MATERIAL SAFETY DATA SHEET
Sodium Bisulfite, Solution
1. PRODUCT AND COMPANY IDENTIFICATION
Product Name: Sodium Bisulfite Solution Formula: NaHSO3 Molecular Weight: 104.06
Chemical Name: Sodium Bisulfite Chemical Family: Bisulfite, sodium salt
Synonyms: Sodium Bisulphite, Aqueous Solution; Sodium Hydrogen Sulfite; Sodium disulfite; Sulfurous acid,
monosodium salt; Sodium acid sulfite
Product Use: For the manufacture of perfume, pharmaceuticals, photochemicals, bleaching agent, and papermaking.
Chemtrade Logistics Chemtrade Logistics
111 Gordon Baker Road 11450 Cherrier Street
Emergency Telephone Number
Suite 301 Montreal East, PQ
North York, ONT H1B 1A6
Chemtrec 1-800-424-9300
M2H 3R1 1-888-840-4720
(416) 496-5856 Canutec (613) 996-6666
1-866-887-8805
2. COMPOSITION/INFORMATION ON INGREDIENTS
Hazardous Ingredients % by Wt. CAS Number
Sodium Bisulfite 35 - 44% 7631-90-5
Non-Hazardous Ingredients
56 鈥?65%
Water 7732-18-5
3. HAZARD INFORMATION
EMERGENCY OVERVIEW:
飦? Danger! Contains material, which causes damage to the following organs: mucous membranes, respiratory
tract, skin, eye, lens or cornea. Incompatible with acids and oxidizers (acidification will liberate sulfur dioxide
gas). Thermal decomposition products are corrosive and/or toxic and include oxides of sulfur.
Sodium Bisulfite is a clear, colorless to light yellow liquid with distinctive odor. Pungent odor of Sulfur Dioxide.
Hazardous Material National Fire Protection
Information System Association (U.S.A.)
(U.S.A.)
Effective Date: January 2005 CHEMTRADE LOGISTICS MSDS
Supercedes: August 2004 Page 1 of 10
MATERIAL SAFETY DATA SHEET
Sodium Bisulfite, Solution
3. HAZARD INFORMATION (continued)
POTENTIAL HEALTH EFFECTS:
ACGIH (TLV)(2003) NIOSH REL (2001) OSHA PEL (1989)
3 3
飦? 5 mg/m (TWA)
3
Sodium Bisulfite 5 mg/m (TWA) 5 mg/m (TWA -10 hrs)
In contact with the skin: Sodium Bisulfite may cause symptoms of skin irritation such as reddening, swelling, rash, scaling
or blistering.
In contact with the eyes: Vapors from this product are irritating to the eyes. This product causes irritation, redness, and
pain. May cause burns if left untreated.
Inhaled: Product is irritating to the nose, throat and respiratory tract.
Ingested: May cause allergic reaction in some asthmatics. Ingestion of large amounts may cause nausea,
gastrointestinal upset and abdominal pain. May cause central nervous system(CNS) depression, nausea and vomiting,
diarrhea, violent colic and death.
Long Term Exposure:
Existing Medical Conditions Possibly Aggravated By Exposure: Breathing of fumes may aggravate acute or chronic
asthma and chronic pulmonary disease such as emphysema and bronchitis. May cause allergic reactions in sulfide
sensitive individuals.
Carcinogenicity Data:
Sodium bisulfite is not classified by NTP (National Toxicology Program), not regulated as carcinogenic by OSHA
(Occupational Safety and Health Administration), and has been evaluated by IARC (International Agency for Research on
Cancer) as a Group 3 (are not classifiable as to their carcinogenicity to humans). ACGIH (American Conference of
Governmental Industrial Hygienists) classifies it as an A4= Not classifiable as a human carcinogen.
4. FIRST AID MEASURES
Precaution: Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed.
Skin contact: Flush skin with running water for a minimum of 20 minutes. Start flushing while removing contaminated
clothing. If irritation persists, repeat flushing. Obtain medical attention IMMEDIATELY. Do not transport victim unless the
recommended flushing period is completed or flushing can be continued during transport.
