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Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

Appearance/physical state/colour

The substance 1,3-isobenzofurandione, reaction products with methylquinoline and quinolone is an organic solid present in the form of yellow powder.

 

Melting point/freezing point

The melting point determination of Test item1,3-isobenzofurandione, reaction products with methylquinoline and quinoline(CAS No.8003-22-3) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The melting point was found to be 225°C-239.3°C at 977.4 hPa. No decomposition was observed at this temperature.

Boiling point

The boiling point determination of Test item 1,3-isobenzofurandione, reaction products with methylquinoline and quinoline (CAS No. 8003-22-3 ) was done as per the test guideline OECD 103. The method followed was according toSiwoloboff. The test item showed colour change from yellow to orange from 200°C to 220°C and turned into red coloured liquid at 240°C. Since, no string of bubbles observed till 250°C, mean boiling point was found to be greater than 250°C at 975.0 hPa

 

Density

The density of test item1,3-isobenzofurandione, reaction products with methylquinoline and quinoline(CAS No.8003-22-3) was determined following OECD guideline 109 according to pour density and tapped density method. The pour density and tapped density of the test item was found to be 0.2739g/cm3& 0.4 g/cm3respectively at 27.6°C and  979.05 hPa.

Particle size distribution (Granulometry)

The particle size distribution of test substance 1,3-isobenzofurandione, reaction products with methylquinoline and quinoline (CAS No. 8003-22-3) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was found to be in the range of 150 micron to 10 micron. The majority of the particles had size between 150 to 75 microns.

Vapour pressure

The Vapour pressure of the substance 1,3-isobenzofurandione, reaction products with methylquinoline and quinolone was found to be 2.73X10-9 mm Hg at 25 deg C (est) which is equivalent to 0.000000363 Pascal.

 

Partition Coefficient

The partition Coefficient n-octanol/water of1,3-isobenzofurandione, reaction products with methylquinoline and quinolone(CAS No. 8003-22-3)was determined by the Reverse Phase High Performance Liquid Chromatographic method according to OECD Guideline No. 117 for Testing of Chemicals. The reference substances were chosen according to structural similarity with the test substance. The reference substances were 4 Acetyl pyridine, Acetophenone, Benzophenone, Naphthalene, Biphenyl, N butyl benzene having Pow value ranging from 0.5 to4.6.

TheLog Powvalue was found to be3.550± 0.001at 25°C.

 

Water solubility

The water solubility determination of 1,3-isobenzofurandione, reaction products with methylquinoline and quinolone was done following OECD 105 and analytical determinations were done on HPLC. The mean water solubility was found to be 5.438±0.515 mg/l at 25°C. Thus the chemical is considered to be slightly soluble.

 

Solubility in Organic Solvents

The solubility range of the test item1,3-isobenzofurandione, reaction products with methylquinoline and quinolone (CAS 8003-22-3)in toluene and DMF was found to be 50-100 g/l whereas the solubility value in acetone, acetonitrile, methanol and ethanol was found to be less than 1 g/l, respectively at 28 °C.

 

Surface Tension

In accordance with column 2 of Annex VII of the REACH regulation, this end point was considered for waiver since surface activity is not a desired property of the chemical 1,3-isobenzofurandione, reaction products with methylquinoline and quinoline (Synonym D&C Yello No 11) considering its use as a coloring agent for food, cosmetics and plastics.

 

Flash point

The flash point determination of Test item 1,3-isobenzofurandione, reaction products with methylquinoline and quinoline (CAS No. 8003-22-3) was done. The method is closed cup method using Pensky-Martens Flash Point Apparatus. The flashpoint of the test item was found to be 195°C at 977.8 hPa.

 

Auto Flammability

The chemical 1,3-isobenzofurandione, reaction products with methylquinoline and quinoline is a solid and has a very low vapour pressure value of 2.73X10-9 mm Hg at 25 deg C (Est). In addition, it has a high flash point of 195oC. Thus, based on theses properties, the substance is not likely to be auto flammable.

 

Flammability

The chemical 1,3-isobenzofurandione, reaction products with methylquinoline and quinoline (Synonym (D&C Yellow No. 11) has a relatively high melting point of 242.1 oC and a very low vapor pressure of 0.000000363 Pascal at 25oC. In addition, it has a high flash point of 195oC. Thus, the chemical is unlikely to exhibit flammable property. Thus, the chemical is classified as "Non Flammable".

 

Explosiveness

This end point was considered for waiver since in accordance with column 2 of Annex VII of the REACH regulation, there are no chemical groups associated with explosive properties present in the molecule. Thus, 1,3-isobenzofurandione, reaction products with methylquinoline and quinoline is unlikely to exhibit explosive property..

 

Oxidising Properties

This end point was considered for waiver since in accordance with column 2 of Annex VII, this study does not need to be conducted as the substance is incapable of reacting exothermically with combustible materials, on the basis of the chemical structure. The chemical 1,3-isobenzofurandione, reaction products with methylquinoline and quinoline (Synonym D&C Yellow no. 11) contains oxygen (no halogen) but oxygen is not chemically bonded to nitrogen or oxygen. Thus, the chemical is not likely to exhibit oxidising properties.

pH

The pH determination of test item1,3-isobenzofurandione, reaction products with methylquinoline and quinoline.. (CAS No. 8003-22-3) was done as per the test guideline OECD 122. The pH of the test solution was determined with the help of pH meter. The pH was found to be 5.3 at 30.5°C. Thus, 1% solution can be considered to be acidic in nature.