MSDS

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Incompatibilities: (materials to avoid)
Electrolyte: 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. No further concern for mechanical impact.
Lead compounds: Avoid contact with strong acids, bases, halides, halogenates, potassium nitrate, permanganate, peroxides,
nascent hydrogen, and reducing agents.
Arsenic compounds: strong oxidizers; bromine azide. NOTE: hydrogen gas can react with inorganic arsenic to form the highly
toxic gas - arsine
Hazardous Decomposition Products:
Electrolyte: Sulfur trioxide, carbon monoxide, sulfuric acid mist, sulfur dioxide, hydrogen sulfide.
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.
Lead/arsenic compounds: 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. The presence of nascent hydrogen may generate highly toxic arsine gas.
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)
Elemental arsenic: No data
Oral LD
50
: Electrolyte: rat: 2140 mg/kg
Elemental lead: Acute Toxicity Estimate (ATE) = 500 mg/kg body weight (based on lead bullion)
Elemental arsenic: LD
50
mouse: 145 mg/kg
Inhalation:
Electrolyte: Breathing of sulfuric acid vapors or mists may cause severe respiratory irritation. May lead to increase of risk of lung
cancer.
Lead compounds: Inhalation of lead dust or fumes may cause irritation of upper respiratory tract and lungs.
Ingestion:
Electrolyte: May cause severe irritation of mouth, throat, esophagus, and stomach.
Lead/arsenic compounds: Acute ingestion may cause abdominal pain, nausea, vomiting, diarrhea, and severe cramping. This may
lead rapidly to systemic toxicity. Acute ingestion should be treated by physician.
Skin Contact:
Electrolyte: Severe irritation, burns, and ulceration. Sulfuric acid is not readily absorbed through the skin and is not a dermal
sensitizer.
Lead compounds: Not absorbed through the skin and is not a dermal sensitizer.
Arsenic compounds: Contact may cause dermatitis and skin hyperpigmentation. Arsenic pentoxides are dermal sensitizers.
Eye Contact:
Electrolyte: Severe irritation, burns, cornea damage, blindness.
Lead/arsenic compounds: May cause eye irritation.
Synergistic Products:
Electrolyte: No known synergistic products
Lead compounds: Synergistic effects have been noted with heavy metals (arsenic, cadmium, mercury), N-nitroso-N-
(hydroxyethyl)ethylamine, N-(4-fluoro-4-biphenyl)acetamide, 2-(nitrosoethylamine)ethanol, and benzo[a]pyrene.
Arsenic compounds: Cigarette smoking has been shown to increase the occurrence of lung cancer in people with high levels of
arsenic in the drinking water Co-exposure to ethanol and arsenic may exacerbate the toxic effects of arsenic
Additional Information:
Medical Conditions Generally Aggravated by Exposure:
Overexposure to sulfuric acid mist may cause lung damage and aggravate pulmonary conditions. Contact of electrolyte (water & sulfuric
acid solution) with skin may aggravate skin diseases such as eczema and contact dermatitis. Contact of electrolyte (water & sulfuric acid
solution) with eyes may damage cornea and/or cause blindness. Lead and its compounds can aggravate some forms of kidney, liver, and