What is Brine ?
·
It is concentrated Sodium Chloride
(NaCh electrode which
9 usually use
graphite
Membrane Cell are inert
11
Anode M
t Cathode
Membrane
con-selective
-
·
-
(
O O
O L T
GH2 >
-
only allows cations (t)
-
Cl
O
↓ Na
00
H2 *
X Nat - H2d
Brine- Nat
gets pumped
C1- X
·
in
[membrane
gets pumped
·
in
2 + 20lt
Hzig)
-
> C2 + 22 2 H20 + 2e >
-
Cl
·
--
> anode
Nat start off with
passes through We
·
Cathode a
-
Membrane >
-
con
>
-
will bubble off anode Nat E Ol
because it's will attract
gas
a
Anode Cathode
Nat 3
is a halide -> Cl will competite
and will win when ItzO
with It20 - because
competing
water will win it is
stronger oxidising agent
a
Overall reaction
Anode : Cathode :
24 > Catze- 2+20 +ze
-
-Hz + 201-
-
Nte -
> Na
2 NaCl + 2H20
-
>
-
@z + Na + H2 + 20H
2 NaCl + 21t20 -
> 2NaOH +Cle + He
Hz uses CI uses Na ot (Caustic Soda)
for
making nylon making Pvc
large quantities soap
· · ·
for purification
·
Ammonia water
·
making detergents
fertilizer
bleaching
·
paper cloth indust
making
·
paper
hardening vegetable
·
acid
als
making HC
making viscose
·
rayon
making hydrogen peroxide solvents dyestuff E pharmaceuticals
-
making
·
↓ ·
paint ↓
·
Colourless dye Stuff white crystalline
flammable pharmaceuticals
·
rapidly absorbs moisture from air
gas
·
disinfectant insecticides CO2 from atmosphere
I