ALDON CORP. -- SODIUM THIOSULFATE, PENTAHYDRATE  -- -
<pre>=====================  Product Identification  =====================

Product ID:SODIUM THIOSULFATE, PENTAHYDRATE
MSDS Date:03/22/1996
FSC:NIIN:Submitter:D DG
Status Code:A
=== Responsible Party ===
Company Name:ALDON CORP.
Address:1533 W HENRIETTA RD
City:AVON
State:NY
ZIP:14414
Country:US
Info Phone Num:716-226-6177
Emergency Phone Num:716-226-6177
Resp. Party Other MSDS Num.:SS 881
Preparer's Name:MICHAEL RASZEJA
Chemtrec Ind/Phone:(800)424-9300
CAGE:6V042
=== Contractor Identification ===
Company Name:AL-DON CHEMICALS INC
Address:1533 W HENRIETTA RD
Box:City:AVON
State:NY
ZIP:14414-9508
Country:US
Phone:716-226-6177
CAGE:6V042
Company Name:CAROLINA BIOLOGICAL SUPPLY CO
Address:2700 YORK RD
Box:City:BURLINGTON
State:NC
ZIP:27215-3387
Country:US
Phone:800-227-1150/910-584-0381
Contract Num:MDA414-00-P-0004
CAGE:59896

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

Ingred Name:SODIUM THIOSULFATE PENTAHYDRATE
CAS:10102-17-7
RTECS #:WE6660000
= Wt:100.

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

LD50 LC50 Mixture:ORAL LD50(RAT): UNKNOWN.
Health Hazards Acute and Chronic:INHALATION: OF PRODUCT DUST OR MIST,
    MAY IRRITATE RESPIRATORY TRACT. INGESTION: MAY CAUSE IRRITATION OF
    THE RESPIRATORY TRACT & PURGING. SKIN: DUST OR MIST MAY CAUSE
    IRRITATION FROM PROLONGED CONTACT.	AQUEOUS SOLUTIONS MAY CAUSE
    IRRITATION FROM REPEATED OR  PROLONGED CONTACT. EYES: DUST OR MIST
    MAY IRRITATE OR BURN EYES. SOLUTION MAY IRRITATE OR BURN EYES.
Effects of Overexposure:IINHALATION: OF PRODUCT DUST OR MIST, MAY
    IRRITATE RESPIRATORY TRACT. INGESTION: MAY CAUSE IRRITATION OF THE
    RESPIRATORY TRACT & PURGING. SKIN: DUST OR MIST MAY CAUSE
    IRRITATION FROM PROLONGED CONTACT . AQUEOUS SOLUTIONS MAY CAUSE
    IRRITATION FROM REPEATED OR  PROLONGED CONTACT. EYES: DUST OR MIST
    MAY IRRITATE OR BURN EYES. SOLUTION MAY IRRITATE OR BURN EYES.

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

First Aid:EYES: FLUSH THOROUGHLY WITH WATER FOR 15 MINUTES, LIFTING
    UPPER & LOWER EYELIDS OCCASIONALLY.I F IRRITATION PERSISTS GET
    MEDICAL ATTENTION. SKIN: FLUSH THOROUGHLY WITH WATER, THEN WASH
    WITH MILD SOAP  AND WATER. INHALATION: REMOVE TO FRESH AIR. F
    ILLNESS OR DISCOMFORT DEVELOPS, GET MEDICAL ATTENTION. INGESTION:
    IF SWALLOWED, IF CONSCIOUS, PROMPLTLY GIVE 2-4 GLASSES OF WATER AND
    INDUCE VOMITING. CAL L PHYSICIAN. NEVER GIVE ANYTHING BY MOUTH TO
    AN UNCONSCIOUS PERSON.

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

Flash Point:NON-FLAMMABLE
Extinguishing Media:USE ANY MEDIA SUITABLE FOR EXTINGUISHING SUPPORTING
    FIRE.
Fire Fighting Procedures:IN FIRE CONDITIONS, WEAR A NIOSH/MSHA APPROVED
    SELF-CONTAINED BREATHING APPARATUS. USE WATER SPRAY TO KEEP
    CONTAINERS COOL, AND TO KNOCK DOWN FUMES.
Unusual Fire/Explosion Hazard:HIGH TEMPERATURES MAY CAUSE EVOLUTION OF
    TOXIC SULFUR DIOXIDE (SO2) OR HYDROGEN SULFIDE GAS (H2S).

