SPECTRUM

Chemical Fact Sheet

Chemical Abstract Number (CAS #) 140578
CASRN 140-57-8
SynonymsAramite
Sulfurous acid, 2-chloroethyl-, 2-[4-(1,1-dimethylethyl) phenoxy]-1-methylethyl ester
Molecular FormulaC15H23CLO4S

Link to the National Library of Medicine's Hazardous Substances
Database for more details on this compound.

Use ANTIMICROBICIDE AGENT (FORMER USE) MITICIDE (FORMER USE)
Apparent Color COLORLESS LIQUID; Clear light-colored oil
Boiling Point 175 DEG C AT 0.1 MM HG
Melting Point -31.7 DEG C
Molecular Weight 334.87
Density 1.145 @ 20 deg C/20 deg C
Sensitivity Data Irritant to eyes & skin .
Environmental Impact Aramite can be released directly into the environment through its use as an acaricide (miticide); however, this use has apparently been discontinued. If released to soil, aramite is not expected to leach. If released to water, aramite may partition significantly from the water column to sediment and suspended material in water. The estimated BCF value of 2265 suggests a potential for significant bioconcentration in aquatic organisms. Insufficient data are available to predict the relative importance or occurrence of chemical or biological degradation processes in soil or water. If released to air, aramite is expected to exist primarily in the aerosol-phase where it can be physically removed by wet and dry deposition processes. Occupational exposure is possible through dermal contact and inhalation of dusts and sprays during application of aramite as an acaricide.
Environmental Fate TERRESTRIAL FATE: Based on an estimated Koc value of 15500(1,SRC), aramite is not expected to leach in soil. Insufficient data are available to predict the relative importance or occurrence of chemical or biological degradation processes in soil. AQUATIC FATE: Based on an estimated Koc value of 15500(1,SRC), aramite may partition significantly from the water column to sediment and suspended material in water. The estimated BCF value of 2265(1,SRC) suggests a potential for significant bioconcentration in aquatic organisms. Insufficient data are available to predict the relative importance or occurrence of chemical or biological degradation processes in water. Aquatic volatilization or direct photolysis do not appear to be important. ATMOSPHERIC FATE: Based on a reported vapor pressure of 0.1 mm Hg at 175 deg C , the vapor pressure of aramite can be estimated to be roughly 1X10-8 mm Hg at 25 deg C using the Clausius-Clapeyron relationship. This vapor pressure suggests that aramite will exist primarily in the particulate-phase in the ambient atmosphere(2,SRC) where physical removal can occur by dry deposition and/or by wet deposition such as rainfall.

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