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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Flammability

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Administrative data

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Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to guideline
Guideline:
other: UN test procedure "Recommendations on the Transport of Dangerous Goods-Manual of Tests and Criteria" (UN-MTC), Part III, sub-section 33.2.1.4.1, Test N.1 `Test method for readily combustible solids'.
Deviations:
no
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Key result
Test procedure:
burning rate test with wetted zone
Remarks on result:
other: The test substance melted when approached by the ignition flame. The substance did not burn up.
Remarks:
No further testing is required.

The substance in its delivery state was measured. The test substance melted when approached by the ignition flame. The substance did not burn up. No further testing was required.

Interpretation of results:
not classified based on GHS criteria
Conclusions:
The substance is classified as a not readily combustible solid. As a conclusion the substance is a non flammable solid.
Executive summary:

The test was performed as stipulated in UN test procedure "Recommendations on the Transport of Dangerous Goods - Manual of Tests and Criteria" (UN-MTC), Part III, sub-section 33.2.1.4.1, Test N.1 `Test method for readily combustible solids". Estradiol in its delivery state melted when approached by the ignition flame. The substance did not burn up. Therefore Estradiol is classified as a not readily combustible solid when tested according to UN-MTC Procedure N.1. As a conclusion the substance is a non flammable solid.

Endpoint:
self-heating substances / mixtures
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to guideline
Guideline:
other: VDI 2263, Part 1 ‘Test Methods for the Determination of the Safety Characteristic of Dusts’
Deviations:
no
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Key result
Test procedure:
other: The sample in its delivery state and an inert reference substance are heated up to 380 °C at a rate of 0.5 K/min in an air flow of about 20 L/h.
Max. temp. reached:
380
Result:
negative outcome (no effect observed)
Remarks:
The wire mesh basket was empty after the measurement.
Remarks on result:
other: No exothermic effects were determined up to the point at which the test substance melted.
Interpretation of results:
not classified based on GHS criteria
Conclusions:
The substance is classified as a not self-heating substance in the sense of CLP Annex I, 2.11.
Executive summary:

According to the German standard "VDI 2263", Part 1 ‘Test Methods for the Determination of the Safety Characteristic of Dusts’ Estradiol is not a self-heating substance in the sense of CLP Annex I, 2.11. The determination according to UN-MTC Procedure N.4 (Bowes-Cameron-Cage-Test) is not necessary.

Description of key information

a.) Flammability: Estradiol is a no flammable solid according to UN-MTC Procedure N.1.

b.) Pyrophoric properties: Estradiol did not deliver indications of pyrophoric properties during the realization of other tests. The determination according to UN-MTC Procedure N.2 is not necessary.

c.) Contact with water: A review of the structure suggests that there are no chemical groups present that would imply pyrophoric properties or flammability on contact with water. A review of handling and use implies no pyrophoric properties or flammability on contact with water. Testing according to UN Procedure N.5 is not necessary.

d.) Self-heating substances: Estradiol is not a self-heating substance in the sense of CLP Annex I, 2.11.

Key value for chemical safety assessment

Flammability:
not classified

Additional information

Justification for classification or non-classification