SIGMA CHEMICAL COMPANY -- P5629 POTASSIUM PHOSPHATE TRIBASIC  -- 6810-00F053959
<pre>=====================  Product Identification  =====================

Product ID:P5629 POTASSIUM PHOSPHATE TRIBASIC
MSDS Date:10/01/1995
FSC:6810
NIIN:00F053959
=== Responsible Party ===
Company Name:SIGMA CHEMICAL COMPANY
Address:3050 SPRUCE ST
Box:14508
City:SAINT LOUIS
State:MO
ZIP:63178-5000
Country:US
Info Phone Num:314-771-5765/800-325-3010
Emergency Phone Num:314-771-5765/800-325-3010
CAGE:21076
=== Contractor Identification ===
Company Name:ALDRICH CHEMICAL CO INC
Address:1001 WEST ST PAUL AVE
Box:355
City:MILWAUKEE
State:WI
ZIP:53233
Country:US
Phone:414-273-3850
CAGE:60928
Company Name:FLUKA CHEMICAL CORP
Address:1001 WEST ST PAUL
Box:City:MILWAUKEE
State:WI
ZIP:53233
Country:US
Phone:414-273-3850
CAGE:63181
Company Name:SIGMA CHEMICAL COMPANY
Address:3050 SPRUCE ST
Box:14508
City:ST LOUIS
State:MO
ZIP:63178
Country:US
Phone:314-771-5765
CAGE:21076

=============  Composition/Information on Ingredients  =============

Ingred Name:POTASSIUM PHOSPHATE TRIBASIC, TRIPOTASSIUM PHOSPHATE
CAS:7778-53-2
RTECS #:TC8450000

=====================  Hazards Identification  =====================

Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:HARMFUL IF SWALLOWED, INHALED/ABSORBED
    THROUGH SKIN. MATERIAL IS EXTREMELY DESTRUCTIVE TO TISSUE OF THE
    MUCOUS MEMBRANES & UPPER RESPIRATORY TRACT, EYES & SKIN.
    INHALATION: MAY BE FATAL AS A RESULT OF  SPASM, INFLAMMATION &
    EDEMA OF THE LARYNX & BRONCHI, CHEMICAL PNEUMONITIS & PULMONARY
    EDEMA. CORROSIVE. CAUSES BURNS.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:INFLAMMATION, BURNING SENSATION, COUGHING,
    WHEEZING LARYNGITIS, SHORTNESS OF BREATH, HEADACHE, NAUSEA,
    VOMITING.

=======================  First Aid Measures  =======================

First Aid:EYES/SKIN: IMMEDIATELY FLUSH W/COPIOUS AMOUNTS OF WATER FOR
    15 MINS. INHALATION: REMOVE TO FRESH AIR. GIVE CPR/OXYGEN IF
    NECESSARY. INGESTION: WASH OUT MOUTH W/WATER IF CONSCIOUS. OBTAIN
    MEDICAL ATTEN TION IN ALL CASES.

=====================  Fire Fighting Measures  =====================

Extinguishing Media:DRY CHEMICAL POWDER
Fire Fighting Procedures:WEAR SELF CONTAINED BREATHING APPARATUS &
    PROTECTIVE CLOTHING TO PREVENT CONTACT W/SKIN & EYES.
Unusual Fire/Explosion Hazard:EMITS TOXIC FUMES UNDER FIRE CONDITIONS.

==================  Accidental Release Measures  ==================

Spill Release Procedures:EVACUATE AREA. WEAR SELF CONTAINED BREATHING
    APPARATUS, RUBER BOOTS & HEAVY RUBBER GLOVES. ABSORB ON
    SAND/VERMICULITE & PLACE IN CLOSED CONTAINERS FOR DISPOSAL.
    VENTILATE AREA & WASH SITE AFTER MATERI AL PICKUP IS COMPLETE.

======================	Handling and Storage  ======================

Handling and Storage Precautions:STORE IN A COOL, DRY PLACE. KEEP
    TIGHTLY CLOSED. PRODUCT IS HYGROSCOPIC.
Other Precautions:DON'T GET IN EYES, ON SKIN/ON CLOTHING. AVOID
    PROLONGED/REPEATED EXPOSURE.

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:WEAR APPROPRIATE NIOSH/MSHA-APPROVED RESPIRATOR,
    CHEMICAL RESISTANT GLOVES, SAFETY GOGGLES/OTHER PROTECTIVE CLOTHNG.
Ventilation:USE ONLY IN A CHEMICAL FUME HOOD.
Protective Gloves:REQUIRED
Eye Protection:CHEMICAL SAFETY GOGGLES/FACESHIELD 8"
Other Protective Equipment:PROTECTIVE CLOTHING, SAFETY SHOWER, EYE BATH
Work Hygienic Practices:REMOVE/LAUNDER CONTAMINATED CLOTHING BEFORE
    REUSE. REMOVE/DISCARD CONTAMINATED SHOES. WASH THOROUGHLY AFTER
    HANDLING.
Supplemental Safety and Health

==================  Physical/Chemical Properties  ==================

Spec Gravity:2.564
Appearance and Odor:WHITE POWDER

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:YES
STRONG OXIDIZING AGENTS
Stability Condition to Avoid:MOISTURE
Hazardous Decomposition Products:BY THERMAL DECOMPOSITION: TOXIC FUMES
    OF PHOSPHORUS OXIDES/PHOSPHINE.

====================  Disposal Considerations  ====================

Waste Disposal Methods:SMALL: ADD TO A LARGE STIRRED EXCESS OF WATER.
    ADJUST PH TO NEUTRAL, SEPARATE INSOLUBLE SOLIDS/LIQUIDS & PACKAGE
    FOR DISPOSAL. FLUSH AQUEOUS SOLUTION DOWN THE DRAIN W/PLENTY OF
    WATER. DISPOSE OF IAW/L OCAL, STATE & FEDERAL REGULATIONS.

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