Page 276 - Handbook of Hazardous Chemical Properties

266 METHYL PHOSPHONOTHIOIC DICHLORIDE (AMIYDROUS)
Extinguishing Agents: Water; Fire Extinguishing Agents Not To Be Used: Not pertinent; Special
Hazarh of Combustion Products: Toxic gases are produced in fires; Behavior in Fire: Drums may
rupture violently; Ignition Temperature : Data not available; Electrical Hazard: Not pertinent; Burning
Rate: Data not available.
Chemical Reactivity - Reactivity with Water: Half decomposed in 8 days at 40" C; Reactivity with
Common Materials: Is absorbed in wood. etc., which must be replaced to eliminate poison hazard;
Stability During Transport: Decomposes above 50 "C with possible explosive force; Neutralizing Agents
for Acids and CauSrics: Apply caustic or soda ash slurry until yellow stains disappear; Polymerization:
Not pertinent; Inhibitor of Polymerization: Not pertinent.

METHYL PHOSPHONOTHIOIC DICHLORIDE (ANHYDROUS)
Chemical Designations - Synonyms: MPTD; Chemical Formula: CH,PSC&.
Observable Characteristics - Physical State (as shipped): Liquid; Color: Clear; Odor: Acrid.
Physical and Chemical Properties - Physical Stale at 15 "c and 1 atm. : Liquid; Molecular Weight:
149; Boiling Point at 1 atm.: Data not available; Freezing Point: -14.1, -25.6, 247.6; Critical
Temperature: Not pertinent; Critical Pressure: Not pertinent; Speczfic Gravity: 1.42 at 20 "C (liquid);
Vapor (Gas) Specific Gravity: Not pertinent; Ratio of Specific Heats of Vapor (Gas): Not pertinent;
Lutent Heat of Vaporim'on: (est.) 110, 60, 2.5; Heat of Combustion: Data not available; Heat of
Decomposition: Not pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: Rubber or neoprene
gloves; respiratory protection; goggles; Symptoms Following Exposure: Inhalation causes irritation of
nose and throat; effects are quite similar to those of phosgene. Ingestion causes irritation of mouth and
stomach. Delayed, painful eye irritation may occur from exposure to vapor; liquid causes severe
irritation. Contact with skin causes irritation and burns; General Treatmenl for Exposure: Get medical
attention after all exposures to this compound. INHALATION: remove victim to fresh air; alert
physician to delayed effects similar to those of phosgene. INGESTION: give large amount of water and
induce vomiting. EYES: flush with water for at least 15 min. SKIN: flood with water; Toxicity by
Inhalation (Threshold Limit Value): Data not available; Short-Term Inhalation Limits: Data not
available; Toxicity by Ingestion: Data not available; Late Toxicity: Data not available; Vapor (Gas)
Irritant Characteristics: Data not available; Liquid or Solid Irritant Characteristics: Data not available;
Odor Zhreshold: Data not available.
Fire Hazards -Flash Point (deg. F): > 122 OC; Flammable Limits in Air (96): Data not available; Fire
Extinguishing Agents: Dry chemical or carbon dioxide; Fire Extinguishing Agents Not To Be Used:
Water or foam; Special Hazards of Combustion Products: Irritating hydrogen chloride, sulfur dioxide
and other fumes may be formed in fire; Behavior in Fire: Data not available; Ignition Temperature :
Data not available; Electrical Hazard: Data not available; Burning Rate: Data not available.
Chemical Reactivity - Reactivity wirh Water: Reacts with water to form hydrochloric acid andor
hydrogen chloride vapor. The reaction may be violent; Reactivity with Common Materials: Corrosive
to metals because of its high acidity; Stability Dunng Transport: Stable; Neutralizing Agents for Acids
and Caustics: Flush with water, rinse with dilute sodium bicarbonate or soda ash solution;
Polymerizm'on: Not pertinent; Inhibitor of Polymerizm'on: Not pertinent.

l-MET€rYLPYRROLIDONE
Chemical Designations - Synonyms: 1-Methyl-2-pyrrolidinone; N-Methylpyrrolidinone; -Methyl-
pyrrolidone; -Methyl-alpha-pyrrolidone; Chemical Fonnula: C,H$O.
Observable Characteristics -Physical State (us shipped) : Liquid; Color: Colorless; Odor: Amine-like.
Physical and Chemical Properties - Physical State at 15 "c and I abn. : Liquid; Molecular Weight:
99; Boiling Point at I atm.: 396, 202, 475; Freezing Point: 1, -17, 256; Critical Temperature: Not
pertinent; Critical Pressure: Not pertinent; Specific Gravity: 1.03 at 25 "C (liquid); Vapor ((3s)
Specific Gravity: 3.4; Rario of Specipc Heats of Vapor (Gas): Not pertinent; Latent Heat of
Vaporization: Data not available; Heat of Combustion: -13,000, -7,220, -302; Heat of Decomposition:
Not pertinent.