Effective Date: January 2005 CHEMTRADE LOGISTICS MSDS
Supercedes: August 2004 Page 2 of 10
MATERIAL SAFETY DATA SHEET
Sodium Bisulfite, Solution
4. FIRST AID MEASURES (continued)
For minor skin contact, avoid spreading material on unaffected skin. Discard heavily contaminated clothing and shoes in a
manner which limits further exposure. Otherwise, wash clothing separately before reuse.
Eye contact: Immediately flush eyes with running water for a minimum of 20 minutes. Hold eyelids open during flushing. If
irritation persists, repeat flushing. Obtain medical attention IMMEDIATELY. Do not transport victim until the recommended
flushing period is completed unless flushing can be continued during transport.
Inhalation: Move victim to fresh air. Give artificial respiration ONLY if breathing has stopped. Give Cardiopulmonary
Resuscitation (CPR) if there is no breathing AND no pulse. Obtain medical attention IMMEDIATELY.
Ingestion: DO NOT INDUCE VOMITING. If victim is alert and not convulsing, rinse mouth and give 陆 to 1 glass of water to
dilute material. If spontaneous vomiting occurs, have victim lean forward with head down to avoid breathing in of vomitus,
rinse mouth and administer more water. IMMEDIATELY contact local poison control centre. Vomiting may need to be
induced but should be directed by a physician or a poison control centre. IMMEDIATELY transport victim to an emergency
facility.
5. FIRE FIGHTING MEASURES
Flash Point (method): Not applicable, product is non-flammable
Autoignition Temperature: Not combustible
Flammability Limits in air(%): UEL: Not applicable LEL: Not applicable
Fire Extinguishing Media: For small fires use dry chemical, carbon dioxide or water spray. For large fires, use dry
chemical, carbon dioxide, alcohol-resistant foam or flood fire area with water. Do not get solid stream of water on spilled
material.
Special Fire Fighting Procedures: Oxides of Sulfur may be present during a fire. Use self-contained breathing apparatus
and full protective clothing are recommended. Gas tight suits are required in extreme (>1000 ppm) concentrations of Sulfur
dioxide. Evacuate residents who are downwind of fire. Prevent unauthorized entry to fire area. Dike area to contain runoff
and prevent contamination of water sources. Neutralize runoff with lime, soda ash or other suitable neutralizing agents (see
Deactivating Chemicals, Section 6). Cool containers that are exposed to flame with streams of water until fire is out.
Other Fire or Explosion Hazards: Thermal decomposition products are toxic and include oxides of Sulfur. Sodium sulfide
may be formed after dried solution residues are heated. This is an explosive hazard and strongly alkaline in contact with
water.
Effective Date: January 2005 CHEMTRADE LOGISTICS MSDS
Supercedes: August 2004 Page 3 of 10
MATERIAL SAFETY DATA SHEET
Sodium Bisulfite, Solution
6. ACCIDENTAL RELEASE MEASURES
Steps to be taken in the event of a spill or leak: Remove all ignition sources. Ventilate area. Use appropriate Personal
Protection Equipment. Prevent liquid from entering sewers or waterways. Dike with inert material (sand, earth, etc.). Stop or
reduce leak if safe to do so. Collect into containers for reclamation or disposal only if container is suitable to withstand the
material. Consider insitu neutralization and disposal. Ensure adequate decontamination of tools and equipment following
clean up. Comply with Federal, Provincial/State and local regulations on reporting releases.
Deactivating Chemicals: Alkali materials such as dilute sodium hydroxide, Lime, limestone, sodium carbonate (soda ash),
sodium bicarbonate, dilute aqua ammonia. Sulfur dioxide may be released during neutralization.
Waste Disposal Methods: Dispose of waste material at an approved waste treatment/disposal facility, in accordance with
applicable regulations. Do not dispose of waste with normal garbage or to sewer systems.
Note - Clean-up material may be a RCRA Hazardous Waste on disposal.
