Bis(4-hydroxy-N-methylanilinium) sulphate

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

07-10-2017 – 07-10-2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

Experimental test result performed using standard OECD test guidelines

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Principles of method if other than guideline:

The melting point determination of Test item Bis(4-hydroxy-N-methylanilinium) sulphate (CAS No. 55-55-0) was done as per the test guideline OECD 102 via capillary/metal block method.

GLP compliance:

not specified

Type of method:

other: no data

Specific details on test material used for the study:

- Name of test material: p-Methylaminophenol sulfate- IUPAC name: Bis(4-hydroxy-N-methylanilinium) sulphate- Molecular formula: C14H20N2O6S- Molecular weight: 344.386 g/mole- Smiles:CNc1ccc(cc1)O.CNc1ccc(cc1)O.OS(=O)(=O)O- Inchl: 1S/2C7H9NO.H2O4S/c2*1-8-6-2-4-7(9)5-3-6;1-5(2,3)4/h2*2-5,8-9H,1H3;(H2,1,2,3,4)- Substance type: Organic- Physical state: Solid crystalline (off white - white)

Key result

Melting / freezing pt.:

>= 271.6 - <= 275.1 °C

Decomposition:

no

Sublimation:

no

Remarks on result:

other: by capillary/metal block method.

TEST DESCRIPTION AND RESULT

 

Method Details		Observations	Remarks if, any
Guideline	OECD 102	-
Method	Capillary/metal block	-
Principle of method	The temperature at whicha solid becomes a liquid at standard atmospheric pressure	-
Grinding of Test item done		Not required
Atmospheric pressure	hPa	972.1hPa
Decomposition	Decomposition temperature(°C), if applicable	No
Sublimation	Sublimation temperature(°C), if applicable	No
Mean melting temperature range	°C	271.6-275.1°C

Conclusions:

The Mean melting temperature range of Bis(4-hydroxy-N-methylanilinium) sulphate (CAS No. 55-55-0) was found be 271.6-275.1°C at 972.1hPa.

Executive summary:

The melting point determination of Bis(4-hydroxy-N-methylanilinium) sulphate (CAS No. 55-55-0) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean melting temperature range was found to be 271.6-275.1°C at 972.1hPa.

Description of key information

The Mean melting temperature range of Bis(4-hydroxy-N-methylanilinium) sulphate (CAS No. 55-55-0) was found be 271.6 - 275.1°C at 972.1hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

271.6 °C

Additional information

The melting point determination of Bis(4-hydroxy-N-methylanilinium) sulphate (CAS No. 55-55-0) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean melting temperature range was found to be 271.6-275.1°C at 972.1hPa.

Other supporting studies from handbooks authoritative databases, also supported the selected key study and exhibited the melting point of Bis(4-hydroxy-N-methylanilinium) sulphate at 260 °C (decomp), 259 °C and 250-260 °C respectively.