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Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Appearance / physical state / colour:

The appearance of 2-furoic acid was observed to be a white colored solid powder organic compound.

Melting point/ Freezing point:

The Mean melting temperature range of 2-furoic acid (CAS No. 88-14-2) was determined be 125.8-128.8°C at 970.0 hPa.

Boiling point:

The mean boiling point of 2-furoic acid (CAS No. 88-14-2) was 201.3°C at 969.5 hPa.

Density:

The mean pour density and tapped density of 2-furoic acid (CAS No. 88-14-2) was determined to be 0.6591 g/cm³ and 0.7730 g/cm³at 26.2°C and 969.8 hPa.

Particle size distribution (Granulometry):

The particle size distribution of test item 2-furoic acid (CAS No. 88-14-2) was determined to be in the range of 150 micron to 53 micron.

Vapour pressure:

The vapour pressure of 2-furoic acid at 25 °C was estimated as 13.732204 Pa (0.103 mmHg).

Partition coefficient:

The estimated logPOW of the 2-furoic acid (CAS No.  88-14-2) is 0.64.       

Water solubility:

The water solubility for the test item 2-furoic acid was determined to be 329640 mg/L at 25°C.

Surface tension:

Based on the prediction done by ACD labs, the surface tension for chemical 2-furoic acid was predicted to be 48.2 ± 3.0 dyne/cm.

Flash point:

The mean flash point of 2-furoic acid (CAS No. 88-14-2) was 139.3°C at 969.4 hPa.

Autoflammability:

2-furoic acid did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 2-furoic acid is not auto-flammable.

Flammability:

2-furoic acid does not indicate any ignition when the flame of bunsen burner having temperature of approximately 950°C is brought in contact with it. Thus it can be concluded that  2-furoic acid is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus  2-furoic acid was considered non-flammable for chemical safety assessment.

Explosiveness:

The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties.

Oxidising properties:

The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with oxidizing properties and hence the classification procedure does not need to be applied.

pH:

The pH of 1% w/v solution of the test item 2-furoic acid (CAS No88-14-2) was 2.04 at 26.4 °C.

Additional information

Appearance / physical state / colour:

Based on available data from obtained report, the appearance of 2-furoic acid was observed to be a white colored solid powder organic compound.

Melting point/ Freezing point:

The melting point determination of 2-furoic acid (CAS No. 88-14-2) 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 determined to be 125.8-

128.8°C at 970.0 hPa.

Other supporting studies from handbooks, authoritative databases and secondary sources, also supported the selected key study and exhibited the melting point of 2-furoic acid in the range of 133.5, 133 -134 °C, 132 °C and 129 -130 °C, closer to the selected key value.

Boiling point:

The boiling point determination of Test item 2-furoic acid (CAS No. 88-14-2) was done as per the test guideline OECD 103. The method followed was according to Siwoloboff. The test was conducted in replicates and mean boiling point was determined to be 201.3°C at 969.5 hPa.

Other supporting studies from handbook and authoritative database, also supported the selected key study and exhibited the boiling point of 2-furoic acid in the range of 231°C and 230 -232 °C, closer to the selected key value.

Density:

The density of test item 2-furoic acid (CAS No. 88-14-2) was determined following OECD Guideline 109 and according to theTest methods: Pour density and tapped density of powders” recommended in The International Pharmacopoeia, Fourth Edition, 2014 using bulk density

apparatus. The mean pour density and tapped density of test item was determined to be 0.6591 g/cm³ and 0.7730 g/cm³ at 26.2°C and 969.8 hPa.

Particle size distribution (Granulometry):

The particle size distribution of test item 2-furoic acid (CAS No. 88-14-2 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was found to be in the range of 150 micron to 53 micron.

Vapour pressure:

Based on available data from authoritative databases, the vapour pressure of 2-furoic acid at 25 °C was estimated as 13.732204 Pa (0.103 mmHg).

Partition coefficient:

The estimated logPOW of the 2-furoic acid (CAS No.  88-14-2) is 0.64.       

Water solubility:

The water solubility determination of test item 2-furoic acid (CAS No. 88-14-2) was done as per the OECD guideline 105 by spectrophotometric analytical method as per OECD 101. The solubility of (2-furoic acid of CAS No.88-14-2 )in water was determined to be 329640 mg/L at 25°C.

Other supporting data from handbook and authoritative databases, also determined the water solubility of 2-furoic acid as 37100 mg/L at 15 deg C.

Hence, based on the experimental values the substance 2-furoic acid was considered to very soluble in water.

Surface tension:

Based on the prediction done by ACD labs Software (v12.1.0.50375), the surface tension for chemical 2-furoic acid was predicted to be 48.2 ± 3.0 dyne/cm.

Flash point:

The flash point determination of 2-furoic acid (CAS No. 88-14-2)was done following closed cup method using Pensky-Martens flash point apparatus. The test was conducted in replicates and mean flash point was determined to be 139.3°C at 969.4 hPa.

Autoflammability:

2-furoic acid did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 2-furoic acid is not auto-flammable.

Flammability:

2-furoic acid does not indicate any ignition when the flame of bunsen burner having temperature of approximately 950°C is brought in contact with it. Thus it can be concluded that  2-furoic acid is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus  2-furoic acid was considered non-flammable for chemical safety assessment.

Explosiveness:

The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties.

Oxidising properties:

The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with oxidizing properties and hence the classification procedure does not need to be applied.

pH:

The pH determination of test item 2-furoic acid (CAS No. 88-14-2 ) was done as per the test guideline OECD 122. The mean pH of the test solution was determined with the help of digital pH meter. The mean pH of 1% w/v solution of the test item 2-furoic acid (CAS No88-14-2) was 2.04 at 26.4 °C.