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clorul

Clorul, or chlorine, is a chemical element with the symbol Cl and atomic number 17. It is the lightest halogen and a nonmetal. In Romanian usage, "clorul" refers to this element. Chlorine is highly reactive and does not occur freely in nature; it is mainly found as chloride salts in minerals and in seawater.

Chlorine is produced industrially by the electrolysis of sodium chloride solutions in the chlor-alkali process, yielding

Physically, chlorine at room temperature is a yellow-green gas with a strong, pungent odor. It is denser

Applications include water treatment and sanitation (drinking water disinfection, pool sanitization), paper and textile bleaching, and

Safety and environmental aspects: chlorine gas is toxic, corrosive, and can cause respiratory and eye irritation

History: chlorine was first isolated by Carl Wilhelm Scheele in 1774 and later recognized as an element

chlorine
gas,
sodium
hydroxide,
and
hydrogen.
It
can
also
be
generated
as
a
by-product
in
some
metallurgical
processes.
than
air
and
highly
reactive,
acting
as
a
powerful
oxidizing
agent.
When
dissolved
in
water,
it
forms
hydrochloric
acid
and
hypochlorous
acid,
contributing
to
its
disinfection
properties.
the
production
of
a
wide
range
of
chemicals,
notably
polyvinyl
chloride
(PVC)
and
various
organochlorine
compounds.
on
exposure.
It
reacts
vigorously
with
hydrogen
to
form
hydrogen
chloride.
Large
releases
require
prompt
emergency
response.
Environmental
concerns
include
the
use
of
organochlorine
compounds
and
the
potential
role
of
chlorine
chemistry
in
ozone
depletion.
by
Humphry
Davy.
The
name
chlorine
derives
from
the
Greek
chloros,
meaning
greenish-yellow,
reflecting
the
color
of
the
gas.