Page 320 - Handbook of Hazardous Chemical Properties

310 PERCHLORIC ACID

characteristics: Data not available; Liquid or Solid Irritant Characteristics: Data not available; Odor
22reshold: Data not available.
Fire Hazards - Flash Point (deg. F): 104 OC; FlammableLimits in Air (%): Data not available; Fire
Extinguishing Agents: Water; Fire Extinguishing Agents Not to be Used: Not pertinent; Special Hazarh
of Combustion Products: Not pertinent; Behavior in Fire: Vapors are very flammable and explosive.
Liquid will detonate if concentration rises above 56% because of evaporation of acetic acid; Ignition
Temperature (deg. F): 392; Electrical Hazard Not pertinent; Burning Rate: Data not available.
Chemical Reactivity - Reactivity with Water: No reaction; Reactivity with Common Materials: May
cause fire in contact with organic materials such as wood, cotton or straw. Corrosive to most metals
including aluminum; Stability During Transport: Stable if kept cool and out of contact with most
metals. At 30°C concentration decreases about 0.4% each month; Neutralizing Agents for Aciak and
Caustics: Flush with water; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
PERCHLORIC ACID
Chemical Designations - Synonyms: Dioxonium perchlorate solution; Perchloric acid solution;
Chemical Formula: HclO&O.
Observable Characteristics - Physical State (as shipped): Liquid; Color: Colorless; Odor: None.
Physical and Chemical hoperties - Physical State at 15 "y: and 1 atm. : Liquid; Moleculur Weight:
100.46 (solute only); Boiling Point at 1 am.: Not pertinent (decomposes); Freezing Point: -170, -1 12,
161; Critical Tempemre: Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 1.6 - 1.7
at 25 "C (liquid); Vapor (Gas) Specific Gravity: Not pertinent; Ratio of Specific Heats of Vapor (Gus):
Not pertinent; Latent Heat of Vaporization: Not pertinent; Heat of Combustion: Not pertinent; Heat of
Decomposition: Not pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: Rubber gloves, face
shield or vapor-tight chemical-type safety goggles; rubber apron; rubber boots or shoes; Symptoms
Following Exposure: Inhalation of vapors or mist causes burning sensation of nose and throat, and lung
irritation with coughing; prolonged or excessive exposure could cause vomiting and severe coughing.
Ingestion causes blistering and burns of mouth and stomach. Contact with eyes or skin causes blistering
and burns; General Treatment for Exposure: Get medical attention following all exposures to this
compound. INHALATION: move to fresh air; give oxygen if necessary. INGESTION: give large
amounts of water. EYES: flush with water for at least 15 min. SKIN: flush with water; Tan'city by
ZnhaIation (Threshold Limit Value) : Data not available; Short-Tenn Inhalation Limits: Data not
available; Toxicity by Ingestion: Data not available; Late Toxicity: Data not available; Vapor (Gas)
Irnant Characteristics: Data not available; Liquid or Solid Irritant Chamcteristics: Data not available;
Odor Threshold Data not available.
Fire Hazards - Flash Point : Not flammable , but may explode in fire; Flammable Limits in Air (9%):
Not flammable; Fire Extinguishing Agents: Water from protected area; Fire Extinguishing Agents Not
to be Used: Data not available; Special Hazards of Combwtion Products: Data not available; Behavior
in Fire: Above 160°C (320" F) will react with combustible material and increase intensity of fire.
Containers may explode;. Ignition Temperature: Not pertinent; Electrical Hazard Not pertinent;
Burning Rate: Not pertinent.
Chemical Reactivity - Reactivity with Water: No reaction; Reactivity with Common Materials: Contact
with most combustible materials may cause fires and explosions. Corrosive to most metals with
formation of flammable hydrogen gas, which may collect in enclosed spaces; Stability During
Transport: Unstable if heated; Neutralizing Agents for Acids and Caustics: Flush with water, rinse with
dilute sodium bicarbonate or soda ash solution; Polymerization: Not pertinent; Inhibitor of
Polymerization: Not pertinent.

PETROLATUM
Chemical Designations - Synonyms: Petrolatum jelly; Petroleum jelly; Vaseline; Yellow petrolatum;
Chemical Formula: Not applicable.
Observable Characteristics - Physical State (as shipped): Liquid; Color: Colorless, amber, green,