2-chlorotoluene

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Principles of method if other than guideline:

no data

GLP compliance:

not specified

Type of method:

other: no data

Key result

Melting / freezing pt.:

-35.9 °C

Atm. press.:

1 013 hPa

Decomposition:

no

Remarks on result:

other: +/- 0.7

According to Lide (2013; emphasis added), "The values in the table for the normal boiling point and the melting point that are accompanied with uncertainties (in parentheses) have been critically evaluated using the NIST ThermoData Engine (TDE, Ref. 20), designed to implement the dynamic data evaluation concept (Refs. 21-24). This concept requires large electronic databases capable of storing essentially all relevant experimental data known to date with detailed descriptions of metadata and uncertainties. The combination of these electronic databases with expert-system software, designed to automatically generate recommended property values based on available experimental and predicted data, leads to the ability to produce critically evaluated data dynamically or “to order.” The uncertainties listed are combined expanded uncertainties (level of confidence, approximately 95 %) representing the most comprehensive measure of the overall data reliability (Refs. 25-28)."
Accordingly, the value must be regarded as very reliable.

Conclusions:

The melting point of 2-chlorotoluene is -35.9 °C (+/- 0.7; Lide 2013)

Executive summary:

The melting point of 2-chlorotoluene is reported in the CRC Handbook of Chemistry and Physics, 94th edition (Lide, 2013). Based on the background information given, the key value reported with a confidence level of approximately 95% is based on a wealth of information comprehensively evaluated to allow for specification of uncertainty limits. Accordingly, the value must be regarded as very reliable.
Melting point for 2-chlorotoluene: -35.9 °C (+/- 0.7; Lide 2013).

Description of key information

The melting point of 2-chlorotoluene is -35.9 °C (+/- 0.7; Lide 2013)

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-35.9 °C

Additional information

The melting point of 2-chlorotoluene is reported in the CRC Handbook of Chemistry and Physics 94th edition (Lide, 2013). Based on the background information given, the key value reported with a confidence level of approximately 95% is based on a wealth of information comprehensively evaluated to allow for specification of uncertainty limits. Accordingly, the value must be regarded as very reliable.
Melting point for 2-chlorotoluene: -35.9 °C (+/- 0.7; Lide 2013).