Power-Sonic SAFETY DATA SHEET Secondary Sealed Nickel-Metal Hydride Rechargeable Batteries - Manual (Page 2)

2
Section 3 – Physical Composition
Metal % by Weight
Iron (Fe) 23-27
Nickel (Ni) 17-23
Metal Hydride (MH) 25-35
Cobalt (Co) 0.4-1.0
Plastics % by Weight
Polypropylene (PP) 2.5-3.5
Rubber (EPDM) <0.05
Polyethylene (PE) 0.2-0.4
PVC 0.5-0.7
Other % by Weight
Potassium (K) 1.8-2.5
Water (H²O) 4-7
Hydroxide (OH) 9-11
Section 4a – Flammability Data
Melting Point (°F) N/A Vapor Pressure (mm Hg) N/A
Boiling Point (°F) N/A Evaporation Rate N/A Solubility in Water N/A
% Volatile by Volume N/A Vapor Density (Air=1) N/A Appearance and Odor
Geometric solid object no odor
Section 4b – Fire and Explosion Hazard Data
Flash Point: N/A Lower Explosion Limit: N/A Upper Explosive Limit: N/A Flammable Limits in Air(%): N/A
you use water, use enough to smother the fire. Using an insufficient amount of water could possibly make the fire worse.
Cooling the exterior of the batteries will help prevent rupturing. Burning of the batteries will generate toxic fumes.
FIRE FIGHTERS SHOULD USE SELF-CONTAINED BREATHING APPARATUS.
Exposure to temperatures above 212 °F can cause venting of the liquid electrolyte, internal shorting could also cause venting
of the electrolyte. There is potential for exposure to iron, nickel, cobalt, rare earth metals ( cerium, lanthanum, neodymium
and praseodymium), manganese and aluminum fumes during a fire.
Section 4c – Spill Management Procedure
The sealed NiMH cells when sleeved are safe if spilled. Non sleeved cells may generate short- circuits, causing release of
alkaline electrolyte mist or liquid. Electrolyte reacts with zinc, aluminum, tin and other active materials releasing flammable
hydrogen gas. In such case, use self contained breathing apparatus and protective clothing.