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SULFUR DIOXIDE
Section 1 - Product and Company Identification
Product Name: Sulfur Dioxide
Chemical Formula: SO 2
CAS Number: 0
Other Designations: SSuullffuurroouuss aacciidd aannhhyyddrriiddee,, ssuullffuurroouuss aannhhyyddrriiddee,, ssuullffuurroouuss ooxxiiddee..
General Use: C
Chheemmiiccaall ffeeeeddssttoocckk,, ffoooodd pprreesseerrvvaattiivvee,, ffuummiiggaattiinngg ppeessttiicciiddee..
Manufacturer: INEOS Calabrian Corporation
5500 Hwy. 366
Port Neches, Texas
Telephone: 409-727-
Fax: 409-727-
Emergency Contact: CHEMTREC 800-424-
Section 2 - Hazards Identification
Emergency Overview
Target Organs: Respiratory system, eyes, skin
GHS Classification: Acute Toxicity, Inhalation (Category 3)
Skin Corrosion/Irritation (Category 1)
Eye Damage/Irritation (Category 1)
GHS Label Elements : Signal Word – Danger
Acute Toxicity Corrosive Irritant Compressed Gas
Hazard Statements : H331 - Toxic if inhaled
H314 - Causes severe skin burns and eye damage
H280 – Contains gas under pressure; may explode if heated
Precautionary P261 - Avoid breathing dust/fumes/gas/mist/vapors/spray.
Statements : P264 - Wash thoroughly after handling.
P271 - Use only outdoors or well-ventilated area.
P280 - Wear protective gloves/protective clothing/eye protection/face protection.
P284 - Wear respiratory protection.
P304 + P340 – If Inhaled: Remove victim to fresh air and keep at rest in a position
comfortable for breathing.
P301 + P330 – If Swallowed: Rinse mouth. Do not induce vomiting.
P303 + P361 + P353 – If on Skin (or hair): Remove/Take off immediately all
contaminated clothing. Rinse skin with water/shower.
P363 – Wash contaminated clothing before reuse.
P305 + P351 + P338 – If in Eyes: Rinse cautiously with water for several minutes.
Remove contact lenses, if present and easy to do. Continue
rinsing.
P403 + P233 – Store in a well-ventilated place. Keep container tightly closed.
SULFUR DIOXIDE
Other Hazards : Sulfur dioxide is a liquid under pressure.
HMIS Classification : Health Hazard 3
Flammability 0
Physical 0
NFPA Rating : Health Hazard 3
Fire 0
Reactivity 0
Section 3 - Composition / Information on Ingredients
Composition CAS Number % wt or vol
Sulfur Dioxide 007446-09-5 100 (wt.)
Ingredient
Sulfur 007704-34-9 50 (wt.)
Oxygen 007782-44-7 50 (wt.)
Section 4 - First Aid Measures
First Aid General Information:
Remove victim to uncontaminated area wearing self contained breathing apparatus. Keep victim warm and
rested. Seek medical attention. Apply artificial respiration if breathing stopped.
First Aid Inhalation:
Remove from exposure to fresh air. Seek medical attention in severe cases or if recovery is not rapid.
First Aid Skin / Eye:
May cause severe chemical burns to skin and eye. Suitable first aid treatment should be immediately available.
Remove contaminated clothing. Drench affected area with water for at least 15 minutes. Immediately flush eyes
thoroughly with water for at least 15 minutes. Seek medical attention.
First Aid Ingestion:
Ingestion is not likely to occur.
Seek appropriate medical attention and provide this SDS to attending doctor
Note to physician: Exposure may aggravate acute or chronic asthma, emphysema and
bronchitis.
Section 5 - Fire-Fighting Measures
Flash Point: Not combustible.
Flash Point Method: Not Applicable.
Burning Rate: Not Applicable.
Auto Ignition Temperature: Not Applicable.
LEL: Not Applicable.
UEL: Not Applicable.
Flammability Classification: Not Flammable.
Extinguishing Media: Use extinguishing agent appropriate for surrounding fire conditions.
Unusual Fire or Explosion Hazards: None indicated.
SULFUR DIOXIDE
exhaust ventilation is preferred because it prevents contaminant
dispersion into the work area by controlling it at the source.
Respiratory Protection: Follow OSHA respirator regulations (29 CFR 1910.134) and, if
necessary, wear a MSHA/NIOSH-approved respirator. Select respirator
based on its suitability to provide adequate worker protection for given
working conditions, level of airborne contamination, and presence of
sufficient oxygen. For emergency or non-routine operations (cleaning
spills, reactor vessels, or storage tanks), wear an SCBA. Warning! Air-
purifying respirators do not protect workers in oxygen-deficient
atmospheres.
Protective Clothing / Equipment: Wear protective gloves, boots, and clothing to prevent prolonged or
repeated skin contact. Wear protective eyeglasses or goggles, per OSHA
eye and face protection regulations (29 CFR 1910.133).
Safety Stations: Make emergency eyewash stations, showers, and washing facilities
available in the work area.
Contaminated Equipment: Separate contaminated work clothes from street clothes. Remove this
material from shoes and clean personal protective equipment.
Comments: Do not eat, drink, or smoke in work areas. Practice good personal
hygiene after using this material, especially before food or beverage
consumption.
Section 9 - Physical and Chemical Properties
PPhhyyssiiccaall SSttaattee::
A
A p
ppp e
eaarraa n
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LLiiququiidd oorr ggaass
CCoolloorrlleessss
W Waatteerr SSoollububiilliittyy::
O
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thh e
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S o
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l u
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illii t
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111 1gg//1 1000 0gg HH
22
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NNAA
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: 0
0..5 5 p
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puunnggeenntt.. B
Boo i
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g P
P o
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:
100 C
C ;
; 1
144 F
F .
