Reaction mass of sulphuric acid, hydrogen peroxide and peroxomonosulphuric acid

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling 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 103 (Boiling point/boiling 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:

differential scanning calorimetry

Atm. press.:

102.8 kPa

Decomposition:

yes

Decomp. temp.:

68.5 °C

- The melting temperature of the indium reference standard was determined to be 157.01 °C and within the defined tolerance (156.6 ± 0.5 °C). The DSC was therefore considered acceptable for use.

- Thermograms and thermographic data for determinations 1 and 2 are shown in Figures 3.3 and 3.4 (attached).

Conclusions:

The test material was determined to decompose from approximately 68.5 ± 0.5 (342 ± 0.5 K) at 102.8 kPa. As the test material decomposed, no value for boiling temperature could be determined.

Description of key information

Decomposition took place from approximately 68.5 ± 0.5 °C

Additional information

Decomposition temperature equates to 342 ± 0.5 K