Analysis

Section 2 - Composition, Information on Ingredients

CAS#	Chemical Name	Percent	EINECS/ELINCS
16721-80-5	Sodium sulfhydrate	74	240-778-0
7732-18-5	Water	<25	231-791-2
1344-08-7	Sodium sulfide	1.5	215-686-9
7772-98-7	Sodium thiosulfate	0.4	231-867-5
497-19-8	Sodium carbonate anhydrous	0.3	207-838-8

Section 3 - Hazards Identification

Appearance: white to yellow flakes. Flash Point: 90 deg C.
Danger! Causes eye and skin burns. Pyrophoric. Spontaneously flammable in air. Contact with acids liberates toxic gas. May cause severe respiratory tract irritation with possible burns. May cause severe digestive tract irritation with possible burns.
Target Organs: Eyes, skin, mucous membranes.


Potential Health Effects
Eye: Causes eye burns. May cause chemical conjunctivitis and corneal damage.
Skin: Causes skin burns. May cause skin rash (in milder cases), and cold and clammy skin with cyanosis or pale color.
Ingestion: May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May cause perforation of the digestive tract. May cause severe digestive tract irritation with abdominal pain, nausea, vomiting and diarrhea. Mercaptans may cause nausea and headache. Exposure to high concentrations of mercaptans can produce unconsciousness with cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood), cold extremities and rapid pulse. May cause systemic effects.
Inhalation: Causes severe irritation of upper respiratory tract with coughing, burns, breathing difficulty, and possible coma. Aspiration may lead to pulmonary edema. May cause systemic effects. Exposure to high concentrations of mercaptans can produce unconsciousness with cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood), cold extremities and rapid pulse. Mercaptans may cause nausea and headache.
Chronic: Effects may be delayed.

Section 4 - First Aid Measures

Eyes: In case of contact, immediately flush eyes with plenty of water for a t least 15 minutes. Get medical aid immediately.
Skin: In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid immediately. Wash clothing before reuse.
Ingestion: If swallowed, do NOT induce vomiting. Get medical aid immediately. If victim is fully conscious, give a cupful of water. Never give anything by mouth to an unconscious person.
Inhalation: If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician: Treat symptomatically and supportively.

Section 5 - Fire Fighting Measures

General Information: Evacuate area and fight fire from a safe distance. As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. May burn with invisible flame. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Wear appropriate protective clothing to prevent contact with skin and eyes. Wear a self-contained breathing apparatus (SCBA) to prevent contact with thermal decomposition products. Spontaneously ignitable in air.
Extinguishing Media: Use dry sand or earth to smother fire. Use foam, dry chemical, or carbon dioxide. Contact professional fire-fighters immediately.
Flash Point: 90 deg C ( 194.00 deg F)
Autoignition Temperature: Not available.
Explosion Limits, Lower:4.3
Upper: 45.5
NFPA Rating: (estimated) Health: 3; Flammability: 4; Instability: 1

Section 6 - Accidental Release Measures

General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks: Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions. Remove all sources of ignition. Isolate area and deny entry. Provide ventilation. Place under an inert atmosphere. Do not use combustible materials such as paper towels to clean up spill.

Section 7 - Handling and Storage

Handling: Remove contaminated clothing and wash before reuse. Use only in a well-ventilated area. Minimize dust generation and accumulation. Use spark-proof tools and explosion proof equipment. Avoid contact with skin and eyes. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep away from heat, sparks and flame. Avoid ingestion and inhalation. Handle under an inert atmosphere. Do not allow contact with water. Discard contaminated shoes. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Storage: Keep away from heat, sparks, and flame. Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Keep away from acids. Do not expose to air. Store under an inert atmosphere.

