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Material Safety Data Sheet
(Hydrochloric Acid)
Section 1
Chemicals and Corporation Identify
Chinese name of chemicals: Yansuan
Common name or trade name
of chemicals: None
English name of
chemicals: Hydrochloric Acid
Section 2 Component
Informa
tion Pure chemicals √ Mixture
Name of chemicals:
Hydrochloric Acid Noxious
components
Content (%)
CAS NO
Hydrochloric Acid
31%
7647-01-1
Molecular weight: 36.46
Molecular formula: HCL
Section 3 The Summary of Risk
Risk category: Grade 8.1 Acid
corrosives
Route of entry:
Eye or skin contact, inhaling or ingesting
Health hazard:
Acute: Inhaling: Exposure to the steam
or smoke can cause acute poisoning, such as
conjunctivitis, a
burning
sensation
on
nose
and
oral
mucosa,
epistaxis, gingiva
bleeding,
bronchitis,etc.
Eye or skin
contact: It can cause chemical burns.
Chronic
toxicity:
The
long-term
exposure
will
cause
chronic
rhinitis, chronic
bronchitis, dental erosion and skin
lesions.
Ingesting: Wrongly ingesting
will cause gastrointestinal burn and ulcerative,
even can
cause gastric perforation,
peritonitis and etc.
Carcinogenicity: No data available.
Environment hazards: The substance is hazard to
the environment. Please pay attention
to the pollution to water and soil.
Explosion
hazard:
This
substance
is
non-inflammable, but
strongly
corrosive
and
strongly irritant and
can cause human body burns.
Section 4 Emergency
Measures
Skin contact: Take
off the polluted clothing immediately and wash
with large flowing
water for at least
15 minutes. See a doctor.
Eye
contact:
Rise
eyelid
immediately
and
wash
with
large
flowing
water
or
physiological saline for at least 15
minutes. See a doctor.
Inhaling:
Remove
the
site
to
air-fresh
place
rapidly
and
keep
the
airway
open.
If
breathing
is
difficult, administer
oxygen.
If
breathing
has
stopped, give
artificial
respiration immediately and seek for
medical attention.
Ingesting: Gargle with water and drink
the milk or egg-white. See a doctor.
Section 5 Fire Fighting
Measures
Hazard
properties:
The
substance
can
react
with
active
metal
powder
releasing
the
hydrogen, react with cyanide producing
hypertoxic hydrogen cyanide and react with
alkali issuing a large amount of heat.
It has strongly causticity.
Harmful combustible
substance: Hydrogen chloride
Extinguishing
methods
and
extinguishing
agents:
The
mist
water,
sand
and
carbon
dioxide fire extinguisher are
available. Neutralize with the alkaline
substances, such
as sodium
bicarbonate,sodium carbonate, hydrated lime, and
so on. Fighting the blaze
with plenty
of water is feasible too.
Fire precautions: No data available.
Section 6
Emergency Measures for Leakage
Emergency
measures
for
leakage:
Evacuate
the
personnel
in
leakage-contaminated
areas
to
a
safe
area
and
isolate
with
strict
restrictions
on
access.
Suggest
the
emergency crews wear
self sufficient positive-pressure respirator and
anti-acid&alkali
work
clothing.
Don’t
contact
the
leakage
directly.
Cut
off
the
leak
source
as
far
as
possible.
Prevent people into restrictive space such as
sewer, drainage ditch and so on.
Eliminating methods: If the leak is
small, we can mix it with sand, dry lime or soda
ash. We also can wash it with plenty of
water; drain the wash water into wastewater
system after diluting. If the leak is
large, uptake by constructed diking or digged pit;
transfer them into the tanker or
special collector with pump for recycle or ship to
the
waste disposal sites to deal with.
Section 7
Operation and Storage
Operation
cautions:
Airtight
operation
and
pay
attention
to
the
ventilation.
Operate
should
be
mechanized
and
automated
as
far
as
possible.
Operators
must
receive
special training and
strictly abide by the operating instructions.
Suggest that operator
wear
self-priming
filter
gas
mask
(full
cover),
acid
＆
alkali
resistant
rubber
clothing
and
acid
＆
alkali
resistant
rubber
gloves.
Keep
away
from
the
flammable
or
combustible substance. Prevent the
steam leaking to the workplace. Avoid contacting
with
alkalis, amines, alkali
metal.
Load
and
unload
gently
when
transporting
to
prevent
damaging
the
package
and
container.
Equip
with
leakage
emergency
treatment
facility. The emptied containers may remain
hazard.
Storage
notes: Store in a cool, well ventilated warehouse.
Storage temperature is less
than
30
℃
,and the relative
humidity is less than 85%. Keep the container
sealed. Keep
separate
from
alkalis, amines, alkali
metal
and
flammable
or
combustible
substance
and be careful not to place them
together. The leakage emergency treatment facility
and appropriate collecting containers
should be available in the storage area.
Section 8
Exposure Controls/ Personal Protection
Maximum allowable
concentration: Chinese
MAC
（
mg/m 3 ) 15
Monitoring
methods
：
Mercury thiocyanate
colorimetric method
Engineering
controls:
Operate
in
a
sealed
area
and
pay
attention
to
ventilation.
Handling should
be mechanization and automation as far as
possible. Provide safety
shower and
eyewash facility.
Respiratory
protection:
If
it
is
possible
to
expose
to
the
smog, wear
self-supporting
filter
mask
（
full
face
task
）
or
air
respirator.
Oxygen
breathing
apparatus
are
recommended to wear when emergency
rescuing or evacuating.
Eyes
protection:
Wear
chemical
safety
goggles
Body
protection:
Wear
acid
＆
alkali
resistant rubber clothing Hands
protection: Wear acid
＆
alkali
resistant rubber gloves
Other
protections:
No
smoking, eating
and
drinking
in
working
site.
Take
a
shower
and put on clean clothes after work.
Place the contaminative clothes alone and wash
for use. Keep a good health habit.
Section 9
Physical and Chemical Properties
Appearance and character:
Liquid with yellowish and pungent odor
Melting
point(
℃
):-114.8(pure)
Relative
density(water=1)
：
1.187
Boiling point:(
℃
)
：
108.6
（
20%
）
Relative vapor density
（
water=1
）
：
1.
259
Saturated
vapor
pressure(Kpa):
30.66(21
℃
)
Combustion
heat
：
Not
applicable
Critical temperat
ure
（℃）
：
Not
applicable
Critical pressure
（
MPa
）
：
Not
applicable
Logarithm of
octanol-water partition coefficients: Not
applicable
Flash point(
℃
)
：
Not
applicable
Upper explosion limit
（
v/v
）
: Not
applicable
Burning temperature(
< br>℃
)
：
Not
applicable
Lower explosion
limit(v/v)
：
Not applicable
Solubility:
Miscible with water and soluble in alkaline
solutions
Main
applications:
Important
inorganic
chemicals,
extensively
used
in
the
field
of
dyestuff, pharmacy, foods, printing and
dyeing, metallurgy and other industries.