Material Safety Data Sheet
LA2781
Sodium Hydrosulphite 90-92%
1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Product Id: LA2781
Product Name: Sodium Hydrosulphite 90-92%
Synonyms: Sodium Dithionite.
Chemical Family: None Known
Application: Not Available.
Distributed By:
Univar Canada Ltd.
9800 Van Horne Way
Richmond, BC
V6X 1W5
Prepared By: The Safety, Health and Environment Department of Univar Canada Ltd.
Preparation date of MSDS: 08/04/2004
Telephone number of preparer: 1-866-686-4827
24-Hour Emergency Telephone Number (CHEMTREC): (800) 424-9300
2. COMPOSITION/INFORMATION ON INGREDIENTS
HAZARDOUS COMPONENTS
Ingredients Percentage LD50s and LC50s Route & Species:
(W/W)
Sodium Dithionite 90-92 Not available.
7775-14-6
Sodium Carbonate 3-7 Inhalation LC50 (Mouse) 1200 mg/m鲁
497-19-8 Inhalation LC50 (Rat) 2300 mg/m鲁
Oral LD50 (Rat) 4090 mg/kg
Oral LD50 (Mouse) 6600 mg/kg
Sodium Metabisulfite 3-7 Oral LD50 (Rat) 2 g/kg
7681-57-4
Notes: No additional remark.
3. HAZARDS IDENTIFICATION
Potential Acute Health Effects:
Eye Contact: Causes moderate eye irritation.
Skin Contact: May cause mild skin irritation.
Inhalation: Material is irritating to mucous membrane and upper respiratory tract. Exposure can cause coughing, chest
pains and difficulty in breathing.
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Sodium Hydrosulphite 90-92%
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Ingestion: Causes vomiting, nausea, and diarrhea.
4. FIRST AID MEASURES
Eye Contact: Check for and remove any contact lenses. Immediately flush eyes with running water for at least 15
minutes, keeping eyelids open. Get medical attention immediately.
Skin Contact: Wash contaminated skin with mild soap and water for 15 minutes.
Inhalation: Remove person to fresh air. If not breathing, give artificial respiration. If breathing is difficult, get immediate
medical attention.
Ingestion: Seek immediate medical attention. Do NOT induce vomiting. Never give anything by mouth to an unconscious
or convulsing person. If vomiting occurs spontaneously, keep head below hips to prevent aspiration of liquid into the lungs.
Administer artificial respiration if breathing has stopped. If the heart has stopped, trained personnel should begin
cardiopulmonary resuscitation (CPR) immediately.
Notes to Physician: Treatment based on sound judgment of physician and individual reactions of patient.
5. FIRE FIGHTING MEASURES
Flash Point: None.
Flash Point Method: Not applicable.
Autoignition Temperature: Not applicable.
Flammable Limits in Air (%): Not applicable.
Extinguishing Media: Do not use water, CO2 or foam on material itself. Some of these materials react violently with
water. Use dry chemical, dry sand, soda ash or lime or withdraw from area and let fire burn. Dithionite fires may require
flooding with water in order to eliminate hazardous reaction since the materials generate their own oxygen.
Special Exposure Hazards: Do not get water inside container. Containers exposed to direct flame contact should be
cooled with large quantities of water as needed to prevent weakening of container structure. Withdraw immediately in case
of rising sound from venting safety devices or discolouration of tank. Always stay away from the end of tanks.
Special Protective Equipment: Fire fighters should wear full protective clothing, including self-contained breathing
equipment.
NFPA RATINGS FOR THIS PRODUCT ARE: HEALTH 2, FLAMMABILITY 1, REACTIVITY 2
HMIS RATINGS FOR THIS PRODUCT ARE: HEALTH 2, FLAMMABILITY 1 , REACTIVITY 2
6. ACCIDENTAL RELEASE MEASURES
Personal Precautionary Measures: Wear appropriate protective equipment.
