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5.3.5 Sodium Bisulfite
1)
Chemical Product and Company Identification
MSDS Name:
Sodium Sulfite,
Anhydrous
Catalog
Numbers:
S80195,
1MSS44-20,
1MSS4420,
BP355
500,
BP355-500,
BP355500, S430 10, S430 3, S430 500,
S430-10, S430-3, S430-500, S43010, S4303,
S430500, S447 3, S447 500, S447-3,
S447-500, S4473, S447500
Synonyms:
Sulfurous acid,
disodium salt
2) Composition,
Information on Ingredients
CAS#
Chemical Name
Percent
EINECS/ELINCS
7757-83-7
Sodium sulfite, Anhydrous
100.0
231-821-4
Hazard Symbols:
XN
Risk Phrases:
22 36/37/38
3) Hazards Identification
EMERGENCY OVERVIEW
Appearance: white. Air sensitive.
Moisture sensitive.
Warning!
Causes eye and skin
irritation. May
cause digestive tract irritation. Causes
respiratory tract irritation. May
be
harmful if swallowed.
Target
Organs:
Central nervous system.
Potential Health Effects
Eye:
Causes eye irritation.
May cause chemical conjunctivitis.
Skin:
Causes skin
irritation.
Ingestion:
May
cause
gastrointestinal
irritation with
nausea,
vomiting
and diarrhea.
May
be harmful if swallowed.
Inhalation:
Causes
respiratory
tract
irritation.
Can
produce
delayed
pulmonary
edema.
Chronic:
Effects may be delayed.
4) First Aid
Measures
Eyes:
Flush eyes
with plenty of water for at least 15 minutes,
occasionally lifting the
upper and
lower eyelids. Get medical aid.
Skin:
Get
medical
aid.
Flush
skin
with
plenty
of
soap
and
water
for
at
least
15
minutes
while
removing
contaminated
clothing
and
shoes.
Wash
clothing
before
reuse.
Ingestion:
If victim is conscious and alert, give
2-4 cupfuls of milk or water. Never
give anything by mouth to an
unconscious person. Get medical aid immediately.
Inhalation:
Remove
from
exposure
to
fresh
air
immediately.
If
not
breathing,
give
artificial respiration.
If breathing is difficult, give oxygen. Get
medical aid.
Notes to Physician:
Treat symptomatically and supportively.
5) Fire Fighting Measures
General
Information:
As
in
any
fire,
wear
a
self-contained
breathing
apparatus
in
pressure-demand, MSHA/NIOSH (approved
or equivalent), and full
protective
gear.
During
a
fire,
irritating
and
highly
toxic
gases
may
be
generated
by
thermal
decomposition or
combustion. Wear appropriate protective clothing
to prevent contact
with
skin
and
eyes.
Wear
a
self-contained
breathing
apparatus
(SCBA)
to
prevent
contact with thermal decomposition
products.
Extinguishing
Media:
Substance
is
noncombustible;
use
agent
most
appropriate
to
extinguish surrounding fire. Do NOT get
water inside containers. Use water spray, dry
chemical, carbon dioxide, or
appropriate foam.
6) Accidental Release
Measures
General
Information:
Use
proper
personal
protective
equipment
as
indicated
in
Section 8.
Spills/Leaks:
Vacuum
or
sweep
up
material
and
place
into
a
suitable
disposal
container.
Clean
up
spills
immediately,
observing
precautions
in
the
Protective
Equipment
section.
Avoid
generating
dusty
conditions.
Provide
ventilation.
Place
under an inert
atmosphere. Do not get water inside containers.
7) Handling and Storage
Handling:
Wash thoroughly
after handling. Use with adequate ventilation.
Minimize
dust generation and
accumulation. Avoid contact with eyes, skin, and
clothing. Keep
container
tightly
closed.
Avoid
ingestion
and
inhalation.
Handle
under
an
inert
atmosphere. Store
protected from air. Do not allow contact with
water. Wash clothing
before reuse. Keep
from contact with moist air and steam.
Storage:
Store
in
a
tightly
closed
container.
Keep
from
contact
with
oxidizing
materials.
Store
in
a
cool,
dry,
well-
ventilated
area
away
from
incompatible
substances. Keep away from strong
acids. Do not expose to air. Store protected from
moisture. Store under an inert
atmosphere.
8) Exposure Controls,
Personal Protection
Engineering
Controls:
Facilities storing or
utilizing this material should be equipped
with
an
eyewash
facility
and
a
safety
shower.
Use
adequate
ventilation
to
keep
airborne concentrations
low.
