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Physical & Chemical properties

Boiling point

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Endpoint:
boiling point
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
weight of evidence
Justification for type of information:
As the target substance is hydrolytically unstable with hydrolysis half-life less than 30 minutes at 30°C, testing is not feasible. According to hydrolysis test results, the hydrolysis products have been identified to be 2,2',2''-Nitrilotriethanol (triethanolamine) and zirconium dioxide. The physical, toxicological and ecotoxicological properties of the organic parts have been well-investigated. Read-across approach from hydrolysis products are used for assess the target substance.
Reason / purpose for cross-reference:
read-across source
Key result
Boiling pt.:
ca. 335.4 °C
Atm. press.:
ca. 1 atm
Conclusions:
The boilng point of the target substance is 335.4°C read-across from its hydrolysis product.
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
Triethanolamine is the main hydrolysis prodcut of the target substance. Properties of the hydrolysis substance is used for read-across.
Guideline:
other: not specified.
GLP compliance:
not specified
Type of method:
other: not specified.
Key result
Boiling pt.:
ca. 335.4 °C
Atm. press.:
ca. 1 atm
Conclusions:
The boiling point of triethanolamine (2,2',2''-nitrilotriethanol) is 335.4°C according to literature.
Executive summary:

Read-across data from hydrolysis product.

Description of key information

Boiling point of triethanolamine is 138.0 °C according to literature.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
335.4 °C

Additional information

According to hydrolysis test results, the hydrolysis rate was estimated to be less than 30 minutes. The hydrolysis products had been identified to be 2,2',2''-Nitrilotriethanol

(triethanolamine) and titanium dioxide. The boiling point of triethanolamine was chosen for CSA.