Reaction mass of sulphuric acid, hydrogen peroxide and peroxomonosulphuric acid

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

Study period:

2013

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

Date of inspection 2012-07-10; Date of signature 2012-11-30

Type of method:

method to determine freezing temperature

Melting / freezing pt.:

< -20 °C

RESULTS

- Cooling data for determinations 1 and 2 are presented in Tables 3.1 and 3.2 (attached)

- Graphs of temperature (K) versus time (s) for determinations 1 and 2 are shown in Figures 3.1 and 3.2 (attached)

- The test material became slightly viscous during cooling.

Determination	Freezing Point
	°C	K
Test 1	< minus 20.0	< 253
Test 2	< minus 20.0	< 253
Mean value	< minus 20.0	< 253

Conclusions:

The freezing temperature of the test material was determined to be < minus 20.0 °C (253 K)

Description of key information

Freezing temperature < minus 20.0 °C (OECD 102)

Additional information

Freezing temperature equates to < 253 K