Yttrium

Melting point / freezing point

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

weight of evidence

Study period:

no data

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Principles of method if other than guideline:

Data were obtained from the peer reviewed CRC handbook. No information on methodology given.

GLP compliance:

no

Type of method:

other: no data

Melting / freezing pt.:

1 522 °C

Atm. press.:

101.325 kPa

Conclusions:

According to the peer reviewed CRC handbook, yttrium metal has a melting point of 1522°C.

Reference 2

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

weight of evidence

Study period:

no data

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Principles of method if other than guideline:

Data were obtained from this peer reviewed handbook. No information on methodology given.

GLP compliance:

no

Type of method:

other: no data

Key result

Melting / freezing pt.:

1 526 °C

Atm. press.:

101.325 kPa

Conclusions:

According to this peer reviewed handbook, yttrium metal has a melting point of 1526°C.

Description of key information

According to the peer reviewed CRC handbook of Chemistry and Physics, yttrium metal has a melting point of 1522°C (Haynes, 2016, Klimisch score 2). The melting point of yttrium metal reported in the handbook of inorganic chemicals (Patnaik, 2003, Klimisch score 2) is 1526°C.

Since these two results are used in a weight of evidence approach, the melting point is reported as the calculated average of the two values, which equals 1524°C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

1 524 °C