5503-41-3

EMERGENCY OVERVIEW
Irritating to eyes and skin.The toxicological properties of this material have not been fully investigated.
Potential Health Effects
Eye:
Causes eye irritation and possible burns. May cause chemical conjunctivitis.
Skin:
Causes skin irritation and possible burns.
Ingestion:
May cause cardiac disturbances. The toxicological properties of this substance have not been fully investigated. May cause central nervous system effects. May cause irritation of the digestive tract and possible burns.
Inhalation:
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. Central nervous system effects, which appear to predominate in acute cases are characterized by abnormal fatigue, memory difficulties and dizziness.
Chronic:
Effects may be delayed.

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Section 4 - FIRST AID MEASURES
Eyes: Get medical aid. Do NOT allow victim to rub or keep eyes closed.
Extensive irrigation with water is required (at least 30 minutes).
Skin:
Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. Get medical aid. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Notes to Physician:
Treat symptomatically and supportively.

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Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Non-combustible, substance itself does not burn but may decompose upon heating to produce irritating, corrosive and/or toxic fumes. Runoff from fire control or dilution water may cause pollution.
Extinguishing Media:
Use water spray to cool fire-exposed containers. Do NOT get water inside containers. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray.

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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.
Provide ventilation.

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Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use only in a chemical fume hood. Wash clothing before reuse.
Storage:
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area.

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Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
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. Use only under a chemical fume hood.
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 a chemical apron. Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

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Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Powder
Appearance: green to dark green - green
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 88-90C
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Not available.
Specific Gravity/Density: .888
Molecular Formula: (CH3Co2)Rh2
Molecular Weight: 441.98

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Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid:
Incompatible materials, dust generation, excess heat, strong oxidants.
Incompatibilities with Other Materials:
Oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, rhodium/rhodium oxides.
Hazardous Polymerization: Has not been reported

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Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 5503-41-3: AJ3880000 LD50/LC50:
Not available.
Carcinogenicity:
Rhodium Acetate Dimer, Anhydrous,ca 46% Rh - ACGIH: A4 - Not Classifiable as a Human Carcinogen (listed as ** See actual entry in RTECS for complete information.

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Section 12 - ECOLOGICAL INFORMATION

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Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

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Section 14 - TRANSPORT INFORMATION

IATA
Shipping Name: CORROSIVE SOLID, N.O.S.*
Hazard Class: 8
UN Number: 1759
Packing Group: III
IMO
Shipping Name: CORROSIVE SOLID, N.O.S.
Hazard Class: 8
UN Number: 1759
Packing Group: III
RID/ADR
Shipping Name: CORROSIVE SOLID, N.O.S.
Dangerous Goods Code: 8(65C)
UN Number: 1759

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Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XI
Risk Phrases:
R 36/38 Irritating to eyes and skin.
Safety Phrases:
S 15 Keep away from heat.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 28A After contact with skin, wash immediately with
plenty of water.
S 37/39 Wear suitable gloves and eye/face
protection.
WGK (Water Danger/Protection)
CAS# 5503-41-3: No information available.
United Kingdom Occupational Exposure Limits
CAS# 5503-41-3: OES-United Kingdom, TWA (listed as ** undefined
**): metal fume and dust, as Rh: 0.1 mg/m3 TWA
CAS# 5503-41-3: OES-United Kingdom, STEL (listed as ** undefined
**): metal fume and dust, as Rh: 0.3 mg/m3 STEL
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 5503-41-3 is not listed on Canada's Ingredient Disclosure List.
Exposure Limits
CAS# 5503-41-3: OEL-AUSTRALIA:TWA 1 mg(Rh)/m3
OEL-BELGIUM:TWA 1 mg(Rh)/m3
OEL-DENMARK:TWA 0.001 mg(Rh)/m3 JANUARY 1993
OEL-DENMARK:TWA 0.1 mg(Rh)/m3
OEL-FINLAND:TWA 0.001 mg(Rh)/m3;Skin JANUARY 199
OEL-FINLAND:TWA 0.1 mg(Rh)/m3
OEL-FRANCE:TWA 1 mg(Rh)/m3
OEL-THE NETHERLANDS:TWA 0.001 mg(Rh)/m3 JANUARY 1993
OEL-THE NETHERLANDS:TWA 0.1 mg(Rh)/m3
OEL-THE PHILIPPINES:TWA 0.1 mg(Rh)/m3
OEL-SWITZERLAND:TWA 0.001 mg(Rh)/m3 JANUARY 1993
OEL-SWITZERLAND:TWA 0.1 mg(Rh)/m3
OEL-UNITED KINGDOM:TWA 0.001 mg(Rh)/m3;STEL 0.003 mg(Rh)/m3
OEL-UNITED KINGDOM:TWA 0.1 mg(Rh)/m3;STEL 0.3 mg(Rh)/m3
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGI TLV
US FEDERAL
TSCA
CAS# 5503-41-3 is not listed on the TSCA inventory.
It is for research and development use only.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

MOLECULAR FORMULA :

C4-H6-O4.Rh

MOLECULAR WEIGHT :

221.01

WISWESSER LINE NOTATION :

OV1 2 &-RH-

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

27 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TYPE OF TEST :

DNA adduct

TEST SYSTEM :

Mammal - species unspecified Lymphocyte

DOSE/DURATION :

100 umol/L

REFERENCE :

CCROBU Cancer Chemotherapy Reports, Part 1. (Washington, DC) V.52(6)-59, 1968-75. For publisher information, see CTRRDO. Volume(issue)/page/year: 59,611,1975 *** REVIEWS *** ACGIH TLV-TWA 1 mg(Rh)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-Not classifiable as a human carcinogen DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 0.1 mg(Rh)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,222,1971 OSHA PEL (Gen Indu):8H TWA 0.001 mg(Rh)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 0.001 mg(Rh)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 0.001 mg(Rh)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 0.001 mg(Rh)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 1 mg(Rh)/m3 JAN 1993 OEL-BELGIUM:TWA 1 mg(Rh)/m3 JAN 1993 OEL-DENMARK:TWA 0.001 mg(Rh)/m3 JAN 1993 OEL-DENMARK:TWA 0.1 mg(Rh)/m3 JAN 1993 OEL-FINLAND:TWA 0.001 mg(Rh)/m3;Skin JAN 1993 OEL-FINLAND:TWA 0.1 mg(Rh)/m3 JAN 1993 OEL-FRANCE:TWA 1 mg(Rh)/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 0.001 mg(Rh)/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 0.1 mg(Rh)/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 0.1 mg(Rh)/m3 JAN 1993 OEL-SWITZERLAND:TWA 0.001 mg(Rh)/m3 JAN 1993 OEL-SWITZERLAND:TWA 0.1 mg(Rh)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.001 mg(Rh)/m3;STEL 0.003 mg(Rh)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.1 mg(Rh)/m3;STEL 0.3 mg(Rh)/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV