Registration Dossier
Registration Dossier
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EC number: 220-605-5 | CAS number: 2834-84-6
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- GLP compliance:
- no
- Type of method:
- thermal analysis
Test material
- Reference substance name:
- Guanidinium phosphate (1:1)
- EC Number:
- 226-551-9
- EC Name:
- Guanidinium phosphate (1:1)
- Cas Number:
- 5423-22-3
- Molecular formula:
- CH5N3.H3O4P
- IUPAC Name:
- Guanidium phosphate (1:1)
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- 125.8 °C
- Decomposition:
- yes
- Remarks:
- the melting process is followed by decomposition of the substance
- Decomp. temp.:
- ca. 287.1 °C
- Remarks on result:
- other: following its melting at Tonset = 125.8 °C, the substance is decomposed starting with Tonset = 287.1 °C.
Any other information on results incl. tables
Preliminary TGA experiment:
From Tonset = 287.1 °C upwards the weight of the sample decreased significantly. At 560 °C, the sample weight had decreased by 59.34%, while at 900 °C an additional extra of 19.66%wt. was lost. The residue mass at 900 °C was 20.8%wt. from the initial sample mass.
DSC experiment:
The melting of the substance takes place at Tonset = 125.8 °C (Tpeak = 130 °C). The melting process is followed by thermal decomposition starting at Tonset = 287.1 °C.
Applicant's summary and conclusion
- Conclusions:
- The melting temperature of the substance was determined to be 125.8 °C by using differential scanning calorimetry (in accordance with EC A.1 and OECD 102 guidelines). The substance decomposes after the melting. Decomposition of the substance starts at Tonset = 287.1 °C.
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