Page 328 - Handbook of Hazardous Chemical Properties

318 PHTHALIC ANHYDRIDE
123.89; Boiling Point at I atm.: 535.5, 279.7, 552.9; Freezing Point: 111.4, 44.1, 317.3; Critical
Temperature: Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 1.82 at 20 "C (solid);
Vapor (Gas) Specific Gravity: Not pertinent; Ratio of Specific Heats of Vizpor (Gas): Not pertinent;
Latent Heat of Vaporization: Not pertinent; Heat of Combustion: Not pertinent; Heat OfDecomposition:
Not pertinent.
Health Hazards Information - Recornmended Personal Protective Equip-: Heavy rubber gloves
and goggles or face shield; Symptoms Following Exposure: Solid or liquid causes severe burns of skin.
If ingested, causes MUS=, vomiting, jaundice, low blood pressure, depression, delirium, coma, death.
Symptoms after ingestion may be delayed for from a few hours to 3 days; General Treatment for
Exposure: INGESTION: if ingested, do NOT induce vomiting; call a doctor at once. SKIN OR EYE
CONTACT: immediately flush with plenty of water for at least 15 min.; keep skin area wet until
medical attention is obtained; Toxicity by Inhulation (Threshold Limit Value): 0.1 mg/m3; Short-Tern
Inhalation Limits: Data not available; Toxicity by Ingestion: Grade 4, LD, below 55 mg/kg; Late
Toxicity: Severe attack of liver and bones; Vwor (Gas) Irritm characteristics: Nonvolatile; Liquid
or Solid Irritm Characteristics: Severe skin irritant. Causes second- and third-degree burns on short
contact and is very injurious to the eyes; Odor Threshold Data not available.
Fire Hazards - Flash Point : Ignites spontaneously in air; Flmnmable Limits in Air (96): Not pertinent;
Fire Extinguishing Agents: Water; Fire Extinguishing Agents Not to be Used: Not pertinent; Special
Hazarak of Combustion Products: Fumes from burning phosphorus are highly irritating; Behavior in
Fire: Intense white smoke is formed; Ignition Temperame (deg. F): 86; Elecm'cal Hazard Not
pertinent; Burning Rate: Not pertinent.
Chemical Reactivity -Reactivity with Water: No reaction; Reactivity with Common Materid: Ignites
when exposed to air; Stability During Tramport: Stable; Neutralizing Agents for Aciak and Gzustics:
Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
PHTHALIC ANHYDRIDE
Chemical Designations - Synonym: 1,2-Benzenedicarboxylic acid anhydride; 1,3-Dioxophthalan;
PAN; Phthalandione; Phthalic acid anhydride; Chemical Fonnula: C,€&(CO),O.
Observable Characteristics - Physical State (as shipped): Solid or liquid; Color: Colorless or pale
yellow; Odor: Characteristic choking odor; choking, acrid.
Physical and Chemical Properties - Physical State at I5 "c and I atm.: Solid; Molecular Weight:
148.12; Boiling Point at I atm.: 544.3, 284.6, 557.8; Freezing Point: 268, 131, 404; Critical
Temperature: Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 1.20 at 135 "C (liquid)
1.53 at 20 "C (solid); Vapor (Gas) Specific Gravity: Not pertinent; Ratio of Specific Heats of Vapor
(Gas): 1.080; Latent Heat of Vaporization: 189,105,4.40; Heat ofcombustion: -9473, -526.3, -220.4;
Heat of Decomposition: Not pertinent.
Health Hazards Information -Recommended Personal Protective Equipment: Coveralls andor rubber
apron; rubber shoes or boots; chemical goggles and/or face shield; Bureau of Mine organic vapor
respiratory (Type AB); gauntlet-type leather or rubber gloves; Symptom Following Exposure: Solid
irritates skin and eyes, causing coughing and sneezing. Liquid causes severe thermal burns; General
Treatment for Exposure: INHALATION: gargle with water and use a sedative cough mixture.
INGESTION: induce vomiting and give water, milk, or vegetable oil. SKIN OR EYE CONTACT:
Flush with water for at least 15 min.; if burned by molten material, remove as much solid as possible,
soak off the remainder in cold water, and then treat the burn; Toxicity by Inhulation (Threshold Limit
Value): 2 ppm; Short-Term Inhulation Limits: 4 ppm for 5 min.; Toxicity by Ingestion: Grade 2, LD,
0.5-5 glkg (rat); Lute Toxicity: Data not available; Vapor (Gas) Irritant Characteristics: Vapor is
moderately irritating such that personnel will not usually tolerate moderate or high vapor
concentrations; Liquid or Solid Irritant Characteristics: Causes smarting of the skin and first-degree
burns on short exposure; may cause secondary burns on long exposure; Odor Threshold Data not
available.
Fire Hazards -Flash Point (deg. F): 329 OC; 305 CC; Flammuble Limits in Air (96): 1.7 - 10.5; Fire
Extinguishing Agents: Water fog, dry chemical, carbon dioxide, or foam; Fire Extinguishing Agents