Duracell MN21 5000394203969 Data Sheet

Special Fire Fighting Procedures:  Firefighters should wear positive pressure self-contained breathing 
apparatus and full protective clothing. Fight fire from a distance or protected area. Cool fire exposed 
batteries to prevent rupture. Use caution when handling fire-exposed containers (containers may rocket or 
explode in heat of fire). 
 
Hazardous Combustion Products: Thermal degradation may produce hazardous fumes of mercury, zinc 
and manganese; hydrogen gas, caustic vapors of potassium hydroxide and other toxic by-products. 
 

SECTION 6: ACCIDENTAL RELEASE MEASURES 

 
Notify safety personnel of large spills. Caustic potassium hydroxide may be released from leaking or 
ruptured batteries. Clean-up personnel should wear appropriate protective clothing to avoid eye and skin 
contact and inhalation of vapors or fumes. Increase ventilation. Carefully collect batteries and place in an 
appropriate container for disposal.  
 

SECTION 7: HANDLING AND STORAGE 

 
Avoid mechanical or electrical abuse. Batteries may explode, pyrolize or vent if disassembled, crushed, 
recharged or exposed to high temperatures. Install batteries in accordance with equipment instructions.  
Replace all batteries in equipment at the same time. Do not carry batteries loose in a pocket or bag.  
 
Storage:  Store batteries in a dry place at normal room temperature. Do not refrigerate – this will not 
make them last longer. 
 

 
The following occupational exposure limits are provided for informational purposes. No exposure to the 
battery components should occur during normal consumer use. Refer to specific country regulations for 
additional exposure limit information. 
 

Manganese Dioxide 

0,5 mg/m

3

 TWA UK WEL 

0,5 mg/m

3

 TWA (inhalable) DFG MAK 

0,2 mg/m

3

 VL Belgium 

0,2 mg/m

3 

TWA Denmark LV 

Potassium Hydroxide 

2 mg/m

3 

STEL UK WEL 

2 mg/m

3 

VCD Belgium 

2 mg/m

3 

Ceiling Denmark LV 

Zinc 

None established for zinc metal 

Graphite 4 

mg/m

3 

TWA UK WEL (respirable dust) 

10 mg/m

3

 TWA UK WEL (inhalable dust) 

1,5 mg/m

3

 TWA DFG MAK (respirable dust) 

4 mg/m

3 

TWA DFG MAK (inhalable dust) 

2 mg/m

3 

VL Belgium (respirable dust) 

Mercury 0,1 

mg/m

3

 TWA DFG MAK Sh 

0,025 mg/m

3

 VL Belgium Note D 

0,025 mg/m

3 

TWA Denmark LV Note H 

 
Ventilation: No special ventilation is needed for normal use.