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

Spill Release Procedures:AVOID CREATING DUST. SWEEP UP AND PLACE IN A
    SUITABLE CONTAINER FOR PROPER DISPOSAL.

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

Handling and Storage Precautions:STORE IN A COOL, DRY PLACE AWAY FROM
    ACIDS OR OXIDIZERS. CONTACT WITH ACIDS RELEASES IRRITATING SULFUR
    DIOXIDE GAS. WASH THOROUGHLY AFTER HANDLING. KEEP CONTAINER TIGHTLY
    CLOSED WHEN NOT IN USE.
Other Precautions:AVOID CONTACT WITH EYES, SKIN & CLOTHING. AVOID
    BREATHING DUST/MIST. USE WITH ADEQUATE VENTILATION. REMOVE & WASH
    CONTAMINATED CLOTHING. READ LABEL ON CONTAINER BEFORE USING. DO NOT
    WEAR CONTACT LENSE S WHEN WORKING WITH CHEMICAL. FOR LABORATORY USE
    ONLY. NOT FOR DRUG, FOOD, HOUSEHOLD USE. KEEP OUT O F REACH OF
    CHILDREN.

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

Respiratory Protection:NONE SHOULD BE NEEDED IN NORMAL LABORATORY USE.
    IF DUSTY CONDITIONS PREVAIL, WORK IN FUME HOOD OR WEAR A NIOSH/MSHA
    APPROVED RESPIRATOR FOR DUST.
Ventilation:LOCAL EXHAUST: RECOMMENDED. MECHANICAL: RECOMMENDED.
Protective Gloves:RUBBER.
Eye Protection:CHEMICAL SAFETY GLASSES.
Other Protective Equipment:GOGGLES, SMOCK, APRON, PROPER GLOVES, EYE
    WASH STATION.
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING. REMOVE AND WASH
    CONTAMINATED CLOTHING.
Supplemental Safety and Health
CAROLINA P/N: 89-2053

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

HCC:N1
Boiling Pt:=100.C, 212.F
B.P. Text:LOSES WATER @
Melt/Freeze Pt:=48.C, 118.4F
M.P/F.P Text:RAPIDLY HEATED
Vapor Pres:NEGLIGIBLE AS SOLID
Spec Gravity:1.685@20C
Solubility in Water:42 G/100ML H20@0C.
Appearance and Odor:CLEAR TO WHITE CRYSTALS; NOT ODOR

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

Stability Indicator/Materials to Avoid:YES
STRONG OXIDIZERS: CAUSE VIGOROUS EXOTHERMIC REACTION. ACIDS: RELEASE
    SULFUR DIOXIDE GAS. WATER-REACTIVE MATERIALS SUCH AS SODIUM, CAUSE
    STRONG EXOTHERMIC REACTION WITH THE HYDRATE.
Stability Condition to Avoid:HIGH TEMPERATURES ABOVE 100C:YIELDS SULFUR
    DIOXIDE GAS AND HAZARDOUS RESIDUE.
Hazardous Decomposition Products:SULFUR DIOXIDE GAS: TOXIC,C ORROSIVE
    AND AN OXIDIZER. SODIUM SULFIDE RESIDUE: FLAMMABLE, DANGEROUS, FIRE
    RISK, STRONG IRRITANT TO SKIN AND TISSUE, INCOMPATIBLE WITH ACIDS.

===================  Toxicological Information	===================

Toxicological Information:NO OSHA/TWA OR ACGIH/TLV ESTABLISHED FOR
    SODIUM THIOSULFATE. ACGIH/TLV FOR SO2 IS 5 MG/CU M., WITH STEL 10
    MG/CU M.

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

Waste Disposal Methods:DISCHARGE, TREATMENT, OR DISPOSAL MAY BE SUBJECT
    TO FEDERAL, STATE OR LOCAL LAWS. THESE DISPOSAL GUIDE LINES ARE
    INTENDED FOR CATALOG-SIZE QUANTITIES ONLY. DISPOSE OF IN AN
    APPROVED INCINERATOR EQUIPP ED WITH AN AFTERBURNER AND SCRUBBER.
    DISSOLVE IN WATER AND FLUSH TO SEWER WITH COPIOUS AMOUNTS OF WA
    TER.

===================  MSDS Transport Information  ===================

Transport Information:D.O.T: NON-REGULATED.

=======================  Other Information  =======================

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