SDS

NH-20150615001 Issue date: 2015-06-18 Page 4 of 7
IX. PHYSICAL AND CHEMICAL PROPERTIES - ELECTROLYTE
Boiling Point@760
mm Hg
219 to 237° F
Specific Gravity @ 77
o
F (H
2
O=1) 1.1394 to 1.3028
Melting Point Not Applicable Vapor Pressure (mm Hg) 13.5 to 20.8
% Solubility in
Water
100 pH Less than 1
Evaporation Rate
(Butyl acetate=1)
Less Than 1 Vapor Density (AIR=1) Greater than 1
Viscosity Not applicable
Appearance and
Odor Threshold
A clear liquid with a sharp, penetrating,
pungent odor. A battery is a
manufactured article; no apparent odor.
% Volatiles by Volume @70
o
F Not Applicable
Octanol Water
Partition
Coefficient (K
ow
)
Not Applicable
Note: The properties above reflect 20-40% Sulfuric acid
X. STABILITY & REACTIVITY DATA
Stability: Stable X
Unstable ___
Conditions to Avoid: Prolonged overcharging and overheating current; sparks and other sources of ignition.
Incompatibilities: (materials to avoid)
Electrolyte: Contact with combustibles and organic materials may cause fire and explosion. Also reacts violently with strong
reducing agents, most metals, carbides, chlorates, nitrates, picrate, sulfur trioxide gas, strong oxidizers, and water. Contact with
metals may produce toxic sulfur dioxide fumes and may release flammable hydrogen gas. No further concern for mechanical
impact.
Lead compounds: Avoid contact with strong acids, bases, halides, halogenates, potassium nitrate, permanganate, peroxides, nascent
hydrogen, potassium, carbides, sulfides, phosphorus, sulfur, and reducing agents.
Hazardous Decomposition Products:
Electrolyte: Sulfur trioxide, carbon monoxide, sulfuric acid mist, sulfur dioxide, hydrogen sulfide, hydrogen.
Lead compounds: Temperatures above the melting point are likely to produce toxic metal fume, vapor, or dust; contact with strong
acid or base or presence of nascent hydrogen may generate highly toxic arsine gas.
Hazardous Polymerization: Will Not Occur
XI. TOXICOLOGICAL DATA
Routes of Entry:
Electrolyte: Harmful by all routes of entry. Under normal conditions of use, sulfuric acid vapors and mist are not generated.
Sulfuric acid vapors and mist may be generated when product is overheated, oxidized, or otherwise processed or damaged.
Lead compounds: Under normal conditions of use, lead dust, vapors, and fumes are not generated. Hazardous exposure can occur
only when product is heated above the melting point, oxidized or otherwise processed or damaged to create dust, vapor, or fume.
Acute Toxicity:
Inhalation LD
50
: Electrolyte: LC
50
rat: 375 mg/m
3
; LC
50
: guinea pig: 510 mg/m
3
Elemental Lead: Acute Toxicity Point Estimate = 4500 ppmV (based on lead bullion)
Oral LD
50
: Electrolyte: rat: 2140 mg/kg
Elemental lead: Acute Toxicity Estimate (ATE) = 500 mg/kg body weight (based on lead bullion)
Inhalation:
Electrolyte: Breathing of sulfuric acid vapors or mists may cause severe respiratory irritation.
Lead compounds: Inhalation of lead dust or fumes may cause irritation of upper respiratory tract and lungs.
Safety Data Sheet