Hazard Communication Sheet
MANGANESE DIOXIDE
MnO2
Manganese(IV) Oxide
o
DESCRIPTION
Dark-brown powder; m.p.-decomposes at 535 C. Insoluble in water.
CAS: 1313-13-9. UN numbers: 2881 (dry) 1378 (wetted).
HEALTH HAZARDS
HARMFUL: Harmful by inhalation and if swallowed
Long-term exposure can permanently damage the nervous
system, particularly the nerve cells of the brain and spinal chord.
Early symptoms of poisoning include tiredness and weakness in
the legs. As the disease progresses symptoms include
disturbances in speech, gait and balance with tremors of the
arms and legs. Emotional disturbances may also occur.
Irritating to the eyes, skin & respiratory system.
May impair fertility - men exposed to manganese dusts showed a decrease in fertility.
FIRST-AID
SAFETY HAZARDS
FIRE
INCOMPATIBLE withchlorates, chlorine trifluoride, hydrgen peroxide, carbides,
permonosulfuric acid, potassium azide, rubidium acetylene, sodium peroxide,
combustible materials, organic materials, reducing agents, strong acids.
REACTS with hydrochloric acid forming toxic gas (chlorine).
OXIDISER - greatly increases the burning rate of combustible materials.
DECOMPOSES on heating forming oxygen increasing fire hazard.
NOT COMBUSTIBLE. Enhances combustion of other substances.
SPILLAGE
EXPOSURE
CONTROLS
CONTAINMENT LEVEL 3
OCCUPATIONAL
EXPOSURE LIMIT
ISSUE
Inhalation: Remove from source of exposure. If breathing stops or shows signs of failing
apply artificial respiration. Use oxygen if breathing is laboured. Obtain medical help.
Skin Contact: Remove contaminated clothing and flush affected area with water for
at least 15 minutes. Treat patient as for inhalation. Obtain medical help.
Eyes: Flood with eyewash or water for at least 15 minutes. Obtain medical help.
Ingestion: Wash out mouth with water. Treat as for inhalation. Obtain medical help.
DATE:
© Risk Assessment Services
Refer to local spillage/emergency procedures.
Solutions can be absorbed using sand/proprietary adsorbent or transferred to a noncombustible closed container. Contaminated adsorbent/powder should be transferred
into a non-combustible container and disposed of as contaminated waste. Clean
up spills immediately, observing precautions in the Exposure Controls section.
Refer to local procedures/risk assessment for
specific personal protective equipment
requirements. Eye Protection and Chemical
Protective Clothing suitable for protection
against particulates must be worn where there is
risk of body contact. Respiratory Protective
Equipment and Local Exhaust Ventilation may
be required to protect against dust. Health
surveillance and exposure monitoring is required where exposure is significant
Health & Safety Executive : Workplace Exposure Limit
-3
8-Hour TWA : 5 mgm
15 minute TWA : None
2005
REF.
NUMBER:
196C99