Section 8 - Exposure Controls, Personal Protection

Engineering Controls: Use explosion-proof ventilation equipment. Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits

Chemical Name	ACGIH	NIOSH	OSHA - Final PELs
Sodium sulfhydrate	none listed	none listed	none listed
Water	none listed	none listed	none listed
Sodium sulfide	none listed	none listed	none listed
Sodium thiosulfate	none listed	none listed	none listed
Sodium carbonate anhydrous	none listed	none listed	none listed

OSHA Vacated PELs: Sodium sulfhydrate: No OSHA Vacated PELs are listed for this chemical. Water: No OSHA Vacated PELs are listed for this chemical. Sodium sulfide: No OSHA Vacated PELs are listed for this chemical. Sodium thiosulfate: No OSHA Vacated PELs are listed for this chemical. Sodium carbonate anhydrous: No OSHA Vacated PELs are listed for this chemical.
Personal Protective Equipment
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin: Wear appropriate protective gloves to prevent skin exposure.
Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators: A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.

Section 9 - Physical and Chemical Properties

Physical State: Flakes
Appearance: white to yellow
Odor: rotten egg-like - mild odor
pH: Alkaline in solution
Vapor Pressure: Not applicable.
Vapor Density: Not available.
Evaporation Rate:Not applicable.
Viscosity: Not applicable.
Boiling Point: 164.4 deg C
Freezing/Melting Point:52.2 deg C
Decomposition Temperature:Not available.
Solubility: Completely soluble in water.
Specific Gravity/Density:Not available.
Molecular Formula:NaSH
Molecular Weight:56.07

Section 10 - Stability and Reactivity

Chemical Stability: Stable under normal temperatures and pressures. Powder or liquid is pyrophoric.
Conditions to Avoid: Ignition sources, dust generation, moisture, exposure to air.
Incompatibilities with Other Materials: Acids, metals.
Hazardous Decomposition Products: Oxides of sulfur, hydrogen sulfide.
Hazardous Polymerization: Has not been reported.

Section 11 - Toxicological Information

RTECS#:      
CAS# 16721-80-5: WE1900000      
CAS# 7732-18-5: ZC0110000      
CAS# 1344-08-7 unlisted.      
CAS# 7772-98-7: XN6476000      
CAS# 497-19-8: VZ4050000
LD50/LC50:
Not available.

CAS# 7732-18-5:
     Oral, rat: LD50 = >90 mL/kg;
.

CAS# 1344-08-7:
.

CAS# 7772-98-7:
.

CAS# 497-19-8:
     Draize test, rabbit, eye: 100 mg/24H Moderate;
     Draize test, rabbit, eye: 50 mg Severe;
     Draize test, rabbit, skin: 500 mg/24H Mild;
     Inhalation, mouse: LC50 = 1200 mg/m3/2H;
     Inhalation, rat: LC50 = 2300 mg/m3/2H;
     Oral, mouse: LD50 = 6600 mg/kg;
     Oral, mouse: LD50 = 6600 mg/kg;
     Oral, rat: LD50 = 4090 mg/kg;
.

Carcinogenicity:
CAS# 16721-80-5: Not listed by ACGIH, IARC, NTP, or CA Prop 65.
CAS# 7732-18-5: Not listed by ACGIH, IARC, NTP, or CA Prop 65.
CAS# 1344-08-7: Not listed by ACGIH, IARC, NTP, or CA Prop 65.
CAS# 7772-98-7: Not listed by ACGIH, IARC, NTP, or CA Prop 65.
CAS# 497-19-8: Not listed by ACGIH, IARC, NTP, or CA Prop 65.

Epidemiology: No information found
Teratogenicity: No information found
Reproductive Effects: No information found
Mutagenicity: See actual entry in RTECS for complete information.
Neurotoxicity: No information found
Other Studies:

Section 12 - Ecological Information

No information available.

Section 13 - Disposal Considerations

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.

