HACH COMPANY -- 323 SODIUM THIOSULFATE SOLUTION 0.10N  -- 6810-00F024295
<pre>=====================  Product Identification  =====================

Product ID:323 SODIUM THIOSULFATE SOLUTION 0.10N
MSDS Date:11/20/1990
FSC:6810
NIIN:00F024295
=== Responsible Party ===
Company Name:HACH COMPANY
Box:907
City:AMES
State:IA
ZIP:50010
Country:US
Info Phone Num:(800) 227-4224
Emergency Phone Num:(800) 227-4224
CAGE:4T252
=== Contractor Identification ===
Company Name:HACH COMPANY
Address:100 DAYTON RD.
Box:907
City:AMES
State:IA
ZIP:50010
Country:US
Phone:800-227-4224
CAGE:4T252

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

Ingred Name:SODIUM THIOSULFATE
CAS:10102-17-7
RTECS #:WE6660000
Fraction by Wt: >5%

Ingred Name:OTHER COMPONENTS.(PER MSDS NON-HAZARDOUS)
Fraction by Wt: <1%

Ingred Name:WATER
CAS:7732-18-5
RTECS #:ZC0110000
Fraction by Wt: BALANCE

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

Routes of Entry: Inhalation:NO	Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:PRACTICALLY NON-TOXIC
Explanation of Carcinogenicity:NONE
Effects of Overexposure:PRACTICALLY NON-TOXIC

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

First Aid:EYES/SKIN: FLUSH W/PLENTY OF WATER. INGESTION: GIVE LARGE
    QUANTITIES OF WATER. INHALATION: REMOVE TO FRESH AIR. OBTAIN
    MEDICAL ATTENTION IN ALL CASES.

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

Spill Release Procedures:DILUTE W/WATER. POUR DOWN THE DRAIN W/EXCESS
    WATER.

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

Handling and Storage Precautions:STORE IN A COOL, DRY PLACE & PROTECT
    FROM SUNLIGHT.
Other Precautions:AVOID CONTACT W/EYES & SKIN.

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

Eye Protection:SAFETY GLASSES W/TOP & SIDE SHIELDS
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health

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

Boiling Pt:B.P. Text:>212F
Spec Gravity:0.996
pH:7.9%
Solubility in Water:MISCIBLE
Appearance and Odor:CLEAR & COLORLESS, LIQUID, ODORLESS

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

Stability Indicator/Materials to Avoid:YES
Stability Condition to Avoid:HEAT, LIGHT

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

Waste Disposal Methods:DISPOSE OF IN ACCORDANCE W/FEDERAL, STATE &
    LOCAL REGULATIONS.

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