.
VVaappoorr PPrreessssuurree:: 22447755 mmmm HHGG @@ 2020 CC.. FFrreeeezziinngg PPooiinntt:: - - 757 5..5 5 CC;; - - 110044 FF..
V
Vaa p
poo r
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D e
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sii t
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( A
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) :
: 2
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@ 2
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C .
. %
% V
V o
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laa t
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illee:: N
N A
A
FFoorrmumulala WWeieighghtt:: 664 4..0 077 EEvvaappoorarattiioonn RRaattee:: RRaappiidd..
DDeennssiittyy:: NNAA pHpH:: AAciciddiicc..
SSppececiifficic GGrraavviittyy (H(H
22
OO== 11 )):: 1. 1 .3 36 6 @@ 2 25 5 CC..
Section 10 - Stability & Reactivity
S
S
t
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a b
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S
Sttaabb l
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unnddeerr n
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I
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b i
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ieess:: Contact with powdered potassium, sodium metal
oxidizing agents produce violent reactions. Reacts
with water and steam to form corrosive sulfurous acid.
Reacts with chlorates to form unstable chlorine dioxide.
CCoonnddiittiiononss ttoo AAvvooiidd:: AAvvooiidd eexxcceessssiivvee heheaatt,, oorr opopeenn ffllaammee..
H
H
a
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s D
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sii t
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s:: M
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s .
Stability: Stable under normal conditions.
Polymerization: Hazardous polymerization will not occur.
SULFUR DIOXIDE
Chemical Incompatibilities: In the presence of water, or acid, Sodium Metabisulfite (and solutions)
may release toxic and hazardous fumes of sulfur oxides,
including sulfur dioxide. Acute poisoning from sulfur dioxide is rare
because the gas is easily detected. It is so irritating that contact cannot
be tolerated. Symptoms include coughing, hoarseness, sneezing,
tearing, and breathing difficulty. However, workers who cannot escape
high accidental exposure may suffer severe pulmonary damage which
can be fatal. Contact with powdered potassium, sodium metals, alkali,
and oxidizing agents produce violent reactions. Reacts with water and
steam to form corrosive sulfurous acid. Reacts with chlorates to
form unstable chlorine dioxide.
Conditions to Avoid: Avoid excessive heat, open flame, and moisture.
Hazardous Decomposition: May release hazardous sulfur dioxide gas.
Section 11 - Toxicological Information
EEyyee EEffffeeccttss ((rarabbbbiit)t):: MMiilldd (( 66 ppppmm/4/ 4 HH//3 322 DD)) AAccuuttee IInnhhaallaattiioonn EEffffeeccttss ((raratt)):: LCLC
5
50 0 =
= 2 255220 0 ppppmm ((11HH))
SSkkiinn EEffffececttss:: NNoott aavvaaiillaabbllee.. AAccuuttee OOrraall EEffffececttss:: NNoott aavvaaiillaabbllee..
CCaarrcciinnooggeenniicciittyy:: IAIARRCC,, NNTTPP,, aanndd OOSSHHAA dodo nonott lliisstt SSuullffuurr DDiiooxxiiddee aass aa ccaarrcciinnooggeenn..
CChhrrononiicc EEffffeeccttss:: PPrroolloonnggeedd oror rreeppeeaatteedd eexxppoossuurree mmaayy ccaauussee iinnffllaammmmatatiioonn ofof ththee lliinniingng ooff tthhee
n
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s e
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drryy tthhrrooaatt aanndd ccoouugghh.. R
Reessppiirraattoorryy ttrraacctt ssyymmppttoommss hhaavvee bbeeeenn oobbsseerrvveedd
s
siimmiillaarr ttoo c
chhaannggeess oobbsseerrvveedd iinn hhuummaann cchhrroonniicc bbrroonncchhiittiiss..
Section 12 - Ecological Information
EEccoottooxixicciittyy:: SSuullffuurr DDiiooxxiiddee iiss aa ppooisisononoouuss gagass ccoommmmoonnllyy uusseedd aass aa ffuummiiggaanntt
ppeessttiicciiddee.. CCoonncceennttrraattiioonnss aabboovvee 11 ppppmm aarree bbeelliieevveedd ttoo bbee iinnjjuurriioouuss ttoo
ppllaanntt ffoolliiaaggee..
EEnnvviriroonnmmeennttaall TTrraannssppoorrtt:: AAiirrboborrnnee ggaass..
E
E n
n v
v i
irr o
onnmm e
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all D
D e
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g r
raa d
d a
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t i
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: R
R a
app i
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d e
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v a
appoo r
r a
att i
i o
onn..
SSooilil AAbbssoorrppttiionon//MMoobbililiittyy:: SSlliighghtt..
Section 13 - Disposal Considerations
Disposal: Waste determinations typically consider Sodium Metabisulfite
contaminated materials to be non-hazardous.
Disposal Regulatory Requirements: Follow applicable Federal, state and local regulations.
Container Cleaning and Disposal: Follow applicable Federal, state and local regulations.
Section 14 - Transport Information
SShhiippppiinngg NNaammee:: SSuullffurur DDiiooxixiddee
SShhiippppiinngg SSyymmbboolsls:: PPooisisonon GGaass
HHaazzaarrdd CCllaassss:: 2 2..3 3
SSuubbssiiddiaiarryy HHaazzarardd:: NNAA
IIDD NNoo..:: UUNN 11007799
P
Paacckkii n
n g
g G
G
r
r o
ouupp :
N
NAA
L
L
a
a b
b e
ell:: P
Poo i
iss o
onn G
G
a
ass