Exposure Limits
Chemical Name
ACGIH
NIOSH
OSHA - Final PELs
Sodium
sulfite,
none listed
none listed
none listed
Anhydrous
OSHA
Vacated
PELs:
Sodium
sulfite,
Anhydrous:
No
OSHA
Vacated
PELs
are
listed
for this chemical.
Personal Protective
Equipment
Eyes:
Wear
appropriate protective eyeglasses or chemical
safety goggles as described
by
OSHA's
eye
and
face
protection
regulations
in
29
CFR
1910.133
or
European
Standard EN166.
Skin:
Wear appropriate
protective gloves to prevent skin exposure.
Clothing:
Wear appropriate
protective clothing to prevent skin exposure.
Respirators:
A respiratory
protection program that meets OSHA's 29 CFR
§
1910.134
and
ANSI
Z88.2
requirements
or
European
Standard
EN
149
must
be
followed
whenever
workplace
conditions
warrant
a
respirator's
use.
Follow
the
OSHA
respirator
regulations
found
in
29CFR
1910.134
or
European
Standard
EN
149.
Always
use
a
NIOSH
or
European
Standard
EN
149
approved
respirator
when
necessary.
9) Physical and Chemical Properties
Physical State:
Solid
Appearance:
white
Odor:
odorless
pH:
Not available.
Vapor Pressure:
Not
available.
Vapor Density:
Not available.
Evaporation
Rate:
Not available.
Viscosity:
Not available.
Boiling Point:
Not
available.
Freezing/Melting
Point:
Not available.
Autoignition Temperature:
Not available.
Flash Point:
Not available.
Decomposition
Temperature:
> 500 deg C
NFPA Rating:
(estimated)
Health: 2; Flammability: 0; Reactivity: 0
Explosion Limits, Lower:
Not
available.
Upper:
Not
available.
Solubility:
23
g/100 mL water (20°
C)
Specific Gravity/Density:
2.6330g/cm3
Molecular
Formula:
Na2O3S
Molecular
Weight:
126.04
10) Stability
and Reactivity
Chemical
Stability:
Stable
at
room
temperature
in
closed
containers
under
normal
storage and handling conditions.
Conditions to Avoid:
Incompatible materials, dust
generation, moisture, exposure to
air,
excess heat.
Incompatibilities
with
Other
Materials:
Strong
oxidizing
agents,
acids,
organics,
moisture, air, combustible materials.
Hazardous Decomposition Products:
Oxides of sulfur.
Hazardous
Polymerization: Has not been reported.
11) Toxicological Information
RTECS#:
CAS#
7757-83-7: WE2150000
LD50/LC50:
CAS# 7757-83-7:
Oral, mouse: LD50 = 820 mg/kg;
Carcinogenicity:
CAS#
7757-83-7: Not listed by ACGIH, IARC, NIOSH, NTP,
or OSHA.
Epidemiology:
No
information available.
Teratogenicity:
No information available.
Reproductive Effects:
No
information available.
Neurotoxicity:
No
information available.
Mutagenicity:
No information available.
Other Studies:
No data
available.
12) Ecological Information
Ecotoxicity:
No data
available. No information available.
Environmental:
No
information found.
Physical:
No information found.
Other:
No information available.
13) Disposal Considerations
Chemical waste generators must
determine whether a discarded chemical is
classified
as a hazardous waste. US EPA
guidelines for the classification determination
are listed
in
40
CFR
Parts
261.3.
Additionally,
waste
generators
must
consult
state
and
local
hazardous waste
regulations to ensure complete and accurate
classification.
RCRA P-Series:
None listed.
RCRA U-Series:
None listed.
14) Transport
Information
US DOT
IATA
RID/ADR
IMO
Canada
TDG
Shipping
No
No
Name:
information
information
available
available
Hazard Class:
UN Number:
Packing
Group:
15) Regulatory
Information
US FEDERAL
TSCA
CAS# 7757-83-7 is listed on the TSCA
inventory.
Health & Safety Reporting
List
None of the chemicals are on the
Health & Safety Reporting List.
Chemical Test Rules
None of
the chemicals in this product are under a Chemical
Test Rule.
Section 12b
None
of the chemicals are listed under TSCA Section
12b.
TSCA Significant New Use Rule
None of the chemicals in this material
have a SNUR under TSCA.
SARA
Section 302 (RQ)
None of the
chemicals in this material have an RQ.
Section 302 (TPQ)
None of
the chemicals in this product have a TPQ.
SARA Codes
CAS # 7757-83-7:
acute.
Section 313
No
chemicals are reportable under Section 313.
Clean Air Act:
This
material
does
not
contain
any
hazardous
air
pollutants.
This
material
does
not
contain
any
Class
1
Ozone
depletors.
This
material
does
not
contain
any
Class
2
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