6
Q

Stockage Cl liquide

A

récipient en acier

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7
Q

CL+ soude=

A

eau de javel

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8
Q

Risque Cl inc et exp

A
  • incombustible
  • origine explosion
  • provoquer ou aggraver inc
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9
Q

Risque CL sur organisme

A

-gaz suffocant
-intox aigues mortelles
-brûlures peau muqueuse
VLE 1 ppm

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10
Q

CAT en cas de fuite CL

A
  • éviter manipulation brutale
  • amener fuite partie ext si mobile
  • obturer si possible (caoutchouc, mastic…)
  • ne pas utiliser d’eau
  • neutraliser par solution alcaline
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11
Q

CAT en cas Inc CL

A
  • évacuation dépôt
  • port ARI zone contaminée
  • périmètre
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12
Q

CAT sur organisme Cl

A
  • inhalations= oxygéno et CMC urg
  • ingestion= pas boire, manger, vomir CMC urg
  • projection cutanée= lavage CMC
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13
Q

Eau de javel + acide

A

Libération cl

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14
Q

Manipulation

A

Vêtement protection plus masque cartouche filtrante

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15
Q

mélange explosion avec chlore

A

-H, acétylène, ammoniac

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16
Q

concentration et risques

A
  • 1/1000 durée courte mort par asphyxie
  • 1/10000 5 min intolérable
  • 1/20000 30min danger oedeme
  • 1/250000 prolongée travail impossible
  • 1/2000000 prolongée séjour incommode
17
Q

obturer fuite avec

A

cheville en bois, plaque caoutchouc, mastic