Chromium tris(dihydrogen phosphate)

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:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Justification for type of information:

Reliable company data from manufacturer

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Principles of method if other than guideline:

Dried material was heated in oven to 1000 C and direct observations made

GLP compliance:

no

Type of method:

other: Use of furnace and direct observation

Specific details on test material used for the study:

Batch number of test material: B-05-3234

Key result

Melting / freezing pt.:

> 1 000 °C

Atm. press.:

ca. 1 atm

Decomposition:

no

Sublimation:

no

There was no apparent discolouration or any sign of decomposition.

Conclusions:

The dried solid failed to melt at up to 1000 C
There was no apparent sign of decomposition

Description of key information

The substance is manufactured in water but can be dried to form a powder.

Removal of water may change the relative proportions of hydroxyl and phosphate groups, but adding water to the dried material appeared to reverse any such changes.

For the CSA, the material is considered liquid

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

0 °C

Additional information

Figure of 0 C used for CSA based on aqueous liquid

Solid was heated to 1000 C with no sign of melting or decomposition