- Spills are subject to CERCLA reporting requirements: RQ = 5000 lbs (2270 kg)
7. HANDLING AND STORAGE
Precautions: Wear appropriate Personal Protection Equipment. Keep ignition sources away from Sodium Bisulfite
storage, handling and transportation equipment. Keep containers closed when not in use. Have emergency equipment (for
fires, spills, leaks, etc.) readily available. Ensure all containers are labeled. Do not expose to strong acids as this will
liberate sulfur dioxide gas.
Handling Procedures and Equipment: Rubber lined carbon steel or certain stainless steel materials are suitable for use.
Contact CHEMTRADE LOGISTICS for specific recommendations when handling Sodium Bisulfite.
Storage Temperature: Store above freezing point (Section 9). Ideal storage temperatures are between and 20 and 27
degrees Centigrade.
Storage Requirements: Store in corrosion-proof area away from incompatible substances. Store in tightly closed
container, preferably the supplier container. Store in a cool, well, ventilated location away from heat, sparks and flames.
Storage tanks should be constructed from polyethylene, polypropylene, fiberglass-reinforced plastic (FRP), cross-linked
polyethylene (XLPE), or 316 stainless steel to avoid corrosion problems. Tanks should be vented into an alkaline fume
recovery system or scrubber. Storage tanks should be protected from water ingress, and maintained structurally in a safe
and reliable condition.
Other Precautions: On exposure to air the product will lose some sulfur dioxide and gradually oxidize to sulfate. Both
acidification and heating accelerate the release of sulfur dioxide fumes.
Effective Date: January 2005 CHEMTRADE LOGISTICS MSDS
Supercedes: August 2004 Page 4 of 10
MATERIAL SAFETY DATA SHEET
Sodium Bisulfite, Solution
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Recommendations listed in this section indicate the type of equipment which will provide protection against over exposure to
this product. Conditions of use, adequacy of engineering or other control measures, and actual exposures will dictate the
need for specific protective devices at your workplace.
飦? Engineering Controls: Provide exhaust ventilation or other controls to keep the airborne concentrations of vapors below
their respective occupational exposure limits. Ensure the eyewash stations and safety showers are proximal to the
workstation location.
Respiratory Protection: A NIOSH/MSHA approved air-purifying respirator equipped with acid gas/fume, dust, mist
3
cartridges for concentrations up to 50mg/m or 20 ppm as sulfur dioxide. A powered air-purifying respirator with acid gas
cartridges for up to 50 ppm sulfur dioxide. A full-facepiece air-supplied respirator if concentrations are for up to and higher
than 100 ppm sulfur dioxide.
Skin Protection: Impervious (i.e., neoprene, PVC, rubber) gloves, coveralls, boots and/or other acid resistant protective
clothing.
Eye Protection: Tight-fitting chemical goggles and face shield.
Other Personal Protective Equipment: Where there is a danger of spilling or splashing, acid resistant aprons or suits
should be worn. Trouser legs should be worn outside (not tucked in) rubber boots. Safety showers and eyewash fountains
should be installed in storage and handling areas.
9. PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Liquid
Appearance and Odour: Clear, colourless to light yellow liquid with distinctive odour. Pungent odour of Sulfur dioxide.
Odour Threshold: No data
o o
Boiling Point: 104 C (220 F)
o o
Melting/Freezing Point: Approximately 6 C (43 F)
o o
Vapour Pressure: 32 mmHg at 20 C, 78 mm Hg (10.4 kPA)at 37.7 C
o o
Specific Gravity at 25 C (77 F) 1.33 for 38%
飦? Vapour Density: (Air=1): Highest known value is 0.62 (Air=1) (Water)
Bulk Density: Not applicable (see specific gravity)
Evaporation Rate: Not applicable
Solubility: Miscible in all proportions in water.
pH: 3.8 to 5.2
Effective Date: January 2005 CHEMTRADE LOGISTICS MSDS
Supercedes: August 2004 Page 5 of 10
MATERIAL SAFETY DATA SHEET
Sodium Bisulfite, Solution
10. STABILITY AND REACTIVITY
Stability: Under Normal Conditions: On exposure to air the product will lose some sulfur dioxide and gradually oxidize to
sulfate. Under Fire Conditions: Decomposes to form oxides of sulfur.
