Product ID:352 SODIUM THIOSULFATE STD SOLN; 0.25N
MSDS Date:04/12/1986
FSC:6810
NIIN:00D001840
MSDS Number: BBFMJ

HACH COMPANY

100 DAYTON RD
AMES, IA 50010
US

Emergency Phone: 515-232-2533

Info Phone: 303-669-3050

Cage: 4T252

HACH COMPANY

907 AMES, IA 50010 US

Telephone: 800-227-4224

Cage: 4T252

SODIUM THIOSULFATE

CAS: 10102-17-7

RTECS: WE6660000

Fraction By Weight: <5%

OTHER COMPONENT (NON-HAZARDOUS)

Fraction By Weight: <1%

DEMINERALIZED WATER

CAS: 7732-18-5

RTECS: ZC0110000

Fraction By Weight: 10 100%

Routes of Entry: Inhalation:YES Skin:NO Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:PRODUCT IS CORROSIVE TO EYES,AND
IRRIATING TO SKIN & MUCOUS MEMBRANES.
Effects of Overexposure:BURNING,IRRITATION OF AREA OF CONTACT.
Medical Cond Aggravated by Exposure:NONE

First Aid:EYES:FLUSH WITH WATER. SKIN:REMOVE CONTAMINATED CLOTHING.
FLUSH WITH WATER. INHALED:HIGHLY UNLIKELY UNDER NORMAL CONDITIONS
OF USE. INGESTED:DO NOT INDUCE VOMITING. GIVE LARGE QUANTITIES OF
WATER PLUS AT LEAST 1 OZ.VINEGAR DILUTED WITH AN EQUAL AMOUNT OF
WATER. GET MEDICAL ATTENTION.

Flash Point:NONE
Extinguishing Media:USE MEDIA APPROPRIATE FOR SURROUNDING FIRE.
Fire Fighting Procedures:WEAR SELF CONTAINED BREATHING APPARATUS.
Unusual Fire/Explosion Hazard:NONE

Spill Release Procedures:DILUTE WITH WATER.
Neutralizing Agent:ACETIC ACID

Handling and Storage Precautions:STORE IN A COOL,DRY AREA. PROTECT FRON
SUNLIGHT.

Respiratory Protection:NONE NORMALLY NEEDED. USE NIOSH RESPIRATOR OR
SUPPLIED AIR RESPIRATOR IF EXPOSED ABOVE TLV.
Ventilation:USE HOOD OR OTHER LOCAL EXHAUST TO MAINTAIN EXPOSURE BELOW
TLV FOR NUISANCE DUST OR MIST.
Protective Gloves:NONE
Eye Protection:SAFETY GLASSES
Other Protective Equipment:EYE WASH,SAFETY SHOWER,LAB COAT OR APRON
Work Hygienic Practices:USE NORMAL CHEMICAL HYGIENE PRACTICES.
Supplemental Safety and Health

HCC:N1
Boiling Pt:B.P. Text:>212F/100C
Spec Gravity:0.987
pH:11.2
Solubility in Water:MISCIBLE
Appearance and Odor:CLEAR,COLORLESS LIQUID, NO ODOR

Stability Indicator/Materials to Avoid:YES
ACIDS
Stability Condition to Avoid:HEAT & LIGHT
Hazardous Decomposition Products:NONE (HMIS: MAY EMIT SO*2)

Waste Disposal Methods:DISPOSE I/A/W FEDERAL,STATE,LOCAL REGULATIONS.
MFG. SUGGESTS FLUSH TO DRAIN.

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.