638-38-0

EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. In high doses, manganese may increase anemia by interfering with iron absorption.
Inhalation:
May cause respiratory tract irritation.
Chronic:
Chronic manganese toxicity through inhalation may result in "manganism", which is a disease of the central nervous system involving psychic and neurological disorders.

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Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:

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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.
Extinguishing Media:
Use agent most appropriate to extinguish fire. Use water spray, dry chemical, carbon dioxide, or appropriate foam.

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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. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid breathing dust.
Storage:
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.

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Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 638-38-0: United States OSHA: 5 mg/m3 Ceiling (as Mn) (listed under Mangan compounds, n.o.s.).
Belgium - TWA: (listed as manganese compounds, n.o.s.): 0.2 mg/m3 (as Mn) Japan: (listed as manganese compounds, n.o.s.): 0.3 mg/m3 OEL (ex organic compounds, as Mn) Netherlands: (listed as manganese compounds, n.o.s.): 3 mg/m3 STE (as Mn) Netherlands: (listed as manganese compounds, n.o.s.): 1 mg/m3 MAC Mn) CAS# 6156-78-1: United States OSHA: 5 mg/m3 Ceiling (as Mn) (listed under Mangan compounds, n.o.s.).
Belgium - TWA: (listed as manganese compounds, n.o.s.): 0.2 mg/m3 (as Mn) Japan: (listed as manganese compounds, n.o.s.): 0.3 mg/m3 OEL (ex organic compounds, as Mn) Netherlands: (listed as manganese compounds, n.o.s.): 3 mg/m3 STE (as Mn) Netherlands: (listed as manganese compounds, n.o.s.): 1 mg/m3 MAC Mn) 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 prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

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Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Crystals
Color: light pink
Odor: None reported.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: > 300 deg C
Autoignition Temperature: Not available.
Flash Point: > 130 deg C (> 266.00 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: >300 deg C
Solubility in water: Soluble.
Specific Gravity/Density: 1.580 g/cm3
Molecular Formula: C4H6O4Mn.4H2O
Molecular Weight: 245.09

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Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Dust generation.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong acids, strong bases.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: Has not been reported.

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Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 638-38-0: AI5770000 CAS# 6156-78-1: AI5775000 LD50/LC50:
CAS# 638-38-0: Oral, rat: LD50 = 2940 mg/kg.
CAS# 6156-78-1: Oral, rat: LD50 = 3730 mg/kg.
Carcinogenicity:
Manganese(2+) acetate anhydrous - Not listed by ACGIH, IARC, or NTP.
Manganese(II) acetate tetrahydrate - Not listed by ACGIH, IARC, or NTP.
Other:
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
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

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Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 638-38-0: No information available.
CAS# 6156-78-1: 1
Canada
CAS# 638-38-0 is listed on Canada's NDSL List.
CAS# 638-38-0 is listed on Canada's Ingredient Disclosure List.
CAS# 6156-78-1 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 638-38-0 is listed on the TSCA inventory.
CAS# 6156-78-1 is not on the TSCA Inventory because it is a hydrate.
It is considered to be listed if the CAS number for the anhydrous form
is on the inventory (40CFR720.3(u)(2)).

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SECTION 16 - ADDITIONAL INFORMATION
N/A

MOLECULAR WEIGHT :

173.04

WISWESSER LINE NOTATION :

OV1 2 &-MN-

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

2940 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TYPE OF TEST :

DNA repair

TEST SYSTEM :

Bacteria - Bacillus subtilis

DOSE/DURATION :

50 mmol/L

REFERENCE :

MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 31,185,1975 *** REVIEWS *** ACGIH TLV-TWA 0.2 mg(Mn)/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 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:CL 5 mg(Mn)/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: 3,149,1971 OSHA PEL (Gen Indu):CL 5 mg(Mn)/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):CL 5 mg(Mn)/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):CL 5 mg(Mn)/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):CL 5 mg(Mn)/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 5 mg(Mn)/m3 JAN 1993 OEL-BELGIUM:TWA 5 mg(Mn)/m3 JAN 1993 OEL-DENMARK:TWA 2.5 mg(Mn)/m3 JAN 1993 OEL-FINLAND:TWA 2.5 mg(Mn)/m3 JAN 1993 OEL-HUNGARY:TWA 0.3 mg(Mn)/m3;STEL 0.6 mg(Mn)/m3 JAN 1993 OEL-JAPAN:TWA 0.3 mg(Mn)/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 1 mg(Mn)/m3 JAN 1993 OEL-POLAND:TWA 0.3 mg(Mn)/m3 JAN 1993 OEL-SWEDEN:TWA 1 mg(Mn)/m3;STEL 2.5 mg(Mn)/m3 (resp. dust) JAN 1993 OEL-SWEDEN:TWA 2.5 mg(Mn)/m3;STEL 5 mg(Mn)/m3 (total dust) JAN 1993 OEL-UNITED KINGDOM:TWA 5 mg(Mn)/m3 JAN 1993 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84621 No. of Facilities: 88 (estimated) No. of Industries: 2 No. of Occupations: 5 No. of Employees: 1178 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84621 No. of Facilities: 33 (estimated) No. of Industries: 2 No. of Occupations: 3 No. of Employees: 1283 (estimated) No. of Female Employees: 241 (estimated)