[No public or meaningful name is available]

Flammability

Administrative data

Endpoint:

flammable liquids: obsolete as covered by section 'Flash point'

Data waiving:

study technically not feasible

Justification for data waiving:

the study does not need to be conducted because the substance is a liquid

Cross-reference

Cross-reference 1

Reason / purpose for cross-reference:

data waiving: supporting information

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

11 Nov 2019 - 05 Feb 2020

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

GLP compliance:

no

Other quality assurance:

ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Type of method:

differential scanning calorimetry

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Lot/batch number of test material: 5674800
- Purity.: 91.8% (sum of two main components)
- Expiration date: 22 Jul 2020

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Store in well-ventilated place .Keep container tightly closed. Store locked up.

Key result

Atm. press.:

985 hPa

Decomposition:

yes

Decomp. temp.:

ca. 150 °C

The test item showed an exothermic effect starting at a temperature of ca. 150 °C. The exothermic effect was directly followed by an endothermic effect starting at a temperature of ca. 220 °C. A second exothermic effect was observed starting at a temperature of ca. 370 °C. This exothermic effect was also directly followed by an endothermic effect starting at a temperature of ca. 400 °C. These results were compared to direct observations. Starting at a temperature of ca. 187 °C a formation of crystals or solid matter around the boiling capillary could be observed. This effect can be assigned to a thermal polyimersation of 1,10 decanediol dimethacrylate. The solid matter disappeared at a temperature of ca. 228 °C. Starting at a temperature of 270 °C a formation of crystals or solid matter could be observed again. At a temperature of 278 °C the test item foamed up and changed its colour from yellow to brownish. The colour of the test item turned to amber at a temperature of ca. 300 °C and only a small amount is left on the bottom of the capillary. At a temperature of 325 °C the residue turned to black. Up to a temperature of 400 °C the residue partially turned white to greyish. After the test a black residue remained at the bottom of the capillary.

Due to the fact that the test item showed an exothermic effect before its second endothermic effect, which can be assigned to its thermal polymerisation, it can be stated the test item has no boiling point up to its thermal polymerisation starting at a temperature of ca. 150 °C.

Trial	Exotherm (J/g)	Peak (°C)
1	61.36	175.75
1	10.93	385.58
2	68.71	179.15
2	24.81	389.05

Conclusions:

MDP was determined to decompose at ca. 150°C before boiling at 985 hPa (OECD 103).

Executive summary:

The decomposition temperature was determined by the differential scanning calorimetry (DSC). During the heating processes an exothermic effect was measured prior to the second endothermic effect, where thermal polymerisation was observed. Due to this effect it can be stated the test item has no boiling point up to its thermal polymerisation starting at a temperature of approximately 150 °C. The study was conducted in accordance with OECD 103 method under the scope of the the laboratory's ISO/IEC 17025 certification. Therefore, the study is considered reliable without restrictions.

Cross-reference 2

Reason / purpose for cross-reference:

data waiving: supporting information

Reference

Endpoint:

flash point of flammable liquids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

17 Apr 2020

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.9 (Flash-Point)

Qualifier:

according to guideline

Guideline:

ISO 3679 (Determination of flash point - Rapid equilibrium closed cup method)

GLP compliance:

no

Other quality assurance:

ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Type of method:

closed cup

Flash point apparatus:

other: Rapid tester

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Batch number of test material: 5674800
- Purity: 91.8% (sum of two main components)
- Expiration date: 22 Jul 2020

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Store in well-ventilated place. Keep container tightly closed. Store locked up.

Key result

Flash point:

183.5 °C

Atm. press.:

1 013 hPa

Remarks on result:

other: corrected to standard pressure

Amount of test item (g)	Temperature (°C)	Ignition (+/-)	Air pressure (hPa)
3.99	174.0	-	988.6
4.02	175.0	-	988.6
4.33	176.0	-	988.6
3.99	177.0	-	988.6
4.02	178.0	-	988.6
4.03	179.0	-	988.6
4.13	180.0	-	988.6
4.10	185.0	+	988.6
4.17	184.0	+	988.6
4.11	183.0	-	993.0
4.03	183.0	-	933.0
4.01	183.5	-	990.8
4.21	183.5	+	990.8
4.20	183.0	+	990.8
4.05	182.5	-	990.8
4.42	182.5	-	990.8
4.11	182.5	-	990.8

An ignition is indicated by + and no ignition by -

Conclusions:

The flash point for MDP was determined to be 183.5 °C at atmospheric standard pressure (EC A.9).

Executive summary:

The flash point of MDP was measured using a closed cup flash point apparatus. The study was tested starting at 174.0 °C, flame was applied at each 1 - 5 °C temperature rise, and then a second evolution of 0.5 °C between ignition points. Flash point was evaluated at an atmospheric pressure between 988.6 and 993.0 hPa and corrected to standard pressure. The study was conducted in accordance with regulation EC No. 440/2008 Method A.9. Flash Point and ISO guideline 3679. The study was conducted under the scope of the the laboratory's ISO/IEC 17025 certification. Therefore this study is considered reliable without restrictions.