Environmental Precautionary Measures: Prevent from entering sewers, waterways or low areas.
Procedure for Clean Up: Pick up solids and put in an appropriate sealed container for later disposal. Flush area with
water to remove trace residue. Avoid contact with combustible materials.
7. HANDLING AND STORAGE
Handling: For industrial use only. Handle and open containers with care. Avoid contact with eyes, skin and clothing. Do
not ingest. Avoid inhalation of chemical. Empty containers may contain hazardous product residues. Keep the containers
closed when not in use. Launder contaminated clothing prior to reuse. Protect against physical damage. Use appropriate
personnel protective equipment. Wash thoroughly after handling. Avoid dust generation and provide for room ventilation
during handling.
Storage: Keep containers tightly closed. Avoid storage with incompatible materials. Protect against moisture, water and
physical damage.
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Sodium Hydrosulphite 90-92%
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8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Engineering Controls: Localized ventilation should be used to control dust levels.
Respiratory Protection: Dust masks.
Gloves: Rubber gloves.
Skin Protection: Normal work coveralls.
Eyes: Safety glasses (with side shields)
Other Personal Protection Data: Ensure that eyewash stations and safety showers are proximal to the work-station
location.
Ingredients Exposure Limit - ACGIH Exposure Limit - OSHA Immediately Dangerous
to Life or Health - IDLH
Sodium Dithionite Not available. Not available. Not Available.
Sodium Carbonate Not available. Not available. Not Available.
Sodium Metabisulfite 5 mg/m鲁 TLV-TWA 5 mg/m鲁 TWA Not Available.
9. PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Powder. Crystals.
Color: Clear
Odor: Slight sulfur odour.
pH Not Available.
Specific Gravity: 2.3g/cc
Boiling Point: Not Available.
Freezing/Melting Point: Not Available.
Vapor Pressure: Not Available.
Vapor Density: Not Available.
% Volatile by Volume: Not Available.
Evaporation Rate: Not Available.
Solubility: Not Available.
VOCs: Not Available.
Viscosity: Not Available.
Molecular Weight: Not Available.
10. STABILITY AND REACTIVITY
Chemical Stability: Stable
Hazardous Polymerization: Will not occur
Conditions to Avoid: Heat.
Materials to Avoid: Water. Acids. Oxidizers.
Hazardous Decomposition Products: Sulfur dioxide.
Additional Information: No additional remark.
11. TOXICOLOGICAL INFORMATION
Principle Routes of Exposure
Ingestion: Causes vomiting, nausea, and diarrhea.
Skin Contact: May cause mild skin irritation.
Inhalation: Material is irritating to mucous membrane and upper respiratory tract. Exposure can cause coughing, chest
pains and difficulty in breathing.
Eye Contact: Causes moderate eye irritation.
Additional Information:
Acute Test of Product:
Acute Oral LD50: 1500mg/kg (rat)
Acute Dermal LD50: 2000mg/kg (rats)
Acute Inhalation LC50: Not Available.
Carcinogenicity:
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Sodium Hydrosulphite 90-92%
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Ingredients IARC - Carcinogens ACGIH - Carcinogens
Sodium Dithionite Not listed. Not listed.
Sodium Carbonate Not listed. Not listed.
Sodium Metabisulfite Not listed. A4 - Not Classifiable as a Human Carcinogen
Carcinogenicity Comment: No additional information available.
Reproductive Toxicity/ Teratogenicity/ Embryotoxicity/ Mutagenicity: Not Available.
12. ECOLOGICAL INFORMATION
Ecotoxicological Information:
Ingredients Ecotoxicity - Fish Species Acute Crustaceans Toxicity: Ecotoxicity - Freshwater
Data Algae Data
Sodium Dithionite Not Available. Not Available. Not Available.
Sodium Carbonate LC50 (bluegill) 320 mg/L Not Available. Not Available.
