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Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
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:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to guideline
Guideline:
other: as mentioned below
Principles of method if other than guideline:
The freezing point of 2-Naphthalenol, 1-[[2-methyl-4-[(2-methylphenyl)azo]phenyl]azo]-, ar-styrenated (CAS No. 85203-90-3) is determined using crushed ice + salt.
GLP compliance:
not specified
Type of method:
other: standered method
Specific details on test material used for the study:
- Name of test material (as cited in study report): 2-Naphthalenol, 1-[[2-methyl-4-[(2-methylphenyl) azo] phenyl] azo]-, ar-styrenated- IUPAC name: 2-Naphthalenol, 1-[[2-methyl-4-[(2-methylphenyl) azo] phenyl] azo]-, ar-styrenated- Molecular formula: C40H36N4O1 - Molecular wt. : 588.76 g/mole- smiles : Cc1ccccc1N=Nc2ccc(c(C)c2)N=Nc3c4ccc(C(C)c5ccccc5)cc4cc(C(C)c6ccccc6)c3O- Substance type: Organic- Physical state: red liquid
Key result
Melting / freezing pt.:
< 10.14 °C
Atm. press.:
974.5 hPa
Remarks on result:
other: No other data available
Conclusions:
The Freezing point of 2-Naphthalenol, 1-[[2-methyl-4-[(2-methylphenyl)azo]phenyl]azo]-, ar-styrenated (CAS No. 85203-90-3) was determined using crushed ice + salt. No freezing was observed up to -10.14 °C.
Executive summary:

The Freezing point determination of 2-Naphthalenol, 1-[[2-methyl-4-[(2-methylphenyl)azo]phenyl]azo]-, ar-styrenated (CAS No. 85203-90-3)

was done using crushed ice + salt. No freezing was observed up to -10.14°C. Hence, the freezing point was inferred to be less than -10.14°C at 974.5 hPa.

Description of key information

The Freezing point of 2-Naphthalenol, 1-[[2-methyl-4-[(2-methylphenyl)azo]phenyl]azo]-, ar-styrenated (CAS No. 85203-90-3) was determined using crushed ice + salt. No freezing was observed up to -10.14 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-10.14 °C

Additional information

The Freezing point determination of 2-Naphthalenol, 1-[[2-methyl-4-[(2-methylphenyl)azo]phenyl]azo]-, ar-styrenated (CAS No. 85203-90-3)

was done using crushed ice + salt. No freezing was observed up to -10.14°C. Hence, the freezing point was inferred to be less than -10.14°C at 974.5 hPa.