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Diss Factsheets

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
Study period:
16-03-2017 – 16-03-2017
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 Benzene-1,4-diammonium sulphate (CAS No. 16245-77-5) was done as per the test guideline OECD 102 via Capillary/metal block method.
GLP compliance:
not specified
Type of method:
other: Capillary/metal block method
Specific details on test material used for the study:
- Name of test material : Benzene-1,4-diammonium sulphate- IUPAC name: Benzene-1,4-diammonium sulphate- Molecular formula: C6 H8 N2.H2 O4 S- Molecular weight: 206.221 g/mol- Smiles notation: S(=O)(=O)(O)O.c1(ccc(cc1)N)N - InChl : 1S/C6H8N2.H2O4S/c7-5-1-2-6(8)4-3-5;1-5(2,3)4/h1-4H,7-8H2;(H2,1,2,3,4)- Substance type: organic- Physical state: Solid powder (off white)- Purity: NM
Key result
Atm. press.:
977.3 hPa
Decomposition:
yes
Decomp. temp.:
>= 317.5 - <= 321.5 °C
Sublimation:
no
Remarks on result:
other: other details not available

TEST DESCRIPTION AND RESULT


Method Details

Observations

Remarks if, any

Guideline

OECD 102

-

 

Method

Capillary/metal block

-

Principle of method

The temperature at which a solid becomes a liquid at standard atmospheric pressure

-

Grinding of Test item done

 

Not required

Atmospheric pressure

hPa

977.3hPa

Decomposition

Decomposition temperature(°C), if applicable

YES

Sublimation

Sublimation temperature(°C), if applicable

No

Mean decomposition temperature

 

°C

317.5-321.5°C

Conclusions:
The mean decomposition temperature range of Benzene-1,4-diammonium sulphate (CAS No. 16245-77-5) was found be 317.5-321.5°C at 977.3hPa.
Executive summary:

The melting point determination of Benzene-1,4-diammonium sulphate (CAS No. 16245-77- 5) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean decomposition temperature range was found to be 317.5-321.5°C at 977.3 hPa.

Description of key information

The mean decomposition temperature range of Benzene-1,4-diammonium sulphate (CAS No. 16245-77-5) was found be 317.5-321.5°C at 977.3hPa.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
317.5 °C

Additional information

The melting point determination of Benzene-1,4-diammonium sulphate (CAS No. 16245-77- 5) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean decomposition temperature range was found to be 317.5-321.5°C at 977.3 hPa.