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o-TOLUIDINE CAS N°: 95-53-4 - UNEP Chemicals

o-TOLUIDINE CAS N°: 95-53-4 - UNEP Chemicals

o-TOLUIDINE CAS N°: 95-53-4 - UNEP Chemicals

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OECD SIDS o-<strong>TOLUIDINE</strong><br />

2. PHYSICO-CHEMICAL DATA ID: <strong>95</strong>-<strong>53</strong>-4<br />

DATE: 07.01.2005<br />

2.1 MELTING POINT<br />

Value : -24.4 - -16.3 °C<br />

Sublimation :<br />

Method :<br />

Year : 1999<br />

GLP :<br />

Test substance : other TS: o-Toluidine, purity not specified<br />

Remark : A value of -24.4 °C for the alpha-form and a value of -16.3 °C for the betaform<br />

are given.<br />

Reliability : (2) valid with restrictions<br />

Data from handbook or collection of data<br />

Flag : Critical study for SIDS endpoint<br />

08.06.2004 (8)<br />

Value : -16.3 °C<br />

Sublimation :<br />

Method :<br />

Year : 19<strong>95</strong><br />

GLP :<br />

Test substance : other TS: o-Toluidine, purity not specified<br />

Reliability : (2) valid with restrictions<br />

Data from handbook or collection of data<br />

08.06.2004 (15)<br />

Value : -27.7 - -16.1 °C<br />

Sublimation :<br />

Method :<br />

Year : 2003<br />

GLP :<br />

Test substance : other TS: o-Toluidine, purity not specified<br />

Remark : Pressure is given in at (technical atmosphere, 1 at = 1.033 atm)<br />

Result : Beilstein reports several melting point values from several different<br />

sources:<br />

Melting point (°C)<br />

=>crystallisation form not specified<br />

-27.7<br />

-24.3<br />

-23.7<br />

=>alpha-form<br />

-24.4<br />

-23.68<br />

-21<br />

-24.5 at 980.7 hPa<br />

=>beta-form<br />

-16.4<br />

-16.25<br />

-15.5<br />

-16.1 at 980.7 hPa<br />

The atmospheric pressure was only detailed for two of the values. It is<br />

assumed that the other values were measured at standard atmospheric<br />

<strong>UNEP</strong> PUBLICATIONS 61

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