Registration Dossier

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

Physicochemical Properties for HBPA (100-1000T phase-in)

IUCLID section

Study name

Test guideline

Endpoint

Result / Comments

4.1

Rikabinol HB

Physicochemical Properties 

 n/a

Appearance

White powder 

4.2

 Rikabinol HB

Physicochemical Properties

 EC Method A.1

OECD Method 102

Melting point

 Rikabinol HB was determined to melt over the range of approximately 50 to 160°C.

4.3

 Rikabinol HB

Physicochemical Properties

 EC Method A.2

OECD

Method 103

Boiling point

 The boiling temperature of Rikabinol HB was not determinable, as the test substance decomposed at temperatures above approximately 280°C without boiling.

4.4

  Rikabinol HB

Physicochemical Properties

 EC Method A.3

OECD Method 109

Relative density

The relative density of Rikabinol HB was found to be 1.04.

4.5

Certificate of granulometry

No guidelines, volumetric distribution undertaken by NJC.

Particle size

 ca. 10 mm3  3%

    ca. 30 mm3  11.8%

 ca. 50 mm3  19%

    ca. 70 mm3  11.4%

  ca. 90 mm3   5.2% 

4.6

Rikabinol HB

Physicochemical Properties

 EC Method A.4

OECD Method 104

Vapour pressure

 Rikabinol HB was found to have a vapour pressure of 9 x 10-4 Pa at 25°C.

4.7

 

Rikabinol HB

Physicochemical Properties

 

EC Method A.8

OECD Method 117 

Partition coefficient

 Log10 Pow = 2.3

4.8

Rikabinol HB

Physicochemical Properties

EC Method A.6

OECD Method 105 

Water solubility

Rikabinol HB was found to have a water solubility of 192 mg/l at 20°C. 

4.10

  

 Rikabinol HB

Physicochemical Properties

 EC Method A.5

OECD

Method 115

Surface tension

 The surface tension of a 90% saturated aqueous solution of Rikabinol HB was found to be 51.5 mN/m. As the result was less than 60 mN/m, the test substance was considered to be surface active.

4.11

 n/a

 n/a

Flash point

Flash point is a property relevant to liquids and low melting point solids and so is waived in accordance with Section 2 of annex XI of the REACH regulation. 

4.12

   Rikabinol HB

Physicochemical Properties

EC Method A.15 

Auto-flammability

Rikabinol HB was determined not to auto-ignite below 400°C. 

4.13

   Rikabinol HB

Physicochemical Properties

EC Method A.10 

Flammability

The test substance, Rikabinol HB, was found not to be highly flammable. 

4.14

n/a

n/a

Explosiveness

Waived. In accordance with column 2 of REACH annex VII the explosivity test does not have to be conducted as HBPA contains no chemical groups associated with explosivity

4.15

n/a

n/a

Oxidising properties

Waived. In accordance with column 2 of REACH Annex VII, the study does not need to be conducted because on the basis of its chemical structure, the substance is incapable of reacting exothermically with combustible materials.

4.17

n/a

n/a

Stability in organic solvents

Waived. In accordance with Column 2 adaptation statement of REACH Annex IX, information requirement section 7.15, this study does not need to be conducted since the stability in organic solvents is not considered critical

4.21

n/a

n/a

Dissociation constant

Waived. In accordance with section 1 of REACH Annex XI, the dissociation constant study does not need to be performed because the substance does not contain any ionic structure.

4.22

n/a

n/a

Viscosity

Waived. In accordance with section 2 of REACH Annex XI, the viscosity does not need to be performed as the substance is a solid.