Conditions to Avoid: High temperatures, sparks, open flames and all other sources of ignition. Temperatures at or near
boiling point causes evolution of Sulfur dioxide.
Materials to Avoid: Strong oxidizers, may cause strong exothermic reaction. Lewis or mineral acids (acidification will
liberate sulfur dioxide gas).
Hazardous Decomposition or Combustion Products: Thermal decomposition products are toxic and include oxides of
Sulfur.
Hazardous Polymerization: Will not occur
11. TOXICOLOGICAL INFORMATION
Ingredient Name Test Result Route Species
飦? Sodium Bisulfite Solution LD50 2000 mg/kg Oral Rat
Carcinogenicity Data: Sodium bisulfite is not classified by NTP (National Toxicology Program), not regulated as
carcinogenic by OSHA (Occupational Safety and Health Administration), and has been evaluated by IARC (International
Agency for Research on Cancer) as a Group 3 (are not classifiable as to their carcinogenicity to humans). ACGIH
(American Conference of Governmental Industrial Hygienists) classifies it as an A4 = Not classifiable as a human
carcinogen.
Reproductive Effects: Not available
Mutagenicity Data: Evidence of mutagenic activity in bacteria, microorganisms, and DNA.
Teratogenicity Data: Not available
Synergistic Materials: None known
Effective Date: January 2005 CHEMTRADE LOGISTICS MSDS
Supercedes: August 2004 Page 6 of 10
MATERIAL SAFETY DATA SHEET
Sodium Bisulfite, Solution
12. ECOLOGICAL INFORMATION
Ingredient Name Species Period Result
Sodium Bisulfite Solution Mosquito fish. (LC50) 96 hour(s) 240 ppm
: These products are sulfur oxides (SO2, SO3). Some metallic oxides.
Products of
Degradation Products : The products of degradation are toxic.
Toxicity of the
of Biodegradation
13. DISPOSAL CONSIDERATIONS
飩? Responsibility for proper waste disposal is with the owner of the waste. Work with the appropriate regulatory bodies to
ensure compliance with regulations.
飩? Consider the collection of residual Sodium Bisulfite into containers for reclamation or disposal only if the container is
suitable to withstand the material.
飩? Consider insitu neutralization and disposal.
飩? Clean-up material may be a RCRA Hazardous Waste on disposal.
飩? Provincial/State or local regulations or restrictions are complex and may differ from Federal regulations.
飩? The information applies to the material as manufactured; processing, neutralizing, use or contamination may make the
information inappropriate, inaccurate or incomplete.
14. TRANSPORT INFORMATION
U.S. (Under DOT) Canada (Under TC)
Shipping Name: RQ, Bisulfites, aqueous Shipping Name: Bisulfite, aqueous
solutions, n.o.s. solution, n.o.s. (sodium bisulfite)
Hazard Class or Division: 8 Classification(s): 8
Product Identification No. (PIN): UN 2693 Product Identification No. (PIN): UN 2693
Packing Group: III Packing Group: III
Reportable Quantity (RQ) = 5000 lbs (2270kg)
飦? ERG 154
Effective Date: January 2005 CHEMTRADE LOGISTICS MSDS
Supercedes: August 2004 Page 7 of 10
MATERIAL SAFETY DATA SHEET
Sodium Bisulfite, Solution
15. REGULATORY INFORMATION
U.S.A.
SARA Title III HAZARD CATEGORIES AND LISTS
Product Hazard Categories Lists
Acute (Immediate) Health: Yes Extremely Hazardous Substance n/a
Chronic (Delayed) Health: No (40 CFR 355, SARA Title III Section 302)
Fire: No CERCLA Hazardous Substance Yes
Reactivity: No (40 CFR 302.4)
Sudden Release of Pressure: No Toxic Chemical Yes
(40 CFR 372.65, SARA Title III Section 313)
Reportable Quantity (RQ) under U.S. EPA CERCLA: RQ=5000 lb
TSCA Inventory Status: Reported/Included
Right-To-Know: Illinois, Massachusetts, New Jersey, Pennsylvania
飦? California prop. 65: No products were found.
