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EC number: 285-332-6 | CAS number: 85068-73-1
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 05 November 2019
- 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:
- method to determine freezing temperature
- Key result
- Melting / freezing pt.:
- < -20 °C
- Remarks on result:
- other: Test performed at atmospheric pressure although not specific value reported. For both samples the temperature was decreased to the level below -20°C and the freezing point was not reached.
- Conclusions:
- The freezing point of Et-NENA has not been reached up to -20ºC.
- Executive summary:
A study to determine the freezing point of Et-NENA was conducted in accordance to OECD (102)/EU. A.1 guidelines by the method of crystallization tube in freezing mixture solid CO2/acetone, in GLP conditions. The liquid sample of Et-NENA was poured into a test tube. This tube was placed in an outer tube and set in a Dewar vessel containing freezing mixture. The test item was stirred and the temperature was recorded during cooling. Two measurements were carried out at atmospheric pressure. The freezing point of Et-NENA has not been reached up to the limit of -20°C, which defines a threshold of the freezing point study performance necessity.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Qualifier:
- according to guideline
- Guideline:
- other: National Military Standard of China, Explosive Test Method GJB 772A-97, 1997
- GLP compliance:
- not specified
- Key result
- Melting / freezing pt.:
- >= 2 - <= 4 °C
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The freezing point of the test item was determined to be between 2 and 4ºC.
- Executive summary:
The study to determine the freezing point of the test item was performed according to the GJB772A-1997 standard. The freezing point was determined to be between 2 and 4ºC.
- Endpoint:
- melting point/freezing point
- Type of information:
- other: review article
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
- Principles of method if other than guideline:
- Not specified.
- GLP compliance:
- not specified
- Key result
- Melting / freezing pt.:
- >= 1 - <= 5 °C
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The freezing point of the test item is between 1 and 5ºC.
- Executive summary:
The freezing point of the test item is between 1 and 5ºC.
Referenceopen allclose all
Table 1. Measurements of Et-NENA (Ethyl-2-nitratoethylnitramine) freezing point
Sample No. 1 |
Sample No. 2 |
||
Time[min] |
Sample temperature [oC] |
Time[min] |
Sample temperature [oC] |
0 |
-5,0 |
0 |
-5,0 |
1 |
-5,5 |
1 |
-5,4 |
2 |
-6,0 |
2 |
-5,7 |
3 |
-6,4 |
3 |
-6,2 |
4 |
-6,8 |
4 |
-6,8 |
5 |
-7,3 |
5 |
-7,4 |
6 |
-7,9 |
6 |
-7,9 |
7 |
-8,4 |
7 |
-8,3 |
8 |
-8,8 |
8 |
-8,6 |
9 |
-9,2 |
9 |
-8,9 |
10 |
-9,5 |
10 |
-9,4 |
11 |
-9,8 |
11 |
-10,1 |
12 |
-10,1 |
12 |
-10,7 |
13 |
-10,5 |
13 |
-11,1 |
14 |
-10,8 |
14 |
-11,6 |
15 |
-11,2 |
15 |
-12,0 |
16 |
-11,7 |
16 |
-12,4 |
17 |
-12,0 |
17 |
-12,8 |
18 |
-12,5 |
18 |
-13,1 |
19 |
-12,9 |
19 |
-13,4 |
20 |
-13,2 |
20 |
-13,7 |
21 |
-13,6 |
21 |
-14,0 |
22 |
-13,9 |
22 |
-14,3 |
23 |
-14,2 |
23 |
-14,7 |
24 |
-14,4 |
24 |
-15,2 |
25 |
-14,7 |
25 |
-15,5 |
26 |
-15,1 |
26 |
-16,0 |
27 |
-15,2 |
27 |
-16,3 |
28 |
-15,5 |
28 |
-16,5 |
29 |
-15,9 |
29 |
-16,8 |
30 |
-16,3 |
30 |
-16,9 |
31 |
-16,5 |
31 |
-17,3 |
32 |
-17,0 |
32 |
-17,8 |
33 |
-17,3 |
33 |
-18,3 |
34 |
-17,8 |
34 |
-18,8 |
35 |
-18,3 |
35 |
-19,2 |
36 |
-18,6 |
36 |
-19,5 |
37 |
-19,1 |
37 |
-20,0 |
38 |
-19,7 |
38 |
-20,5 |
39 |
-20,5 |
39 |
-20,8 |
40 |
-20,6 |
40 |
-21,2 |
41 |
-21,0 |
41 |
-21,8 |
Description of key information
Key study. Method according to OECD 102 / EU Method A.1, GLP study. The freezing point of Et-NENA has not been reached up to -20ºC.
Supporting study. Method according to the GJB772A-1997 standard. The freezing point of the test item was determined to be between 2 and 4ºC.
Supporting study. Secondary literature. The freezing point of the test item is between 1 and 5ºC.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -20 °C
Additional information
Key study: A study to determine the freezing point of Et-NENA was conducted in accordance to OECD (102)/EU. A.1 guidelines, in GLP conditions. The freezing point of Et-NENA was not reached up to -20°C. According to column 2 of REACH Annex VII, the study does not need to be conducted below a lower limit of – 20°C.
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