Hazardous Materials Report Form, 7 World Trade Center

NYC 9/11 Public Portal Document

Yyuasa MATERIAL SAFETY DATA SHEET Form # 853020

Revised: 4/20/2000 Supersedes: 5/4/1998 Page 2 of 9

in. PHYSICAL DATA

Electrolyte:

Boiling Point: 203-204°F Specific Gravity (H2O = 1) 1.215 to 1.350

Melting Point: Not Applicable Vapor Pressure (nun Hg): 10

Solubility in Water 100% Vapor Density (AIR = 1): Greater than 1

Evaporation Rate: Less than 1 % Volatile by Weight Not Applicable (Butyl acetate = 1)

Appearance and Odor: Manufactured article; no apparent odor. Electrolyte is a clear liquid with a sharp, penetrating, pungent odor.

IV. FIRE AND EXPLOSION HAZARD DATA

Flash Point: Not Applicable Flammable Limits: LEL = 4.1% (Hydrogen Gas) UEL = 74.2%

Extinguishing media:CO2; foam; dry chemical

Special Fire Fighting Procedures: If batteries are on charge, shut off power. Use positive pressure, selfcontained breathing apparatus. Water applied to electrolyte generates heat and causes it to spatter. Wear acid-resistant clothing.

Unusual Fire and Explosion hazards:Highly flammable hydrogo gas is generated during charging and operation of batteries. To avoid risk of fire or explosion, keep sparks or other sources of ignition away from batteries. Do not allow metallic materials to simultaneously contact negative and positive terminals of cils and batteries. Follow manufacturer^ instructions for installation and service.

V. REACTIVITY DATA

Stability: Stable X Conditions to Avoid: Prolonged overcharge; sources of ignition Unstable ___

Incompatibility^: (materials to avoid)

Sulfuric acid: Contact with combustibles and organic materials may cause fire and explosion. Also reacts violently with strong reducing agents, metals, sulfur trioxide gas, strong oxidizers and water. Contact with metals may produce toxic sulfur dioxide fumes and may release flammable hydrogen gas.

Lead compounds: Avoid contact with strong acids, bases, halides, halogenates, potassium nitrate, pemanganate, peroxides, nascent hydrogen and reducing agents.

Hazardous Decomposition Products:

Sulfuric acid: Sulfur trioxide, carbon monoxide, sulfuric acid mist, sulfur dioxide, and hydrogen.

Lead compounds: High temperatures likely to produce toxic mebl fume, vapor or dust; contact with strong acid or base or presence of nascent hydrogen may generate highly toxic arsine gas.

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