Power-Sonic SAFETY DATA SHEET Sealed Nickel Cadmium Rechargeable Batteries User Manual

Page 2

Section 3 – Physical Properties

Each battery cell is a sealed cylindrical container enclosing a cadmium electrode, nickel electrode
and KOH or NaOH electrolyte.

Cadmium

Hydroxide

Nickel

Powder

Nickel

Hydroxide

Potassium
Hydroxide

Melting Point °F

610

N/A

2,831

% Volatile by Vol.

N/A

Evaporation Rate

N/A

Specific Gravity (H O)

8.65 @ 77°F

4.79

8.90

N/A

Solubility in Water

Insoluble

Practically

insoluble

Insoluble

Soluble in 0.9 parts
water, 0.6 part in
boiling water

Boiling Point °F

1,407

N/A

5,134

N/A

Vapor Pressure (mm Hg)

N/A

Vapor Density (air=1)

N/A

Appearance and Odor

Silver- white,

blue tinged,

lustrous metal

Powder

Apple green

powder

White or slightly

yellow

* Decomposes above 392°F into NiO and water

** Potassium Hydroxide is present as a liquid or paste and acts as the electrolyte in the battery cell.

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

Auto Ignition: N/A

Extinguishing Media: Any class of extinguishing media may be used on the batteries

FIRE FIGHTERS SHOULD USE SELF-CONTAINED BREATHING APPARATUS TO AVOID INHILATION OF HAZARDOUS

DECOMPOSITION PRODUCTS- SEE SECTION 2.

Exposure to temperatures above 212 °F can cause evaporation of the liquid content of the potassium hydroxide electrolyte,

resulting in the rupturing of the cell. Potential exposure to cadmium fumes during fire; use self-contained breathing

apparatus.

Section 4c – Spill Management Procedure

In the event of a battery rupture, prevent skin contact and collect all released material in a plastic lined container. Report all

spills in accordance with Federal, State and Local reporting requirements