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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2008-09-15 to 2008-10-02
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
1995-07-27
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
EEC Directive 92/96, Annex V, Part A
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
capillary method
Key result
Melting / freezing pt.:
>= -16.9 - <= -16.1 °C
Atm. press.:
1 013.25 hPa
Decomposition:
no
Sublimation:
no
Melting / freezing pt.:
>= 256.3 - <= 257.1 K
Atm. press.:
1 013.25 hPa
Decomposition:
no
Sublimation:
no







































Melting point/range



°C (Start)



K (Start)



°C (End)



K (End)



First determination



-16.8



256.4



-16.0



257.2



Second determination



-17.0



256.2



-16.1



257.1



Mean



-16.9



256.3



-16.1



257.1



Standard Deviation



0.14



0.14



0.07



0.07


Conclusions:
The melting range of Sika Hardener LG was determined as -16.9 to -16.1 °C (256.3 to 257.1 K) at 1013.25 hPa.
Executive summary:

The melting point of the test item was determined according to OECD test guideline 102 dated 27 July 1995 and EU-Method A.1 dated 31 July 1992. Therefore, the capillary method was used. Under ambient conditions, the test item is liquid. The used aluminium block was cooled to -80 °C temperature, then the capillary tube containing the test item was inserted into the block. The block was left with insulation wrappings. For the increase of the temperature, a temperature gradient of < 1 K/min was maintained. The temperature was noted at which the first signs of melting of the test item could be observed. When the substance was completely melted, the temperature was noted again. The determination was performed in duplicate. In both determinations, a melting range was found. The melting range was determined as -16.9 to -16.1 °C (256.3 to 257.1 K) at 1013.25 hPa. These values are the means of two independent determinations.

Description of key information

Following EU method A.1, the melting range of Sika Hardener LG was determined to be -16.9 to -16.1 °C (256.3 to 257.1 K) at 1013.25 hPa.

Key value for chemical safety assessment

Additional information

The melting point of the test item was determined according to OECD test guideline 102 dated 27 July 1995 and EU-Method A.1 dated 31 July 1992. Therefore, the capillary method was used. Under ambient conditions, the test item is liquid. The used aluminium block was cooled to -80 °C temperature, then the capillary tube containing the test item was inserted into the block. The block was left with insulation wrappings. For the increase of the temperature, a temperature gradient of < 1 K/min was maintained. The temperature was noted at which the first signs of melting of the test item could be observed. When the substance was completely melted, the temperature was noted again. The determination was performed in duplicate. In both determinations, a melting range was found. The melting range was determined as -16.9 to -16.1 °C (256.3 to 257.1 K) at 1013.25 hPa. These values are the means of two independent determinations.