Material Safety Data Sheet
Sulfurous Acid
ACC# 22360
Section 1 - Chemical Product and Company Identification |
MSDS Name: Sulfurous Acid
Catalog Numbers:
AC611600000, AC611600010, A307-1
Synonyms:
Sulfur dioxide, solution.
Company Identification:
Fisher Scientific
1 Reagent Lane
Fair Lawn, NJ 07410
For information, call: 201-796-7100
Emergency Number: 201-796-7100
For CHEMTREC assistance, call: 800-424-9300
For International CHEMTREC assistance, call: 703-527-3887
Section 2 - Composition, Information on Ingredients
|
CAS# |
Chemical Name |
Percent |
EINECS/ELINCS |
7782-99-2 |
Sulfurous acid |
100 | 231-973-1 |
Section 3 - Hazards Identification
|
EMERGENCY OVERVIEW
Appearance: clear, colorless liquid.
Danger! Causes burns by all exposure routes.
Target Organs: Respiratory system,
gastrointestinal system, eyes, skin.
Potential Health Effects
Eye:
Causes eye burns.
Skin:
Causes skin burns. May be harmful if absorbed through the skin.
Ingestion:
Causes gastrointestinal tract burns. May be harmful if swallowed.
Inhalation:
Causes chemical burns to the respiratory tract. May be harmful if
inhaled.
Chronic:
No information found.
Section 4 - First Aid Measures
|
Eyes:
Immediately flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid imme
diately.
Skin:
Get medical aid immediately. Immediately flush skin with plenty of
water for at least 15 minutes while removing contaminated clothing
and shoes.
Ingestion:
Do not induce vomiting. Get medical aid immediately. Call a poison
control center.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh
air immediately. If breathing is difficult, give oxygen. Do not use
mouth-to-mouth resuscitation if victim ingested or inhaled the
substance; induce artificial respiration with the aid of a pocket
mask equipped with a one-way valve or other proper respiratory
medical device.
Notes to Physician:
Treat symptomatically and supportively.
Section 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.
Extinguishing Media:
Use foam, dry chemical, or carbon dioxide.
Flash Point: Not applicable.
Autoignition Temperature: Not applicable.
Explosion Limits, Lower:Not available.
Upper: Not available.
NFPA Rating:
(estimated) Health: 3; Flammability: 1; Instability: 1
Section 6 - Accidental Release Measures
|
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Wear a self contained breathing
apparatus and appropriate personal protection. (See Exposure
Controls, Personal Protection section). Provide ventilation. Do not
let this chemical enter the environment.
Section 7 - Handling and Storage
|
Handling:
Do not get in eyes, on skin, or on clothing. Do not ingest or
inhale. Use only in a chemical fume hood.
Storage:
Store in a cool, dry place. Store in a tightly closed container.
Corrosives area.
Section 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 only under a
chemical fume hood.
Exposure Limits
Chemical Name |
ACGIH |
NIOSH |
OSHA - Final PELs |
Sulfurous acid
|
none listed
|
none listed
|
none listed
|
OSHA Vacated PELs:
Sulfurous acid:
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 respirator use.
Section 9 - Physical and Chemical Properties
|
Physical State: Liquid
Appearance: clear, colorless
Odor: sulfurous odor
pH: Acid
Vapor Pressure: Not available.
Vapor Density: 2.8
Evaporation Rate:Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point:Not available.
Decomposition Temperature:Not available.
Solubility: Soluble.
Specific Gravity/Density:1.03
Molecular Formula:H2SO3
Molecular Weight:82.0722
Section 10 - Stability and Reactivity
|
Chemical Stability:
Oxidizes when exposed to air.
Conditions to Avoid:
Incompatible materials, exposure to air.
Incompatibilities with Other Materials:
Strong bases.
Hazardous Decomposition Products:
Sulfur oxides (SOx), including sulfur oxide and sulfur dioxide.
Hazardous Polymerization: Will not occur.
Section 11 - Toxicological Information
|
RTECS#:
CAS# 7782-99-2:
WT2775000
LD50/LC50:
Not available.
The lowest published human toxic dose is 500 ęg/kg. This dose caused
diarrhea, nausea, and vomiting.
Carcinogenicity:
CAS# 7782-99-2:
Not listed by ACGIH, IARC, NTP, or CA Prop 65.
Epidemiology:
No information found
Teratogenicity:
No information found
Reproductive Effects:
No information found
Mutagenicity:
No information found
Neurotoxicity:
No information found
Other Studies:
Section 12 - Ecological Information
|
Ecotoxicity:
No data available.
No information available.
Environmental:
No information available.
Physical:
No information available.
Other:
Do not empty into drains.
Section 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.
Section 14 - Transport Information
|
|
US DOT |
Canada TDG |
Shipping Name: |
SULFUROUS ACID |
SULFUROUS ACID |
Hazard Class: |
8 |
8 |
UN Number: |
UN1833 |
UN1833 |
Packing Group: |
II |
II |
Section 15 - Regulatory Information
|
US FEDERAL
TSCA
CAS# 7782-99-2 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.
CERCLA Hazardous Substances and corresponding RQs
None of the chemicals in this material have an RQ.
SARA Section 302 Extremely Hazardous Substances
None of the chemicals in this product have a TPQ.
SARA Codes
CAS # 7782-99-2: immediate.
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 Ozone depletors.
Clean Water Act:
None of the chemicals in this product
are listed as Hazardous Substances under the CWA.
None of the chemicals in this
product are listed as Priority Pollutants under the CWA.
None of the chemicals in this
product are listed as Toxic Pollutants under the CWA.
OSHA:
None of the chemicals in this product
are considered highly hazardous by OSHA.
STATE
CAS# 7782-99-2 can be found on the
following state right to know lists: New Jersey.
California Prop 65
California No Significant Risk Level:
None of the chemicals in this product are listed.
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols:
C
Risk Phrases:
R 34 Causes burns.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately with plenty of
water and seek medical advice.
WGK (Water Danger/Protection)
CAS# 7782-99-2: 1
Canada - DSL/NDSL
CAS# 7782-99-2 is listed on Canada's DSL List.
Canada - WHMIS
This product has a WHMIS classification of E.
This product has been classified in accordance with the hazard
criteria of the Controlled Products Regulations and the MSDS
contains all of the information required by those regulations.
Canadian Ingredient Disclosure List
CAS# 7782-99-2 is listed on the Canadian Ingredient Disclosure List.
Section 16 - Additional Information
|
MSDS Creation Date: 12/12/1997
Revision #4 Date: 10/01/2007
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no event shall Fisher be liable
for any claims, losses, or damages of any third party or for lost profits
or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if Fisher has been advised of
the possibility of such damages.