CANADA
Workplace Hazardous Materials Information System (WHMIS)
飦? WHMIS Classification(s): Class D-2B Material causing other toxic effects (TOXIC)
Class E 鈥揅orrosive
CEPA DSL: All components listed.
飦? WHMIS Health Effects Index: Corrosive Material
Sensitizing Material
WHMIS Ingredient Disclosure List: Confirmed A; Meets criteria for disclosure at 1% or greater.
EINECS Number: 231-548-0
Effective Date: January 2005 CHEMTRADE LOGISTICS MSDS
Supercedes: August 2004 Page 8 of 10
MATERIAL SAFETY DATA SHEET
Sodium Bisulfite, Solution
16. OTHER INFORMATION
Additional Information and References
1. 鈥? H MIF 鈥漢o g 鈥? CN O i 鈥滳 n d nC nr fr cu ai a H aha dS ft H mi n O tr , a a a
C E N O tru h C IF d c, a a i e t o O c p tn l e l n aey a l , nai C n d ,
s a e o t , to o
Aug 1999.
2. CHEMLIST, American Chemical Society, Nov 1999.
3. DOSE, Royal Society of Chemistry, Aug 1999
4. HSDB-Hazardous Substances Data Bank ,ho g 鈥? CN O d c, a a i C nr fr cu ai a H a h
tru h C IF i 鈥滳 n d n e t o O c p t n l e l
s a e o t
and Safety, Hamilton, Ontario, Canada, (November, 1999).
5. RTECS- Registry of Toxic Effects of Chemical Substances, On-line search, Canadian Centre for Occupational Health
and Safety RTECS database, Aug 1999.
6. Transportation of Dangerous Goods Act and Regulations, Canadian Centre for Occupational Health and Safety, Aug
1999.
7. Threshold Limit Values for Chemical Substances and Physical Agents, Biological Exposure Indices, American
Conference of Governmental Industrial Hygienists, 1999.
Revision Indicators:
飦刬n the left margin indicates a revision or addition of information since the previous issue.
Effective Date: January 2005 CHEMTRADE LOGISTICS MSDS
Supercedes: August 2004 Page 9 of 10
MATERIAL SAFETY DATA SHEET
Sodium Bisulfite, Solution
16. OTHER INFORMATION (continued)
Legend:
CAS # - Chemical Abstracts Service Registry Number
CERCLA - Comprehensive Environmental Response, Compensation, and Liability Act
CFR - Code of Federal Regulations
DOT - Department of Transportation
EPA - Environmental Protection Agency
LC50 - The concentration of material in air expected to kill 50% of a group of test animals
LD50 - Lethal Dose expected to kill 50% of a group of test animals
LEL - Lower Explosive Limit
MSHA - Mine Safety and Health Administration
NIOSH - National Institute for Occupational Safety and Health
PEL - Permissible Exposure Limit
PVC - Polyvinyl chloride
RCRA - Resource Conservation and Recovery Act
SARA - Superfund Amendments and Reauthorization Act of the U.S. EPA
STEL - Short Term Exposure Limit
TC - Transport Canada
TDG - Transportation of Dangerous Goods Act/Regulations
TLV - Threshold Limit Value
TSCA - Toxic Substances Control Act
TWA - Time-Weighted Average
UEL - Upper Explosive Limit
Prepared by Chemtrade Logistics 1-866-887-8805
The information contained herein has been prepared by CHEMTRADE LOGISTICS Inc. and is offered only as a guide to the
handling of this specific material and has been prepared in good faith by technically knowledgeable personnel. It is not
intended to be all-inclusive and the manner and conditions of use and handling may involve other and additional
considerations. No warranty of any kind is given or implied and CHEMTRADE LOGISTICS Inc. will not be liable for any
damages, losses, injuries or consequential damages that may result from the use or reliance of any information contained
herein.
Effective Date: January 2005 CHEMTRADE LOGISTICS MSDS
Supercedes: August 2004 Page 10 of 10
|