Page 238 - Handbook of Hazardous Chemical Properties

228 LACTIC ACID
L

LACTIC ACID
Chemical Designations - Synonyms: 2-Hydroxypropanoic acid; alpha-Hydroxypropionic acid; Milk
acid; Racemic acid; Chemical Fomla: CH,CHOHCOOH-H,O.
Observable Characteristics - Physical State (as shipped): Syrupy liquid; Color: Yellow to colorless:
Odor: None or weak acidic.
Physical and Chemical Properties - Physical State at 15 "c and I am. : Liquid; Molecular Weight:
90; Boiling Point at I am.: Not pertinent (decomposes); Freezing Point: Not pertinent; Critical
Temperature: Not pertinent; Critical Pressure: Not pertinent; Specijic Gravity: 1.20 at 20 "C (liquid);
Vapor (Gas) Specific Gravity: Not pertinent; Ratio of Specific Heats of Vapor (Gas): Not pertinent;
Latent Heat of Vaporization: Not pertinent; Heat of Combustion: -6,520, -3,620, -152; Heat of
Decomposition: Not pertinent.
Health Hazards Idormation -Recommended Personal Protective Equipment: Rubber gloves; goggles;
Self-contained breathing apparatus where high concentrations of mist are present; Symptoms Following
Exposure: Inhalation of mist causes coughing and irritation of mucous membranes. Ingestion, even of
diluted preparations, has a corrosive effect on the esophagus and stomach. Contact with more
concentrated solutions can cause severe burns of eyes or skin; General Treatment for Exposure:
INHALATION: move to fresh air. INGESTION: give large amount of water. EYES: flush with water
for 15 min. SKIN: flush with water; wash well with soap and water; Toxicity by Inhalation (Threshold
Limit Value): Data not available; Shofi-Term Inhalation Limits: Data not available; Toxicity by
Ingestion: Grade 2; oral LD,, = 1,810 mg/kg (guinea pig); Lure Toxicity: Data not available; Vapor
(Gas) Irritant Characteristics: Data not available; Liquid or Solid Im.tant Characteristics: Data not
available; Odor Threshold 4.0 x IO' ppm.
Fire Hazards - Flash Point : Not pertinent (not flammable); Flammable Limits in Air (%): Not
pertinent; Fire Extinguishing Agents: Water, foam, dry chemical, carbon dioxide; Fire Extinguishing
Agents Not To Be Used: Not pertinent; Special Hazards of Combustion Products: Not pertinent;
Behavior in Fire: Not pertinent; Ignition Temperature : Not pertinent; Electrical Hazard: Not pertinent;
Burning Rate: Not pertinent.
Chemical Reactivity - Reactivity with Water: No reaction; Reactivity with Common Materials: Slowly
corrodes most metals; Stability During Transport: Stable; Neutralizing Agents for Acia!s and Caustics:
Dilute with water, rinse with sodium bicarbonate or lime solution; Polymerization: Not pertinent;
Inhibitor of Polymerization: Not pertinent.

LATEX, LIQUID SYNTHETIC
Chemical Designations - Synonyms: Plastic latex; Synthetic rubber latex; Chemical Formula: Not
pertinent.
Observable Characteristics - Physical State (as shipped): Liquid; Color: Milky; Odor: Each type has
a characteristic odor.
Physical and Chemical Properties - Physical State at 15 'C and 1 am. : Liquid; Molecular Weight:
Not pertinent; Boiling Point at I atm. : Very high; Freezing Point: Not pertinent; Critical Temperature:
Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 1.057 at 25 "C (liquid); Vapor (GaF)
Specific Gravity: Not pertinent; Ratio of Specific Heats of Vapor (Gas): 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: Chemical goggles or
face shield; Symptoms Following Exposure: Irritation of eyes; General Treatment for Exposure: EYES:
flush with water for at least 15 minutes; Toxicity by Inhalation (Threshold Limit Value): Not pertinent;
Short-Term Inhalation Limits: Not pertinent; Toxicity by Ingestion: Data not available; Lute Toxicity:
Data not available; Vapor (Gas) Irritant Characteristics: None; Liquid or Solid Irritant Characteristics:
Contact with eyes can cause irritation; Odor 7kreshold Not pertinent.