Section 14 - Transport Information

	US DOT	Canada TDG
Shipping Name:	SODIUM HYDROSULFIDE	No information available.
Hazard Class:	4.2
UN Number:	UN2318
Packing Group:	II

Section 15 - Regulatory Information

US FEDERAL

TSCA
     CAS# 16721-80-5 is listed on the TSCA inventory.
     CAS# 7732-18-5 is listed on the TSCA inventory.
     CAS# 1344-08-7 is listed on the TSCA inventory.
     CAS# 7772-98-7 is listed on the TSCA inventory.
     CAS# 497-19-8 is listed on the TSCA inventory.
Health & Safety Reporting List
     None of the chemicals are on the Health & Safety Reporting List.
Chemical Test Rules
     None of the chemicals in this product are under a Chemical Test Rule.
Section 12b
     None of the chemicals are listed under TSCA Section 12b.
TSCA Significant New Use Rule
     None of the chemicals in this material have a SNUR under TSCA.
CERCLA Hazardous Substances and corresponding RQs
     CAS# 16721-80-5: 5000 lb final RQ; 2270 kg final RQ
SARA Section 302 Extremely Hazardous Substances
     None of the chemicals in this product have a TPQ.
SARA Codes
     CAS # 16721-80-5: immediate, delayed, reactive.
     CAS # 497-19-8: immediate.
Section 313      No chemicals are reportable under Section 313.
Clean Air Act:
     This material does not contain any hazardous air pollutants.
     This material does not contain any Class 1 Ozone depletors.
     This material does not contain any Class 2 Ozone depletors.
Clean Water Act:
CAS# 16721-80-5 is listed as a Hazardous Substance under the CWA.
     None of the chemicals in this product are listed as Priority Pollutants under the CWA.
     None of the chemicals in this product are listed as Toxic Pollutants under the CWA.
OSHA:
     None of the chemicals in this product are considered highly hazardous by OSHA.
STATE
     CAS# 16721-80-5 can be found on the following state right to know lists: California, New Jersey, Pennsylvania, Massachusetts.
     CAS# 7732-18-5 is not present on state lists from CA, PA, MN, MA, FL, or NJ.
     CAS# 1344-08-7 is not present on state lists from CA, PA, MN, MA, FL, or NJ.
     CAS# 7772-98-7 is not present on state lists from CA, PA, MN, MA, FL, or NJ.
     CAS# 497-19-8 is not present on state lists from CA, PA, MN, MA, FL, or NJ.

California Prop 65

California No Significant Risk Level: None of the chemicals in this product are listed.

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols:
     C
Risk Phrases:
     R 31 Contact with acids liberates toxic gas.
     R 34 Causes burns.
     R 7 May cause fire.

Safety Phrases:
     S 25 Avoid contact with eyes.
     S 36/37/39 Wear suitable protective clothing, gloves and eye/face pr
     otection.
     S 45 In case of accident or if you feel unwell, seek medical advice
     immediately (show the label where possible).
     S 50A Do not mix with acids.

WGK (Water Danger/Protection)
     CAS# 16721-80-5: 2
     CAS# 7732-18-5: No information available.
     CAS# 1344-08-7: No information available.
     CAS# 7772-98-7: 0
     CAS# 497-19-8: 1
Canada - DSL/NDSL
     CAS# 16721-80-5 is listed on Canada's DSL List.
     CAS# 7732-18-5 is listed on Canada's DSL List.
     CAS# 1344-08-7 is listed on Canada's DSL List.
     CAS# 7772-98-7 is listed on Canada's DSL List.
     CAS# 497-19-8 is listed on Canada's DSL List.
Canada - WHMIS
     This product has a WHMIS classification of B4, E.
This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations and the MSDS contains all of the information required by those regulations.
Canadian Ingredient Disclosure List
     CAS# 16721-80-5 is listed on the Canadian Ingredient Disclosure List.
     CAS# 497-19-8 is listed on the Canadian Ingredient Disclosure List.

Section 16 - Additional Information

MSDS Creation Date: 9/02/1997
Revision #9 Date: 11/06/2007

The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall Fisher be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if Fisher has been advised of the possibility of such damages.