International Chemical Safety Cards

MANGANESE ICSC: 0174

MANGANESE
(powder)
Mn
Atomic mass: 54.9
CAS # 7439-96-5
RTECS # OO927500
ICSC # 0174
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Combustible.
NO open flames.
Dry sand, special powder.
EXPLOSION Finely dispersed particles form explosive mixtures in air.
Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.

 
EXPOSURE
PREVENT DISPERSION OF DUST! AVOID EXPOSURE OF (PREGNANT) WOMEN!

INHALATION Cough. Shortness of breath.
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
SKIN


EYES
Safety goggles or eye protection in combination with breathing protection if powder.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
INGESTION Abdominal pain. Nausea.
Do not eat, drink, or smoke during work. Wash hands before eating.
Rinse mouth. Refer for medical attention.
SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
Sweep spilled substance into containers. Carefully collect remainder, then remove to safe place (extra personal protection: P2 filter respirator for harmful particles).
Separated from acids. Dry.

SEE IMPORTANT INFORMATION ON BACK
ICSC: 0174 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards

MANGANESE ICSC: 0174

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PHYSICAL STATE; APPEARANCE:
GRAY-WHITE POWDER.

PHYSICAL DANGERS:
Dust explosion possible if in powder or granular form, mixed with air.

CHEMICAL DANGERS:
Upon heating, toxic fumes are formed. Reacts violently with concentrated hydrogen peroxide. Reacts slowly with water more rapidly with steam and acids to produce flammable gas (hydrogen see - ICSC # 0001) causing fire and explosion hazard. Burns in nitrogen gas above 200°C.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV (as TWA): ppm; 5 (dust) or 1 (fume) mg/m3; as STEL: 3 mg/m3 (fume) (ACGIH 1994-1995).
MAK: ppm; 0.5 mg/m3 (1994).


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol or fumes, and by ingestion.

INHALATION RISK:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
Inhalation of dust may cause bronchitis and pneumonitis. The effects may be delayed.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the lungs and nervous system , resulting in bronchitis, pneumonitis, neurologic and neuropsychiatric disorders (manganism). Animal tests show that this substance possibly causes toxic effects upon human reproduction.
PHYSICAL
PROPERTIES
 Boiling point: 1962°C
Melting point: 1244°C		 Relative density (water = 1): 7.2-7.4
Solubility in water: none
ENVIRONMENTAL
DATA
N O T E S
Depending on the degree of exposure, periodic medical examination is indicated. The recommendations on this Card also apply to ferro manganese.
ADDITIONAL INFORMATION


ICSC: 0174 MANGANESE
© IPCS, CEC, 1993
IMPORTANT LEGAL NOTICE: Neither the CEC or the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use.