MATERIAL SAFETY DATA SHEET

 

Wausau Chemical Corporation, 2001 N. River Drive, Wausau, WI 54403

                                                                             Last Revision:               February 11, 2004

HMIS Hazard 4 – Extreme                  Health              2 3 – High                       Fire                  0 2 – Moderate               Reactivity         1 1 – Slight                      Other 0 - Least

Emergency       CHEMTREC               800-424-9300

Phones:            Wausau Chemical         715-842-2285

SECTION 1 - MATERIAL IDENTIFICATION

 

 

 

NAME: SODIUM METABISULFITE ANHYDROUS

FORMULA:                Na₂S₂O₅   M.W. = 189.13

SYNONYMS:             Sodium Pyrosulfite; Sodium Bisulfite Anhydrous

MANUFACTURED BY:         BASF Corp

SECTION 2  - HAZARDOUS INGREDIENTS

 

 

 

HAZARDOUS CHEMICAL               CAS #             PERCENT       PEL/TWA        SARA III, SEC 313    

Sodium Metabisulfite                            7681-57-4       >98%               5 mg/m³                        NO

Sulfuric Acid, Monosodium                                           <1.0%              NE                               NO

 

 

 

SECTION 3 – CHEMICAL AND PHYSICAL PROPERTIES

 

 

 

Appearance:           White powder                                Boiling Point (^oF):                                 NA

Odor:                     None                                              Melting Point (^oF):                    Decomposes at 302

pH:                         NA                                                            Specific Gravity (H₂O=1 @ 70^oF):       1 to 1.20 g/cc

Water solubility:            Very soluble                             Vapor Pressure, mm Hg, 20^oC: NA

Vapor Density (air=1)   :           NA                              Volatile Organic (VOC) content:           NA

Evaporation Rate (Butyl Acetate = 1)                NA

 

SECTION 4 – FIRE AND EXPLOSION HAZARDS

 

 

Flash Point (Method):               None                Explosive Limits: Lower            None    Upper              None   

Flammable Limits:                     None                Auto Ignition Temperature:        None

Extinguishing Media:                 Appropriate for the surrounding fire.

 

Special Fire Fighting Procedures and Hazards:  Self contained breathing apparatus.

 

Unusual Fire & Explosion Hazards:       Decomposes to sulfur dioxide gas and hazardous residue.

 

SECTION 5 – REACTIVITY INFORMATION

 

 

Stable:    X  Unstable:               Hazardous Polymerization:   Occurs:                 Does not Occur:           X

 

Conditions to Avoid:                 Excess heat, moisture.

 

Materials to Avoid:                   Acids, Strong oxidizing agents. Nitrates. Nitrites.

 

Decomposition Products:          Sulfur oxides. Sulfur dioxide gas. Incompatible with acids.

Sodium Metabisulfite Anhydrous                                                                                                     Page 2

SECTION 6 – HEALTH HAZARDS – PROTECTIVE MEASURES  – FIRST AID

 

 

Carcinogen:      No

 

EYES:              Can cause eye irritation and/or burns. Use chemical goggles when handling this product. Do not use contact lenses. In the event of contact flush with water for 15 minutes. Get medical attention if symptoms develop.

 

SKIN:              Can cause skin irritation on repeated or prolonged contact. Use neoprene or rubber gloves and apron when handling this product. In the event of contact wash with water for 15 minutes. Remove contaminated clothing. Get medical attention if symptoms develop.

 

INHALATION:           Dust can cause irritation of the respiratory system, chest pains, difficulty in breathing, and pulmonary edema. Excessive amounts can cause death. May cause severe or deadly allergic reactions in some asthmatics or sensitive individuals.

 

INGESTION:              Irritable to the mouth, esophagus and mucous membranes. Large doses may cause violent colic, diarrhea, depression and death. May cause severe or deadly allergic reactions in some asthmatics or sensitive individuals.  Drink large amounts of water. Induce vomiting. Get immediate medical attention.

 

IN ALL CASES:          GET PROMPT MEDICAL ATTENTION IF ADVERSE EFFECTS PERSIST

PRIMARY ROUTES OF ENTRY:      Skin, eyes, inhalation, ingestion.

 

HYGIENE:      Wash hands and face before eating or drinking. Wash soiled clothing before wearing again if contact occurs.

SECTION 7 – PRECAUTIONS FOR SAFE HANDLING, STORAGE AND USE

 

 

 

SPILLS AND LEAKS:            Contain to prevent loss to the environment. Collect excess material. Flush residual material to a sanitary sewer.

 

STORAGE AND HANDLING:           Keep containers tightly closed. Store at ambient temperatures.

 

WASTE DISPOSAL:              Follow recommendations of local, state and federal regulations.

 

EMPTY CONTAINERS:        Send to a recycling center or return to Wausau Chemical Corporation.

SECTION 8 – REGULATORY INFORMATION

 

 

 

DOT SHIPPING DESCRIPTION:                  NONE

 

LABEL REQUIRED                                        NONE

 

The information contained herein is given in good faith, but no warranty, representation, inducement or license of any kind is made, except that the information is accurate to the best of Wausau Chemical Corporation’s knowledge, or is obtained from sources believed by Wausau Chemical Corporation to be reliable and accurate. Wausau Chemical Corporation does not assume any legal responsibility for use or reliance upon the information being furnished. Customers are encouraged to conduct their own tests. Before using any product, read the container label directions as well as the Material Safety Data Sheet.

 

 

 

 

 

 

ND – Not Determined              NA – Not Applicable               NE – Not Established