Sodium Metabisulfite Not Available. Not Available. Not Available.
Other Information:
Biodegrades easily in water.
13. DISPOSAL CONSIDERATIONS
Disposal of Waste Method: Waste materials must be disposed of in accordance with your municipal, state, provincial
and federal regulations.
Contaminated Packaging: Empty containers should be recycled or disposed of through an approved waste management
facility.
14. TRANSPORT INFORMATION
DOT (U.S.):
DOT Shipping Name: Sodium hydrosulfite
DOT Hazardous Class 4.2
DOT UN Number: UN1384
DOT Packing Group: II
DOT Reportable Quantity (lbs): Not Applicable.
Notes: No additional remark.
Marine Pollutant: No.
ICAO/IATA:
IATA Proper Shipping Name: Sodium hydrosulfite
IATA Hazard Class: 4.2
UN Number: UN1384
Packing Group: II
IATA Label: Spontaneously combustible
IATA Remarks: No additional remark.
IMDG:
IMDG Proper Shipping Name: Sodium hydrosulfite
Hazard Class: 4.2
UN Number: UN1384
Packing Group: II
Marine Pollutant: No.
IMDG Label: Spontaneously combustible
Remarks: No additional remark.
TDG (Canada):
TDG Proper Shipping Name: Sodium Hydrosulfite
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Sodium Hydrosulphite 90-92%
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Hazard Class: 4.2
UN Number: UN1384
Packing Group: II
Note: No additional remark.
Marine Pollutant: No.
15. REGULATORY INFORMATION
U.S. TSCA Inventory Status: All components of this product are either on theToxic Substances Control Act (TSCA)
Inventory List or exempt.
Canadian DSL Inventory Status: All components of this product are either on the Domestic Substances List (DSL) or the
Non-Domestic Substances List (NDSL) or exempt.
U.S. Regulatory Rules
Ingredients CERCLA/SARA - Section SARA (311, 312) Hazard CERCLA/SARA - Section
302: Class: 313:
Sodium Dithionite Not Listed. Not Listed. Not Listed.
Sodium Carbonate Not Listed. Not Listed. Not Listed.
Sodium Metabisulfite Not Listed. Not Listed. Not Listed.
California Proposition 65: Not Listed.
MA Right to Know List: Not Listed.
New Jersey Right-to-Know List: Not Listed.
Pennsylvania Right to Know List: Not Listed.
WHMIS Hazardous Class:
B6 REACTIVE FLAMMABLE MATERIAL
D2B TOXIC MATERIALS
F DANGEROUSLY REACTIVE MATERIAL
LA2781
Sodium Hydrosulphite 90-92%
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16. OTHER INFORMATION
Additional Information: This product has been classified in accordance with the hazard criteria of the
Canadian Controlled Products Regulations (CPR) and the MSDS contains all the
information required by the CPR.
Disclaimer: NOTICE TO READER:
Univar, expressly disclaims all express or implied warranties of merchantability and
fitness for a particular purpose, with respect to the product or information provided
herein, and shall under no circumstances be liable for incidental or consequential
damages.
Do not use ingredient information and/or ingredient percentages in this MSDS as a
product specification. For product specification information refer to a Product
Specification Sheet and/or a Certificate of Analysis. These can be obtained from your
local Univar Sales Office.
All information appearing herein is based upon data obtained from the manufacturer
and/or recognized technical sources. While the information is believed to be accurate,
Univar makes no representations as to its accuracy or sufficiency. Conditions of use
are beyond Univar's control and therefore users are responsible to verify this data
under their own operating conditions to determine whether the product is suitable for
their particular purposes and they assume all risks of their use, handling, and disposal
of the product, or from the publication or use of, or reliance upon, information
contained herein. This information relates only to the product designated herein, and
does not relate to its use in combination with any other material or in any other
process.
***END OF MSDS***
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Sodium Hydrosulphite 90-92%
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