Lewisite

CAS RN: 541-25-3

WMD Response Guidelines

title-here
Lewisite
Guide 18
SIGNS AND SYMPTOMS
  • Immediate Eye and Skin Pain
  • Loss of Sight
  • Reddening of Skin
  • Irritation of Mucous Membranes
  • Nausea
  • Vomiting
  • Hoarseness
  • Fever
  • Apathy
  • Depression
  • Odor of Garlic or Geraniums
CHARACTERISTICS
  • Boiling Point: 374oF
  • Vapor Density (Air=1): 7.1
  • Specific Gravity (H2O=1): 1.88 @ 25oC
INDICATORS
  • Dead Animals
  • Lack of Insect Life
  • Mass Casualties
  • Definite Pattern of Casualties
  • Casualty Patterns Differentiated by Indoor/Outdoor Location
  • Unusual Liquid Droplets
  • Areas That Look Different in Appearance
  • Unexplained Odors
  • Low Lying Clouds
  • Unusual Metal Debris
ROUTES OF EXPOSURE
  • Inhalation
  • Absorption
  • Ingestion
EMERGENCY RESPONSE
  • Approach from Upwind, Uphill, or Upstream
  • Isolate Immediate Area in all directions for a SMALL INCIDENT 700 feet or LARGE INCIDENT 2000 feet (SMALL = < 55 Gallons, LARGE = > 55 Gallons)
  • Keep Unauthorized Persons Away
  • Consider Immediate Downwind Evacuation For a SMALL INCIDENT DAY of 1.2 Miles or 5.5 Miles NIGHT, or LARGE INCIDENT DAY of 4.6 Miles or NIGHT of 7 Miles
  • Consider Immediate All Direction Evacuation Distance of 2640 feet during the day
  • Stay Upwind
  • Make Notifications, Decon With Water, Obtain Immediate Medical Treatment
TYPE OF HARM
  • Chemical
  • Possible Thermal
  • Possible Asphyxiation
  • Possible Mechanical
PERSONAL PROTECTION
  • Time: Keep Exposure and Product Contact to Minimum
  • Distance: Stay 700 and 2000 feet away on Upwind Side
  • Shielding: Chemical Protective Clothing
Content reproduced for WISER with permission from the Louisiana State University and A&M College, National Center for Biomedical Research and Training, Academy of Counter-Terrorist Education. WMD Response Guidebook ©. Further reproduction prohibited.
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