MATERIAL SAFETY DATA SHEET

 

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

                                                                             Last Revision:               February 17, 2005

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

Emergency       CHEMTREC               800-424-9300

Phones:            Wausau Chemical         715-842-2285

SECTION 1 - MATERIAL IDENTIFICATION

 

 

 

NAME:                        SODIUM NITRITE

FORMULA:                NaNO₂;  M.W. = 69.0

SYNONYMS:             Nitrous Acid, Sodium Salt

SECTION 2  - HAZARDOUS INGREDIENTS

 

 

 

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

Sodium Nitrite                                      7632-00-0          100%               NE                            NO

 

 

SECTION 3 – CHEMICAL AND PHYSICAL PROPERTIES

 

 

 

Appearance:           White-off white granular solid          Boiling Point (^oF):                                 NA

Odor:                     No odor                                         Melting Point (^oF):                                519.8 ^oF

pH:                         ND                                                            Specific Gravity (H₂O=1 @ 70^oF):       2.168

Water solubility:            Very                                         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):               NA                  Explosive Limits: Lower            NA      Upper              NA     

Flammable Limits:                     NA                  Auto Ignition Temperature:        NA

Extinguishing Media:                 Water spray, dry chemical, carbon dioxide or alcohol resistant foam.

 

Special Fire Fighting Procedures and Hazards:  Wear chemical protective clothing and positive pressure self-contained breathing apparatus. Approach upwind to avoid toxic vapors.

 

Unusual Fire & Explosion Hazards:                   May form toxic nitrogen compounds.

 

SECTION 5 – REACTIVITY INFORMATION

 

 

Stable:  Yes                              Hazardous Polymerization:                    Does not occur

Conditions to Avoid:                 Avoid elevated temperatures. Solutions are oxidized by air.

 

Materials to Avoid:                   Contact with amines, ammonium salts, combustible materials, cyanides, excessive heat, reducing agents, strong mineral acids..

 

Decomposition Products:          Nitrogen oxides and possible other nitrogen compounds

 

Sodium Nitrite                                                                                                                                    Page 2

SECTION 6 – HEALTH HAZARDS – PROTECTIVE MEASURES  – FIRST AID

 

 

Carcinogen:      No

 

EYES:              Mild eye irritant. Use chemical goggles when handling this product. In the event of contact flush with water for 15 minutes, holding eyelids apart. Do not wear contact lenses. 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 thoroughly with soap and water. Remove and wash contaminated clothing before reuse. Get medical attention if symptoms develop.

 

INHALATION:           Dust can cause irritation of mucous membranes. Larger amounts of inhalation may cause effects to the central nervous system, and cause visual and mental disturbances. Remove to fresh air. If not breathing, perform artificial respiration. Get medical attention immediately.

 

INGESTION:              Large amounts may cause methemoglobin formation, headache, nausea, vomiting abdominal distsress. Repeated ingestion in large amounts, may cause cyanosis, convulsions, paralysis or coma. Drink two glasses of water. Then induce vomiting. Keep head below hips to prevent aspiration to lungs. Get immediate medical attention.

 

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

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

 

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:            Eliminate all ignition sources. Contain to prevent loss to the environment. Collect excess material. Do not flush to sewers or waterways.

STORAGE AND HANDLING:           Strong oxidizer. Store in well ventilated area, away from ignition sources and direct sunlight. Keep in tightly closed container. Avoid contact with combustible materials, wood, and organic materials.

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

EMPTY CONTAINERS:        Send to a recycling center.

SECTION 8 – REGULATORY INFORMATION

 

 

 

DOT SHIPPING DESCRIPTION:                  Sodium Nitrite, 5.1, UN1500, PG III

 

LABEL REQUIRED:                                       Oxidizer

 

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