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Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
no guideline followed
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Deviations:
yes
Remarks:
Due to the nature of the sample, boiling point was determined by thermogravimetric analysis (TGA), which is a deviation from OECD Guidelines for The Testing of Chemicals, 103, July 27 1995.
Principles of method if other than guideline:
Sample is placed in a DSC hermetic pan with a laser drilled pinhole in the lid. When the sample starts to boil, the vapor pressure in the pan increases causing a weight loss through the
pinhole in the lid. The onset of the derivative of this weight loss is taken to be the boiling point of the sample.
The boiling point was measured using a TA Instruments 2950 TGA and hermetic pin-hole DSC pans. Approximately 4 mg samples were analyzed. The sample was heated from room temperature to 500°C at 5°C/min. Two replicate trials were performed.
GLP compliance:
yes (incl. certificate)
Type of method:
other: Thermogravimetric Analysis
Specific details on test material used for the study:
LOT# 3261
Boiling pt.:
166 °C
Atm. press.:
101.3 kPa
Decomposition:
no

As seen in attached plot (overlay plot of 2 replicates) the first boiling point of the sample is 166°C. There are two boiling peaks above this

temperature; however the sample was decomposing while boiling at the higher temperatures. To be conservative the lowest boiling component is reported as the boiling point of the sample.

Conclusions:
Boiling point of 2-Hydroxyethyliminodi(acetic acid) was measured using Thermogravimetric Analysis (TGA). The boiling point of the test material was determined to be 166 C.
Executive summary:

Boiling point of 2-Hydroxyethyliminodi(acetic acid) was measured using Thermogravimetric Analysis (TGA). The boiling point of the test material was determined to be 166 C.

Description of key information

Boiling point of 2-Hydroxyethyliminodi(acetic acid) was measured using Thermogravimetric Analysis (TGA). The boiling point of the test material was determined to be 166 C.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
166 °C

Additional information