[No public or meaningful name is available]

Flash point

Administrative data

Endpoint:

flash point of flammable liquids

Data waiving:

study technically not feasible

Justification for data waiving:

the study does not need to be conducted because the flash point is only relevant to liquids and low melting point solids

Cross-reference

Cross-reference 1

Reason / purpose for cross-reference:

data waiving: supporting information

Reference

Endpoint:

appearance / physical state / colour

Type of information:

other: assessed based on test material information from another study report

Adequacy of study:

key study

Study period:

From February 15, 2002 to february 20, 2002

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Appearance based on observations from other testing endpoints conducted on this substance all at the same laboratory.

Reason / purpose for cross-reference:

reference to same study

Principles of method if other than guideline:

Appearance assessment based on the observations made during testing for other endpoints.

GLP compliance:

yes

Specific details on test material used for the study:

Purity: 98.2%
White, coarse grained substance

Physical state at 20°C and 1013 hPa:

solid

Substance type:

organic

White coarse grained substance.

Conclusions:

The purified form of the test substance appears as white coarse grained solid.

Executive summary:

The physical state and appearance of the test substance, C12 -14 TMAC, were visually observed during testing of other endpoint testing. The purified form of the test substance appears as white coarse grained solid (Schneider, 2002).

Cross-reference 2

Reason / purpose for cross-reference:

data waiving: supporting information

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From February 15, 2002 to february 20, 2002

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

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Remarks:

glass crucible (closed and open)

Specific details on test material used for the study:

Purity: 98.2%
White, coarse grained substance

Key result

Decomposition:

yes

Decomp. temp.:

ca. 188 °C

Remarks on result:

other: no melting or boiling point

Observations:

In the temperature range between approximately 55°C to 70°C, a partial change in the optical properties of the test substance was seen. From this temperature up to approx. 188°C, no melting was observed. Beginning at this temperature, the sample became soft and partially liquid. At the top margin of the sample, the test substance turned brown. These effects intensified until 230°C when a volume contraction of the sample was observed. Starting at this temperature, evolving of gas bubbles occured. Finally, at 235°C, the sample was divided in two fractions, one liquid and one solid. After cooling down the sample to room temperature, the melted phase remained liquid.

(No transitional period).

Conclusions:

Under the study conditions, the test substance had no melting or boiling point. It started to decompose at a mean-onset temperature of 189°C.

Executive summary:

A study was conducted to determine the melting point / freezing point of the test substance, C12-14 TMAC, according to OECD Guideline 102 and EU Method A.1. Two independent tests: 1. Visual observation and 2. DSC - glass crucible (closed and open) were conducted. In the temperature range from approximately 55°C to 70°C, a partial change in the optical properties of the test substance was seen. From this temperature up to approximately 188°C, no melting was observed. Beginning at this temperature, the sample became soft and partially liquid. At the top margin of the sample, the test substance became brown. These effects intensified until 230°C when a volume contraction of the sample was observed. Starting at this temperature, evolving of gas bubbles occured. Finally, at 235°C, the sample was divided in two fractions, one liquid and one solid. After cooling down the sample to room temperature, the melted phase remained liquid. Under the study conditions, the test substance had no melting or boiling point. It started to decompose at a mean-onset temperature of 189°C (Schneider, 2002).