Product ID:SODIUM METABISULFITE
MSDS Date:03/24/1993
FSC:6810
NIIN:00-300-0384
MSDS Number: BHBXJ

Emergency Phone: 201-796-7100

Info Phone: 201-796-7100 OR 201-796-7523

Cage: 1B464

Telephone: 201-796-7100

Cage: 1B464

SODIUM METABISULFITE

CAS: 7681-57-4

RTECS: UX8225000

Fraction By Weight: 100%

OSHA PEL 5 MG/M3

ACGIH TLV: 5 MG/M3; 9293

LD50 LC50 Mixture:SODIUM METABISULFITE: 5 MG/M3 OSHA TWA
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE: INHALATION-INHALATION OF DUST
MAY CAUSE MUCOUS MEMBRANE IRRITATION. SKIN-CONTACT MAY CAUSE
IRRITATION. EYE-CONTACT MAY CAUSE IRRITATION. CHRONIC:
INHALATION/SKIN-REPEATED EXPOSURE MAY RESULT IN SENSITIZATION.
INGESTION-REPEATED INGESTION OF FOODS CONTAINING SULFITES MAY
RESULT IN SENSITIZATION.
Explanation of Carcinogenicity:PER MSDS DATA.
Effects of Overexposure:INHALATION-FLUSHING, SEVERE WHEEZING, SWELLING
OF THE THROAT & GENERALIZED ITCHING. EYE-MAY CAUSE CONJUNCTIVITIS.
INGESTION-MAY CAUSE GENERALIZED ITCHING, LARYNGEAL EDEMA,
HYPOTENSION, CYANOSIS, RAPI D PULSE, COLD, CLAMMY SKIN,
ANAPHYLAXIS, RESPIRATORY ARREST AND UNCONSCIOUSNESS.
Medical Cond Aggravated by Exposure:SULFITES MAY CAUSE SENSITIZATION
REACTIONS IN PREVIOUSLY EXPOSED INDIVIDUALS, ESPECIALLY ASTHMATICS.

First Aid:INHALATION-REMOVE FROM EXPOSURE AREA TO FRESH AIR
IMMEDIATELY. IF BREATHING HAS STOPPED, PERFORM CPR. KEEP WARM & AT
REST. GET MEDICAL HELP. SKIN AND EYE-FLUSH WITH LARGE AMOUNTS OF
WATER OR SALINE FO R EYES, FOR ABOUT 15-20 MINUTES. GET MEDICAL
HELP. INGESTION- DO NOT USE GASTRIC LAVAGE OR EMESIS. DILUTE ACID
BY DRINKING LARGE AMOUNTS OF WATER OR MILK. SEEK MEDICAL ATTENTION
IMMEDIATELY.

Flash Point:NONE
Extinguishing Media:DRY CHEMICAL, CARBON DIOXIDE, WATER SPRAY OR
REGULAR FOAM. FOR LARGER FIRES, USE WATER SPRAY, FOG OR REGULAR
FOAM.
Fire Fighting Procedures:MOVE CONTAINER FROM FIRE AREA WITHOUT RISK. DO
NOT SCATTER SPILLED MATERIAL WITH HIGH-PRESSURE WATER STREAMS. DIKE
FIRE-CONTROL WATER FOR LATER DISPOSAL.
Unusual Fire/Explosion Hazard:NEGLIGIBLE FIRE HAZARD WHEN EXPOSED TO
HEAT OR FLAME. USE AGENTS SUITABLE FOR TYPE OF SURROUNDING FIRE,
AVOID BREATHING HAZARDOUS VAPORS, KEEP UPWIND.

Spill Release Procedures:DO NOT TOUDH SPILLED MATERIAL. STOP LEAK IF
CAN WITHOUT RISK FOR SMALL SPILL TAKE UP WITH SAND OR OTHER
ABSORBENT MATERIAL AND PLACE INTO CONTAINER FOR LATER DISPOSAL. FOR
SMALL DRY SPILLS, WITH CLEAN SHOVEL PLACE MATERIAL INTO DRY
CONTAINER & COVER.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:STORE AWAY FROM INCOMPATIBLE
SUBSTANCES.
Other Precautions:CONDITIONS TO AVOID: MAY BURN BUT DOES NOT IGNITE
READILY, FLAMMABLE, POISONOUS GASES MAY ACCUMULATE IN TANKS AND
HOPPER CARS, MAY IGNITE COMBUSTIBLES (WOOD, PAPER, OIL, ETC.).

Respiratory Protection:USE ANY DUST & MIST RESPIRATOR, ANY
AIR-PURIFYING RESPIRATOR WITH A HIGH EFFICIENCY PARTICULATE FILTER,
ANY POWERED AIR-PURIFYING RESPIRATOR WITH A DUST & MIST FILTER, ANY
SELF-CONTAINED BREATHING APP ARATUS, ETC.
Ventilation:PROVIDE LOCAL EXHAUST VENTILATION SYSTEM TO MEET PUBLISHED
EXPOSURE LIMITS.
Protective Gloves:APPROPIATE PROTECTIVE GLOVES.
Eye Protection:SPLASH PROOF OR DUST RESISTANT GOGGLES
Other Protective Equipment:EMPLOYEE MUST WEAR APPROPIATE PROTECTIVE
(IMPERVIOUS) CLOTHING AND EQUIPMENT TO PREVENT REPEATED CONTACT
WITH SUBSTANCE.
Work Hygienic Practices:EMPLOYER SHOULD PROVIDE AN EYE WASH FOUNTAIN
WITHIN THE IMMEDIATE WORK AREA FOR EMERGENCY USE.
Supplemental Safety and Health
DOT CLASSIFICATION: ORM-B.

HCC:T4
Melt/Freeze Pt:M.P/F.P Text:>302F,>150C
Spec Gravity:1.48
pH:ACIDIC
Appearance and Odor:WHITE PRISM OR WHITE TO YELLOWISH CRYSTALLINE
POWDER WITH A SLIGHT SULFUR ODOR.

Stability Indicator/Materials to Avoid:YES
SODIUM NITRITE; VIGOROUS EXOTHERMIC REACTION.
Stability Condition to Avoid:STABLE UNDER NORMAL TEMPERATURES AND
PRESSURES.
Hazardous Decomposition Products:THERMAL DECOMPOSITION MAY RELEASE
TOXIC OXIDES OF SULFUR AND SODIUM.

Waste Disposal Methods:OBSERVE ALL FEDERAL, STATE AND LOCAL REGULATIONS
WHEN STORING OR DISPOSING OF THIS SUBSTANCE.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.