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Physical & Chemical properties

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Description of key information

Physical state:

A visual evaluation was conducted in order to evaluate the physical state of the substance at 20°C. The chemical is solid Light yellow in colour.

 

Melting point:

The melting point of the test material was determined in a study which was conducted in accordance with the 92/69/EEC, A1 (DSC method-ASTM E537-86). Under the test conditions, the melting point of the substance was determined to be > 360 °C.

 

Boiling point:

The study does not need to be conducted because the substance is a solid which melts above 300 °C.

 

Density:

The density of the substance was determined in a study which was conducted according to 92/69/EEC, A3 (Gas comparison: Pycnometer method). Under the test conditions, the relative density of the substance was determined to be 3.5 at 20 °C.

 

Particle size distribution:

Determination of particle size distribution of test chemical by sieve method. Test conducted in accordance with European Commission technical guidance document 'Particle Size Distribution, Fibre Length and Diameter Distribution' (June 1996). The mean proportion of particles was observed to be < 100μm 43.5 %.

 

Vapour pressure:

Determination of vapour pressure of test chemical was determined in accordance with 92/69/EEC, A4 (Vapour pressure balance method). The test substance was observed to have a vapour pressure of <0.000023 Pa at 25°C.

 

Partition coefficient:

The study does not need to be conducted as the substance is inorganic.

Water solubility:

Aim of this study was to determine the solubility of test chemical in water. Test conducted according to the flask method. The water solubility of test chemical is observed to be < 0.454 mg/l.      

 

Surface tension:

The study does not need to be conducted because water solubility is below 1 mg/l at 20 degree C.

 

Flash point:

The study does not need to be conducted as the substance is inorganic.

 

Auto flammability:

The auto-flammability of the substance was investigated in a study which was conducted in accordance with the 92/69/EEC, A16. Under the test conditions, the self ignition temperature of the substance was determined to be > 400 °C.

 

Flammability:

Study is conducted to determine how easily substance can burn or ignite, causing fire or combustion by brief contact with an ignition source. The substance failed to propagate combustion or ignite. Thus, chemical consider to be non-flammable.

 

Explosiveness:

The explosivity of the substance was investigated in a study which was conducted in accordance with the 92/69/EEC, A14 (Body responsible: SAFEPHARM LABORATORIES LIMITED DERBY, DER BYSHIRE DE1 2BT). Under the test conditions, the substance was considering to be non-explosive.

 

Oxidising properties:

The oxidising properties of the substance were investigated in a study which was conducted in accordance with the 92/69/EEC, A17. The test conditions the substance/cellulose mixture failed to propagate combustion over the full 200 mm of the test. The substance was therefore determined to be non-oxidising (non-organic peroxide).

 

Stability in organic solvents and identity of relevant degradation product:

The study does not need to be conducted as the substance is inorganic.

pH:

The pH determination of test chemical was done as per the test guideline OECD 122. The mean pH of the test dispersion was determined with the help of digital pH meter. The experimental pH value for 1% aqueous solution of test chemical was observed to be 11.55 at 25.5 °C.

 

Dissociation constant:

The study does not need to be conducted because the analytical method is not sensitive enough.

 

Viscosity:

The study does not need to be conducted because the substance is a solid.

Additional information

Physical state:

A visual evaluation was conducted in order to evaluate the physical state of the substance at 20°C. The chemical is solid Light yellow to off white powder.

 

Melting point:

The melting point of the test material was determined in a study which was conducted in accordance with the 92/69/EEC, A1 (DSC method-ASTM E537-86). Under the test conditions, the melting point of the substance was determined to be > 360 °C.

 

The melting point of the test material was determined in a study which was conducted in accordance with the 92/69/CEE, A1 (Capillary tube method with liquid bath). Under the test conditions, the melting point of the substance was determined to be > 367 °C.

The melting point determination of test chemical was done as per the test guideline OECD 102. The method followed was according to metal Block Capilary apparatus. The Mean melting temperature was determine to be >350 °C at 976.8 hPa.

 

Boiling point:

The study does not need to be conducted because the substance is a solid which melts above 300 °C.

 

Density:

The density of the substance was determined in a study which was conducted according to 92/69/EEC, A3 (Gas comparison: Pycnometer method). Under the test conditions, the relative density of the substance was determined to be 3.5 at 20 °C.

 

Particle size distribution:

Summarized result for the determination of particle size distribution of test chemical are as mention below:

Determination of particle size distribution of test chemical by sieve method. Test conducted in accordance with European Commission technical guidance document 'Particle Size Distribution, Fibre Length and Diameter Distribution' (June 1996). The mean proportion of particles was observed to be < 100μm 43.5 %.

The particle size distribution of test substance was determined by Granulometric analysis with Rotap sieve shaker. The test conducted in accordance with OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius) and also to Adapted from IS: 2720 (Part 4)–1985 (Reaffirmed 2006); “Indian Standard METHODS OF TEST FOR SOILS, PART 4 GRAIN SIZE ANALYSES.” The particle size distribution was determine to be in the range of 150 micron to 25 micron.

 

Vapour pressure:

Determination of vapour pressure of test chemical was determined in accordance with 92/69/EEC, A4 (Vapour pressure balance method). The test substance was observed to have a vapour pressure of <0.000023 Pa at 25°C.

 

Partition coefficient:

The study does not need to be conducted as the substance is inorganic.

Water solubility:

Aim of this study was to determine the solubility of test chemical in water. Test conducted according to the flask method. The water solubility of test chemical is observed to be < 0.454 mg/l.      

 

Surface tension:

The study does not need to be conducted because water solubility is below 1 mg/l at 20 degree C.

 

Flash point:

The study does not need to be conducted as the substance is inorganic.

 

Auto flammability:

The auto-flammability of the substance was investigated in a study which was conducted in accordance with the 92/69/EEC, A16. Under the test conditions, the self ignition temperature of the substance was determined to be > 400 °C.

 

Flammability:

Study is conducted to determine how easily substance can burn or ignite, causing fire or combustion by brief contact with an ignition source. The substance failed to propagate combustion or ignite. Thus, chemical consider to be non-flammable.

 

Explosiveness:

The explosivity of the substance was investigated in a study which was conducted in accordance with the 92/69/EEC, A14 (Body responsible: SAFEPHARM LABORATORIES LIMITED DERBY, DER BYSHIRE DE1 2BT). Under the test conditions, the substance was considering to be non-explosive.

 

Oxidising properties:

The oxidising properties of the substance were investigated in a study which was conducted in accordance with the 92/69/EEC, A17. The test conditions the substance/cellulose mixture failed to propagate combustion over the full 200 mm of the test. The substance was therefore determined to be non-oxidising (non-organic peroxide).

 

Stability in organic solvents and identity of relevant degradation product:

The study does not need to be conducted as the substance is inorganic.

pH:

The pH determination of test chemical was done as per the test guideline OECD 122. The mean pH of the test dispersion was determined with the help of digital pH meter. The experimental pH value for 1% aqueous solution of test chemical was observed to be 11.55 at 25.5 °C.

 

Dissociation constant:

The study does not need to be conducted because the analytical method is not sensitive enough.

 

Viscosity:

The study does not need to be conducted because the substance is a solid.