Accession Number:

ADA529408

Title:

Evaporation Rates of Chemical Warfare Agents Using 5 cm Wind Tunnels, IV. VX From Glass

Descriptive Note:

Final rept. Aug 2006-Sep 2009

Corporate Author:

SCIENCE APPLICATIONS INTERNATIONAL CORP GUNPOWDER MD

Personal Author(s):

• Brevett, Carol A.
• Giannaras, Christopher V.
• Pence, John J.
• Myers, Joseph P.
• Nickol, Robert G.
• King, Bruce E.
• Sumpter, Kenneth B.
• Hong, Seok H.
• Durst, H. D.

Report Date:

2010-06-01

Pagination or Media Count:

70.0

Abstract:

The evaporation of VX from glass was studied as a function of temperature, drop size, and air flow rate, using the same instrumentation as prior studies of sulfur mustard evaporation from glass, concrete, and sand. The evaporation rate increased with higher temperature and drop size wind speed was not a significant factor. An empirical equation was determined that would allow for the calculation of the evaporation rate given the atmospheric conditions. The data collected provide input for the validation of empirical and physics-based models on the evaporation of agent designed by other authors, and are input for the VLSTRACK model, which predicts agent vapor concentrations as a function of environmental conditions.

Descriptors:

• *GLASS
• *EVAPORATION
• *VX AGENT
• RATES
• WIND TUNNELS
• DROPS
• AIR FLOW
• TEMPERATURE
• PARTICLE SIZE

Subject Categories:

• Physical Chemistry
• Chemical, Biological and Radiological Warfare

Distribution Statement:

APPROVED FOR PUBLIC RELEASE