Sodium methanolate - ipcs inchem
Sodium methanolate - ipcs inchem
Sodium methanolate - ipcs inchem
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OECD SIDS<br />
SODIUM METHANOLATE<br />
3. ENVIRONMENTAL FATE AND PATHWAYS ID: 124-41-4<br />
DATE: 28.06.2006<br />
Air : % (Fugacity Model Level I)<br />
Water : % (Fugacity Model Level I)<br />
Soil : % (Fugacity Model Level I)<br />
Biota : % (Fugacity Model Level II/III)<br />
Soil : % (Fugacity Model Level II/III)<br />
Method : other: (calculation): PCKOCWIN<br />
Year : 2003<br />
Method : PC-KOC (c) Program, Version 1.66 Syracuse Research Corporation, Merril<br />
Lane, Syracuse, New York, 13210, U.S.A., 2000, GLP: no<br />
Result : The soil or sediment adsorption coefficient (Koc) of <strong>Sodium</strong> methoxide was<br />
calculated as Koc = 1.<br />
Reliability : (3) invalid<br />
Value uncertain, because of the ionic nature of the substance.<br />
06.12.2005 (20)<br />
Type : other<br />
Media :<br />
Air : % (Fugacity Model Level I)<br />
Water : % (Fugacity Model Level I)<br />
Soil : % (Fugacity Model Level I)<br />
Biota : % (Fugacity Model Level II/III)<br />
Soil : % (Fugacity Model Level II/III)<br />
Method :<br />
Year :<br />
Remark : Due to the rapid hydrolysis in water, yielding methanol and sodium<br />
hydroxide, the data for methanol are relevant.<br />
04.12.2005 (33) (35)<br />
3.3.2 DISTRIBUTION<br />
Media : air - biota - sediment(s) - soil - water<br />
Method : Calculation according Mackay, Level III<br />
Year : 2005<br />
Method : Mackay et al.: Chemosphere, 24, 695-717 (1992) and earlier publications.<br />
Remark : Level III Program, Mackay, D., 2002, Version 2.70, Trent University<br />
The distribution of sodium <strong>methanolate</strong> is of limited relevance for the<br />
assement of the environmental behaviour as due to the rapid hydrolysis in<br />
water, the relevant species subject to environmental distribution are the<br />
degradation products sodium hydroxide and methanol.<br />
Result : Scenario 1 Scenario 2 Scenario 3 100 % Release<br />
100 % Release 100 % Release<br />
into air into water into soil<br />
[%] [%] [%]<br />
Compartment<br />
Air 18.0 0 0<br />
Water 3.50 100 0<br />
Soil 78.5 0 100<br />
Sediment 0 0 0<br />
Test condition : The calculation was conducted with the following user entered parameters:<br />
Molar mass: 54.02 g/mol<br />
Ambient temperature: 25 °C<br />
Log Kow: -0.74<br />
Vapour pressure: 1.00E-05 Pa [20 °C]<br />
Melting point: 127 °C<br />
Half-life in air: 464 hours<br />
UNEP PUBLICATIONS 51
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