Product ID:POTASSIUM METABISULFITE
MSDS Date:01/21/1986
FSC:6750
NIIN:00-088-5525
MSDS Number: BQXRF

Emergency Phone: 314-895-2000

Info Phone: 314-895-2000

Cage: 37940

Telephone: 314-539-1600

Cage: 37940

POTASSIUM METABISULFITE

CAS: 16731-55-8

RTECS: TT4920000

LD50 LC50 Mixture:NO LD50/LC50 INFORMATION FOUND.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:INGESTION-NOT EXPECTED TO BE A HEALTH
HAZARD BUT LARGE AMOUNTS MAY CAUSE GASTROINTESTINAL DISTURBANCES
DUE TO RELEASE OF SULFUR DIOXIDE. SKIN CONTACT-NO ADVERSE EFFECTS
EXPECTED. EYE CONTACT-NO ADVERS E EFFECTS EFFECTED BUT DUST MAY
CAUSE MECHANICAL IRRITATION.
Explanation of Carcinogenicity:NOT A CARCINOGEN OR SUSPECT CARCINOGEN.
Effects of Overexposure:INHALATION-INHALATION OF DUST MAY CAUSE
RESPIRATORY IRRITATION, COUGHING, AND SNEEZING. INGESTION-NAUSEA,
VOMITING, DIARRHEA MAY RESULT.
Medical Cond Aggravated by Exposure:NO ADVERSE HEALTH EFFECTS EXPECTED.

First Aid:INHALE: REMOVE TO FRESH AIR. GET MEDICAL ATTENTION FOR ANY
BREATHING DIFFICULTY. INGEST: INDUCE VOMITING BY GIVING TWO GLASSES
OF WATER & STICKING FINGER DOWN THROAT. NEVER GIVE ANYTHING BY
MOUTH TO A N UNCONCIOUS PERSON. CALL PHYSICIAN. SKIN: WASH EXPOSED
AREA WITH SOAP & WATER. GET MEDICAL ADVICE IF IRRITATION DEVELOPS.
SKIN: WASH THOROUGHLY WITH WATER. GET MEDICAL ADVICE IF IRRITATION
DEVERLOPS.

Flash Point:NONE
Extinguishing Media:USE ANY MEANS SUITABLE FOR EXINGUISHING SURROUDING
FIRE.
Fire Fighting Procedures:USE PROTECTIVE CLOTHING AND BREATHING
EQUIPMENT APPROPIATE FOR THE SURROUNDING FIRE.
Unusual Fire/Explosion Hazard:NOT CONSIDERED TO BE AN EXPLOSION HAZARD.
NOT CONSIDERED TO BE A FIRE HAZARD, HOWEVER MAY IGNITE IN MILLING,
GRINDING, OTHER CONDITIONS OF HIGH FRICTION.

Spill Release Procedures:SWEEP UP AND CONTAINERIZE FOR RECLAMATION OR
DISPOSAL. AVOID DUST DISPERSAL. TRACE RESIDUE MAY BE FLUSHED TO
SEWER WITH LARGE AMOUNTS OF WATER.

Handling and Storage Precautions:KEEP IN A TIGHTLY CLOSED CONTAINER,
STORED IN A COOL, DRY, VENTILATED AREA. PROTECT AGAINST PHYSICAL
DAMAGE.
Other Precautions:DOT HAZARD CLASS: ORM-B

Respiratory Protection:FOR CONDITIONS OF USE WHERE EXPOSURE TO THE DUST
IS APPARENT, A DUST/MIST RESPIRATOR MAY BE WORN. FOR EMERGENCIES, A
SELF-CONTAINED BREATHING APPARATUS MAY BE NECESSARY.
Ventilation:LOCAL EXHAUST SYSTEM.
Protective Gloves:WEAR PROTECTIVE GLOVES.
Eye Protection:USE CHEMICAL SAFETY GOGGLES.
Other Protective Equipment:WEAR CLEAN BODY-COVERING CLOTHING.
Work Hygienic Practices:MAINTAIN EYE WASH FOUNTAIN AND QUICK-DRENCH
FACILITIES IN WORK AREA.
Supplemental Safety and Health
NONE

HCC:N1
Melt/Freeze Pt:M.P/F.P Text:302F,150C
Spec Gravity:2.3
Solubility in Water:SOLUBLE IN WATER
Appearance and Odor:TRANSPARENT, COLORLESS CRYSTALS, SULFUR DIOXIDE
ODOR.

Stability Indicator/Materials to Avoid:YES
NO INCOMPATIBILITY DATA FOUND.
Stability Condition to Avoid:OXIDIZES IN THE AIR TO SULFATE, MORE
READILY IN THE PRESENCE OF MOISTURE.
Hazardous Decomposition Products:REACTION WITH ACIDS MAY RELEASE SULFUR
DIOXIDE.
Conditions to Avoid Polymerization:THIS SUBSTANCE DOES NOT POLYMERIZE.

Waste Disposal Methods:WHATEVER CANNOT BE SAVED FOR RECLAMATION MAY BE
DISPOSED AS HAZARDOUS WASTE IN AN APPROVED WASTE DISPOSAL FACILITY.
ENSURE COMPLIANCE WITH LOCAL, STATE AND FEDERAL REGULATIONS.

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.