Product ID:POTASSIUM METABISULFITE, P2522
MSDS Date:07/01/1999
FSC:6810
NIIN:00N092697
Status Code:A
MSDS Number: CJTPH

Emergency Phone: 314-771-5765

Info Phone: 314-771-5765

Cage: 21076

Telephone: 314-771-5765

Cage: 21076

POTASSIUM METABISULFITE

CAS: 16731-55-8

RTECS: TT4920000

OSHA PEL N/K

ACGIH TLV: N/K

Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE: HARMFUL IF SWALLOWED, INHALED,
OR ABSORBED THROUGH SKIN. CAUSES SEVERE IRRITATION. HIGH
CONCENTRATIONS ARE EXTREMELY DESTRUCTIVE TO TISSUES OF THE MUCOUS
MEMBRANES AND UPPER RESPIRATORY TRACT, EYES AND SKIN. SYMPTOMS OF
EXPOSURE MAY INCLUDE BURNING SENSATION, COUGHING, WHEEZING,
LARYNGITIS, SHORTNESS OF BREATH, HEADACHE, NAUSEA AND VOMITING. MAY
CAUSE ALLERGIC RESPIRATORY AND SKIN REACTIONS . EXPOSURE CAN CAUSE
COUGHING, CHEST PAIN, DIFFICULTY IN BREATHING, STOMACH PAINS,
VOMITING, DIARRHEA. WARNING: CERTAIN INDIVIDUALS WITH PREEXISTING
RESPIRATORY CONDITIONS SUCH AS ASTHMA MAY EXPERIENC E (EFFECTS OF
OVEREXPOSURE)
Effects of Overexposure:HEALTH HAZARDS: HYPERSENSITIVITY TO SULFITES
AND SULFUR DIOXIDE. THE SYMPTOMS INCLUDE BRONCHOCONSTRICTION,
BRONCHOSPASM, GASTROINTESTINAL DISTURBANCES, FLUSHING, HYPOTENSION,
TINGLING SENSATION, URTIC ARIA/ANGIOEDEMA AND SHOCK.
Medical Cond Aggravated by Exposure:PREEXISTING RESPIRATORY CONDITIONS.

First Aid:EYES: IMMEDIATELY FLUSH WITH COPIOUS AMOUNTS OF WATER FOR AT
LEAST 15 MINUTES. SKIN: IMMEDIATELY WASH WITH SOAP AND COPIOUS
AMOUNTS OF WATER. INHALATION: REMOVE TO FRESH AIR. IF NOT
BREATHING, GIVE AR TIFICIAL RESPIRATION. IF BREATHING IS DIFFICULT,
GIVE OXYGEN. INGESTION: WASH OUT MOUTH WITH WATER PROVIDED PERSON
IS CONSCIOUS. CALL A PHYSICIAN. WASH CONTAMINATED CLOTHING BEFORE
REUSE.

Extinguishing Media:DRY CHEMICAL POWDER.
Fire Fighting Procedures:WEAR NIOSH APPROVED SCBA AND FULL PROTECTIVE
EQUIPMENT .
Unusual Fire/Explosion Hazard:EMITS TOXIC FUMES UNDER FIRE CONDITIONS.

Spill Release Procedures:EVACUATE AREA. WEAR NIOSH APPROVED
SELF-CONTAINED BREATHING APPARATUS, RUBBER BOOTS AND HEAVY RUBBER
GLOVES. SWEEP UP, PLACE IN A BAG AND HOLD FOR WASTE DISPOSAL. AVOID
RAISING DUST. VENTILATE AREA AN D WASH SPILL SITE AFTER MATERIAL
PICKUP IS COMPLETE.

Handling and Storage Precautions:DO NOT BREATHE DUST. DO NOT GET IN
EYES, ON SKIN, ON CLOTHING. AVOID PROLONGED OR REPEATED EXPOSURE.
SEVERE IRRITANT. SENSITIZER. HARMFUL SOLID. KEEP TIGHTLY CLOSED.
AVOID CONTACT WITH ACID. STORE IN A COOL DRY PLACE.

Respiratory Protection:WEAR APPROPRIATE NIOSH APPROVED RESPIRATOR.
Ventilation:USE ONLY IN A CHEMICAL FUME HOOD.
Protective Gloves:CHEMICAL-RESISTANT GLOVES.
Eye Protection:ANSI APPROVED CHEMICAL WORKERS GOGGLES .
Other Protective Equipment:EYEWASH AND DELUGE SHOWER MEETING ANSI
DESIGN CRITERIA . WEAR OTHER PROTECTIVE CLOTHING.
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health

Appearance and Odor:WHITE POWDER.

Stability Indicator/Materials to Avoid:YES
STRONG OXIDIZING AGENTS, AIR-SENSITIVE, MOISTURE-SENSITIVE.
Stability Condition to Avoid:AVOID CONTACT WITH ACID. FORMATION OF
SULFUR DIOXIDE BY ACIDS.
Hazardous Decomposition Products:TOXIC FUMES OF SULFUR OXIDES.

Waste Disposal Methods:FOR SML QTYS: CAUTIOUSLY ADD TO LGE STIRRED
EXCESS OF WATER. ADJUST PH TO NEUTRAL, SEPARATE ANY INSOL
SOLIDS/LIQS & PACKAGE THEN FOR HAZ WASTE DISP. FLUSH AQUEOUS SOLN
DOWN DRAIN W/PLENTY OF WATER. HY DROLYSIS & NEUTRALIZATION
REACTIONS MAY GENERATE HEAT & FUMES WHICH CAN BE CONTROLLED BY RATE
OF ADD ITION. OBSERVE ALL FED, STATE & LOC ENVIRON REGS.

Toxicological Information:RTECS NUMBER: TT4920000, POTASSIUM
PYROSULFITE. ONLY SELECTED REGISTRY OF TOXIC EFFECTS OF CHEMICAL
SUBSTANCES (RTECS) DATA IS PRESENTED HERE. SEE ACTUAL ENTRY IN
RTECS FOR COMPLETE INFORMATION.

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.

Ecological:DATA NOT YET AVAILABLE.

Transport Information:CONTACT SIGMA CHEMICAL COMPANY FOR TRANSPORTATION
INFORMATION.

Federal Regulatory Information:EUROPEAN INFO: HARMFUL. R 20/21/22:
HARMFUL BY INHAL, IN CONT W/SKIN & IF SWALLOWED. R 42/43: MAY CAUSE
SENSIT BY INHAL & SKIN CONT. R 31: CONT W/ACIDS LIBERATES TOX GAS.
S 26: IN CASE OF CONT W/EYES, RINSE IMMED W/PLENTY OF WATER & SEEK
MED ADVICE. S 36: WEAR SUITABLE PROT CLTHG. REVIEWS, STDS, & REGS:
OEL=MAK. IARC CANCER REVIEW: HUMAN INADEQ EVIDENCE; IMEMDT 54, 131,
1992. IARC CANCER REVIEW: A NIMAL INADEQ EVIDENCE; IMEMDT 54, 131,
1992. IARC CANCER REVIEW: GROUP 3; IMEMDT 54, 131, 1992. NOHS
1974: HZD 82177; NIS 17; TNF 1935; NOS 13; TNE 5348. (OTHER INFO)