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APG Material Safety Data Sheet
Analytical Products Group, Inc. Date prepared on: 12/31/96
2730 Washington Blvd., Belpre, OH 45714 Last revised on: 02/27/07
740-423-4200 800-272-4442 Fax 740-423-5588
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Section I: Product Identification
CATALOG NUMBER: 182002, 182003 PRODUCT NAME: 0.0394 Sodium Thiosulfate
Section II - Hazardous Ingredients/Identity Information
Chemical Name CAS Reg. No. OSHA PEL (TWA) % Composition*
Sodium Thiosulfate Pentahydrate 10102-17-7 1%
N-Amyl Alcohol 71-41-0 0.5%
Non-Hazardous Ingredients/Identity Information
Chemical Name CAS Reg. No. OSHA PEL (TWA) % Composition*
Water 7732-18-5 98.5%
* Components are calculated on a weight/weight basis.
Section III - Physical/Chemical Characteristics of Hazardous Ingredients
Sodium Thiosulfate Pentahydrate
BOILING POINT: Decomposes @ 100o C SPECIFIC GRAVITY: 1.69
VAPOR PRESSURE: N/A SOLUBILITY IN WATER: Soluble APPEARANCE/ODOR: Colorless, odorless crystals
N-Amyl Alcohol
BOILING POINT: 138o C SPECIFIC GRAVITY: 0.8
o
VAPOR PRESSURE: 1mm Hg @ 13 C SOLUBILITY IN WATER: slightly APPEARANCE/ODOR: Colorless liquid with sweet
odor
Section IV - Fire and Explosion Hazard Data
FLASH POINT (Method used): Non-flammable AUTO IGNITION TEMPERATURE: N/A FLAMMABLE LIMITS LEL N/A UEL N/A
EXTINGUISHING MEDIA: Non-flammable: use agent most appropriate for surrounding fire.
SPECIAL FIRE FIGHTING PROCEDURES: As in any fire, wear a self-contained breathing apparatus in pressure demand, MSHA/NIOSH, and full protective gear. Use
water spray to keep exposed containers cool.
UNUSUAL FIRE AND EXPLOSION HAZARDS: N/A
Section V - Reactivity Data
Unstable Stable Conditions to Avoid:
STABILITY:
INCOMPATIBILITY (Materials to avoid):
SODIUM THIOSULFATE: Acids: reacts releasing sulfur dioxide, Chlorine (Solutions): Forms sodium hydrosulfate, Halogens: Reacts, Iodine: Incompatible, Lead Salts:
Incompatible, Mercury: Incompatible, Mercury Salts: Incompatible, Metal Nitrates: May form explosive mixtures, Oxidants: Reacts, Potassium: Incompatible, Potassium
Nitrate: Mixture is explosive on heating, Silver Salts: Incompatible, Sodium: Incompatible, Sodium Nitrate: Mixture is explosive on heating, Sodium Nitrite: May explode
violently on heat drying. N-Amyl Alcohol: Reaction may be violent with hydrogen trisulfide and oxidizing materials.
HAZARDOUS DECOMPOSITION PRODUCTS: Toxic oxides of Sodium & Sulfur, and Carbon.
HAZARDOUS May Occur Will Not Occur Conditions to Avoid: N/A
POLYMERIZATION:
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Section VI - Health Hazard Data
ROUTES OF Inhalation? Yes Skin? Yes Ingestion? Yes
ENTRY
HEALTH HAZARDS (Acute and Chronic): ACUTE - Inhalation: Irritant/Narcotic. May cause coughing, sneezing, lacrimation, sore throat, respiratory irritation, headache,
dyspnea, vertigo, and narcosis. Severe exposure may cause deafness, visual disturbances, pulmonary edema, and symptoms similar to those of ingestion. Skin
contact: Irritant/Narcotic. Acute Exposure - Irritation may occur, may be absorbed through the skin producing headache, dizziness, and symptoms similar to those of
ingestion. Eye contact: Corrosive. Acute exposure - May cause severe irritation redness, lacrimation, and corneal opacity. Ingestion: Narcotic. May cause vomiting,
cyanosis, headache, depression, diarrhea, tachycardia, tachypnea, hypotension, gastrointestinal disturbances, pulmonary edema, muscle tenderness, stupor, anuria,
methemoglobin formation, hypoglycemia. May also cause excitement, delirium, convulsions, unconsciousness, and coma. CHRONIC - Inhalation: May cause mucous
membrane irritation, and loss of appetite. Skin contact: Repeated or prolonged contact may cause dermatitis. Eye contact: Repeated or prolonged contact may
conjunctivitis. Ingestion: May cause liver damage.
COMPONENTS LISTED AS CARCINOGENS OR POTENTIAL CARCINOGENS: N/A
SIGNS AND SYMPTOMS OF EXPOSURE: Irritation of eyes, skin, respiratory and digestive tracts. May cause vomiting, headache, stupor, and excitement.
MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE: Skin and respiratory disorders.
EMERGENCY AND FIRST AID PROCEDURES: Inhalation: Remove from exposure area to fresh air immediately. If breathing has stopped, perform artificial respiration.
Keep person warm and at rest. Treat symptomatically and supportively. Get medical attention immediately. Skin contact: Remove contaminated clothing and shoes
immediately. Wash affected area with soap or mild detergent and large amounts of water until no evidence of chemical remains (approximately 15-20 minutes). Get
medical attention immediately. Eye contact: Wash eyes immediately with large amounts of water. Occasionally lifting upper and lower lids. Until no evidence of
chemical remains (at least 15-20 minutes). Continue irrigating with normal saline until the pH has returned to normal (30-60 minutes). Cover with sterile bandages. Get
medical attention immediately. Ingestion: First aid-Treat symptomatically and supportively. Get medical attention immediately. If vomiting occurs, keep head lower than
hips to prevent aspiration. ANTIDOTE: No specific antidote. Treat symptomatically and supportively.
Section VII - Precautions for Safe Handling and Use
STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED:
WASTE DISPOSAL METHOD: Dispose of in a manner consistent with federal, state and local regulations.
PRECAUTIONS TO BE TAKEN IN HANDLING AND STORAGE: Store at room temperature, capped.
OTHER PRECAUTIONS* N/A
Section VIII - Control Measures
RESPIRATORY PROTECTION (Please specify): Follow OSHA respirator regulations found in 29CFR 1010.134 when necessary.
VENTILATION: Provide local exhaust or general dilution ventilation.
PROTECTIVE GLOVES: Wear appropriate glove. EYE PROTECTION: Wear appropriate protective glasses or safety goggles.
OTHER PROTECTIVE EQUIPMENT:
EMERGENCY WASH FACILITIES: Provide eye-wash and quick-drench fountain in work area.
The information stated in this Material Safety Data Sheet (MSDS) is believed to be correct on the date of publication and must not
be considered all conclusive. The information has been obtained only by a search of available literature and is only a guide for
handling the chemicals. Persons not specifically and properly trained should not handle this chemical or its container. This
MSDS is provided without any warranty expressed or implied, including merchantability or fitness for any particular purpose.
This product is furnished for laboratory use ONLY! Our standards may not be used as drugs, cosmetics, agricultural or pesticidal
products, food additives or as house hold chemicals.
* Various Government agencies (i.e., Department of Transportation, Occupational Safety and Health Administration,
Environmental Protection Agency, and others) may have specific regulations concerning the transportation, handling, storage or
use of this product which may not be contained herein. The customer or user of this product should be familiar with these
regulations.
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