MSDS
Material Safety Data Sheet
PO Box 329 鈥? 802 Washington Avenue 鈥? Chestertown, MD 21620 鈥? USA
Telephone Number For Information 410-778-3100
24 Hour Emergency Number (CHEM-TEL): USA, Canada, Puerto Rico 800-255-3924;
Outside North American continent 813-248-0585 (call collect)
1. Product Identification Manufactured By: LaMotte Company
4169 802 Washington Avenue
Product Code:
Sodium Thiosulfate, .025 N
Product Description: Chestertown, MD 21620
2. Composition/Information on Ingredients
Hazardous Name CAS # % OSHA ACGIH
PEL TLV
Yes Sodium Hydroxide 1310-73-2 <0.1 2 mg/cubic m C 2mg/cubic m
Yes Sodium Thiosulfate, 5-hydrate 10102-17-7 <1 N/E N/E
Water to 100%
3. Hazards Overview
Primary Route of Entry: Ingestion Skin
Large doses by mouth can cause GI irritation. Prolonged contact may cause skin irritation.
HMIS Hazard: (Scale: 4 = Extreme, 3 = High, 2 = Moderate, 1 = Slight, 0 = Least)
Health: 1 Flammability: 0 Reactivity: 0
Carcinogenicity: None
Other Health Related Comments:
4. First Aid Measures
Flush with water for 15 minutes.
Eye Contact:
Flush with water. Wash with soap and water.
Skin Contact:
Drink plenty of water. Consult a physician.
Ingestion:
N/A
Inhalation:
5. Fire Fighting Measures
Flash Point: N/A LEL: N/A UEL: N/A
Fire Rating
Extinguishing Media: Not a fire hazard
Special Fire Fighting Procedures: N/A
Hazardous Combustion and/or Decomposition Products: N/A
Unusual Fire & Explosion Hazard: N/A
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Product Code: 4169 Product Description: Sodium Thiosulfate, .025 N
6. Accidental Release Measures
Neutralize with vinegar or other dilute acid to pH 7 鈥? 8 and mop up.
7. Handling & Storage
Store in cool area out of direct sunlight.
8. Exposure Controls/Personal Protection
Ventilation
Use with adequate ventilation.
Protection When Handling
Gloves Eye Protection
Work/Hygienic Practices: Avoid contact with eyes or skin.
9. Physical & Chemical Properties
Appearance: Colorless Clear Liquid Boiling Point: ca. 100 degC
Melting Point: Unknown
pH: 12
Odor: None Vapor Density: <1 (Air=1)
Solubility in Water: Soluble Vapor Pressure: <17 mm @ 20 deg C
10. Stability & Reactivity
Yes
Stable:
Conditions to Avoid: Heat, light
Materials to Avoid: N/A
Hazardous Decomposition Products: N/A
11. Toxicological Information
Non-toxic
Target Organs: N/A
12. Ecological Information
Information not Available
13. Disposal Considerations
Neutralize with dilute acid and wash down drain with excess water.
14. Transport Information
Not regulated for transport
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Product Code: 4169 Product Description: Sodium Thiosulfate, .025 N
15. Regulatory Information
Chemical Inventory Status
USA Europe ---Canada--- Australia Japan
Ingredient TSCA EC DSL NDSL
Sodium Hydroxide Yes Yes Yes No Yes Yes
Sodium Thiosulfate, anhydrous Yes Yes Yes No Yes Yes
(7772-98-7)
Water to 100%
Federal, State, & International Regulations
---SARA 302--- - -------- SARA 313 --------- RCRA TSCA
Ingredient RQ TPQ Listed Chemical Category CERCLA 261.33 8(D)
Sodium Hydroxide No No No No 1000 No No
Sodium Thiosulfate, No No No No No No No
anhydrous
(7772-98-7)
Water to 100%
----------- Australia -----------
------ SARA 311/312 ------ Hazchem Poison This MSDS is
Ingredient Hazard Categories Code Schedule WHMIS Compliant
Sodium Hydroxide Acute: Yes Chronic: No Fire: No 2R S6
Pressure: No Reactivity: Yes
(Pure/Solid)
Sodium Thiosulfate, Acute: Yes Chronic: No Fire: No None None allocated
5-hydrate Pressure: No Reactivity: No allocated
(Pure/Solid)
Water to 100%
Acute: Yes Chronic: No Fire: No None None allocated Yes
For product 4169 liquid
Pressure: No Reactivity: No allocated
mixture, as a whole
16. Other Information
Australia: This product not classified as a hazardous substance according to thecriteria of ASCC (based on a
risk assessment according to ASCC/NOHSC criteria.
Prepared By: IP
Revised: 12/06/2007
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