Zircon, cadmium yellow

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:

test procedure in accordance with national standard methods with acceptable restrictions

Remarks:

Only one measurement was made during the DTA.

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

other: DIN 51004:1994 determination of melting temperatures of cristalline materials using Differential thermal analysis

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: DIN 51007:1994 General principles of differential thermal analysis

Deviations:

no

GLP compliance:

no

Type of method:

thermal analysis

Key result

Decomposition:

yes

Decomp. temp.:

ca. 949 °C

Remarks on result:

other: Onset 911°C

The sample shows a thermal event located around 949 °C (Onset 911 °C) which is supposed to correspond to CdS sublimation*.

*NASAR, A., SHAMSUDDIN, M. An investigation of the thermodynamic properties of cadmium sulphide, Thermochímica Acta 197 (1992) 373 - 380.

Conclusions:

The decomposition temperature of zircon, cadmium yellow is about 949 °C (onset 911 °C).

Description of key information

The decomposition temperature of Zirconium zircon with encapsulated cadmium sulphide is about 949 °C (onset 911 °C).