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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Endpoint summary

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Administrative data

Description of key information

Appearance

On the basis of physical observation, the appearance of test chemical was observed to be an inorganic solid in the form of white to pale yellow granules

 

Melting point

Based on the available data from study report,the melting point determination of test chemical was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The test was conducted in replicates and it has been observed that the substance get decomposed instead of melting. Hence, the mean decomposition temperature was determined to be 261.8°C at 97890 Pa.

Boiling Point

The study does not need to be conducted because the substance is a solid which decomposes before boiling.

Density

On the basis of available data from handbooks and authoritative databases, the density of test chemical was determined to be 2.514 g/cm³ at a temperature of 20 to 25°C.

 

Particle size distribution

The particle size distribution of test chemical was determined by granulometric analysis with rotap sieve shaker. The study was conducted in accordance with OECD guideline 110 and according 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 determined to be more than 150 micron .

 

Vapour pressure

Based on the available data from handbooks and authoritative databases,the vapour pressure of test chemical was determined to be 133.32 Pa (1 mmHg) at 210.9°C.

 

Partition coefficient

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

 

Water solubility

Based on the available data from study report, the water solubility determination of test chemical was done as per the OECD guideline 105 (Water solubility) and OECD 101 by using spectrophotometric analytical method. The solubility of test chemical in water was determined to be 713786 mg/L at 25°C. On the basis of this value, test chemical was considered to be very soluble in water.

 

Surface tension

The study does not need to be conducted because surface activity is not a desired property of the material.

 

Flash point

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

 

Auto flammability

Test chemical did not catch fire on being exposed to air at room temperature of 27°C pressure of 962 hPa. This indicates that the test chemical is not auto-flammable.

 

Flammability

Test chemical 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 test chemical is not flammable.

 

Explosiveness

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

 

Oxidizing properties

Test chemical was observed to have oxidising property since 152.3 mg of KMnO4 was required for getting the end point of the redox titration for 100 g of test chemical.

 

pH

Based on the available data from study report,the pH of test chemical was determined. The study was performed in accordance with OECD Guideline 122 (Determination of pH, Acidity and Alkalinity). The mean pH of the 1% w/v test dispersion was determined with the help of digital pH meter. The mean pH was determined to be 4.63 at 25.2°C. Thus, test chemical is considered to be acidic in nature.

Additional information

Appearance

On the basis of physical observation, the appearance of test chemical was observed to be an inorganic solid in the form of white to pale yellow granules

In a supporting study from handbook, the appearance of test chemical was observed to be white tetragonal crystal.

Additional study from handbooks indicates the appearance of test chemical as colorless to white crystalline solid or granular powder.

In another study from handbooks, authoritative databases and secondary source, the appearance of test chemical was observed to be an odorless white tetragonal crystal or granular powder.

In an additional study from handbook, test chemical appears to be an odorless white solid at 15°C and 1 atm.

Supporting study from handbook and authoritative databases indicates the appearance of test chemical as colorless cubic crystal.

 

Melting point

Based on the available data from study report,the melting point determination of test chemical was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The test was conducted in replicates and it has been observed that the substance get decomposed instead of melting. Hence, the mean decomposition temperature was determined to be 261.8°C at 97890 Pa.

Boiling Point

The study does not need to be conducted because the substance is a solid which decomposes before boiling.

Density

On the basis of available data from handbooks and authoritative databases, the density of test chemical was determined to be 2.514 g/cm³ at a temperature of 20 to 25°C.

Additional study from handbooks, authoritative database and secondary source, indicates the density of test chemical as 2.56 g/cm3 at 20°C.

 

Particle size distribution

The particle size distribution of test chemical was determined by granulometric analysis with rotap sieve shaker. The study was conducted in accordance with OECD guideline 110 and according 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 determined to be more than 150 micron .

 

Vapour pressure

Based on the available data from handbooks and authoritative databases,the vapour pressure of test chemical was determined to be 133.32 Pa (1 mmHg) at 210.9°C.

 

Partition coefficient

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

 

Water solubility

Based on the available data from study report, the water solubility determination of test chemical was done as per the OECD guideline 105 (Water solubility) and OECD 101 by using spectrophotometric analytical method. The solubility of test chemical in water was determined to be 713786 mg/L at 25°C. On the basis of this value, test chemical was considered to be very soluble in water.

 

Surface tension

The study does not need to be conducted because surface activity is not a desired property of the material.

 

Flash point

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

 

Auto flammability

Test chemical did not catch fire on being exposed to air at room temperature of 27°C pressure of 962 hPa. This indicates that the test chemical is not auto-flammable.

 

Flammability

On the basis of available data,test chemical 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 test chemical is not flammable.

Supporting study from handbooks also indicates that the test chemical is not flammable.

 

Explosiveness

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

 

Oxidizing properties

Test chemical was observed to have oxidising property since 152.3 mg of KMnO4 was required for getting the end point of the redox titration for 100 g of test chemical.

 

pH

Based on the available data from study report,the pH of test chemical was determined. The study was performed in accordance with OECD Guideline 122 (Determination of pH, Acidity and Alkalinity). The mean pH of the 1% w/v test dispersion was determined with the help of digital pH meter. The mean pH was determined to be 4.63 at 25.2°C.

In a supporting study from handbooks and authoritative database,the pH of 14.49 g/l of test chemical solution was determined to be 4.6.

Additional study from authoritative database indicates the pH of 50 g/l of test chemical solution as ≥ 4.5 to ≤ 6.5 at 25°C.

On the basis of available information, test chemical was considered to be acidic in nature.