Page 375 - Handbook of Hazardous Chemical Properties

SULFURIC ACID, SPENT 365
pertinent; Burning Rate: Not pertinent.
Chemical Reactivity -Reactivity with Water: Reacts non-violently with water to form corrosive acid;
Reactivity with Common Materials: Corrodes aluminum; Stability During Transport: Stable;
Neutralizing Agents for Acids and Caustics: The mild acidity of water solution may be neutralized by
dilute caustic soda; Polymerization: Not pertinent; Inhibitor @ Polymerization: Not pertinent.

SULFURIC ACID
Chemical Designations - Synonyms: Battery acid; Chamber acid; Fertilizer acid; Oil of vitriol;
Chemical Formula: H,S04.
Observable Characteristics - Physical State (as shipped): Liquid; Color: Colorless (pure) to dark
brown; Odor: Odorless unless hot, then choking.
Physical and Chemical Properties - Physical State at 15 "c and I am. : Liquid; Molecular Weight:
98.08; Boiling Point at 1 am.: 644, 340, 613; Freezing Point: Not pertinent; Critical Temperature:
Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 1.84 at 20 "C (liquid); Vapor (Gas)
Specific Gravity: Not pertinent, Ratio of Specijic Heats of Vapor (Gas): Not pertinent; bent Heat of
Vaporization: Not pertinent; Heat of Combustion: Not pertinent; Heat @Decomposition: Not pertinent.
Health Hazards Information -Recommended Personal Protective Equipment: Safety shower; eyewash
fountain; safety goggles; face shield; approved respirator (self-contained or air-line); rubber safety
shoes; rubber apron; Symptom Following Exposure: Inhalation of vapor from hot, concentrated acid
may injure lungs. Swallowing may cause severe injury or death. Contact with skin or eyes causes
severe burns; General Treatment for Exposure: Call a doctor. INHALATION: observe victim for
delayed pulmonary reaction. INGESTION have victim drink water if possible; do NOT induce
vomiting. EYES AND SKIN: wash with large amounts of water for at least 15 min.; do not use oils
or ointments in eyes; treat skin burns; Toxicity by Inhalation (ThresholdLimit Value): 1 mg/m3; Short-
Ten Inhalation Limits: 10 mg/m3 for 5 min.; 5 mg/m3 for 10 min.; 2 mg/m3 for 30 min.; 1 mg/m3 for
60 min.; Toxicity by Ingestion: No effects except those secondary to tissue damage; Late Toxicity:
None; Vapor (Gas) Irritant Characteristics: Vapors from hot acid (77-98%) cause moderate irritation
of eyes and respiratory system. The effect is temporary; Liquid or Solid Irritant characteristics: 77-
98% acid causes severe second- and third-degree burns on short contact and is very injurious to the
eyes; Odor i%reshold: Greater than 1 mg/m3.
Fire Hazards - Flash Point : Not flammable; Flammable Limits in Air (46): Not flammable; Fire
Extinguishing Agents: Not pertinent; Fire Extinguishing Agents Not To Be Used: Water used on
adjacent fires should be carefully handled; Special Hazards of Combustion Products: Not pertinent;
Behavior in Fire: Not flammable; Ignition Temperature : Not flammable; Electrical Hazard: None;
Burning Rate: Not flammable.
Chemical Reactivity - Reactivity with Water: Reacts violently with the evolution of heat (exothermic
reaction). Significant agitation and spattering occurs when water is added to the chemical; Reactivity
with Common Materials: Sulfuric acid is extremely hazardous in contact with many materials,
particularly metals and combustibles. Dilute acid reacts with most metals, releasing hydrogen which
can form explosive mixtures with air in confined spaces; Stability During Transport: Stable;
Neutralizing Agents for Acids and Caustics: Dilute with large amounts of water, then neutralize with
lime, limestone, or soda ash; Polymerization: Not flammable; Inhibitor of Polymerization: Not
flammable.
SULFURIC ACID, SPENT
Chemical Designations - Synonym: No common synonyms; Chemical Formula: HzS04-Hz0.
Observable Characteristics - Physical State (as shipped): Liquid; Color: Colorless to dark brown;
Odor: Odorless.
Physical and Chemical Properties - Physical State at 15 "c and I atm. : Liquid; Molecular Weight:
Not pertinent; Boiling Point at I am.: 212, 100, 373; Freezing Point: Not pertinent; Critical
Tempemure: Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 1.39 at 20 "C (liquid);
Vapor (Gar) Specific Gravity: Not pertinent; Ratio of Specific Heats of Vapor (Gas): Not pertinent;