2-(5-halo-2-hydroxy-aryl)-3H-heteropolycycle-4-one

Density

Link to relevant study record(s)

Reference

Endpoint:

density, other

Remarks:

density

Type of information:

other: company data

Adequacy of study:

key study

Study period:

2018-12-18

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

, October 2012

GLP compliance:

no

Type of method:

pycnometer method

Type:

density

Density:

>= 1.502 - <= 1.507 g/cm³

Temp.:

20 °C

Remarks on result:

other: no temperature was stated, 20 °C were assumed.

Type:

relative density

Density:

1.5

Temp.:

20 °C

Remarks on result:

other: no temperature was stated, 20 °C were assumed.

1st measurement:

m_pyc                              = 30.7628 g

m_{pyc + test item}                  = 35.97597 g

m_{pyc + test item + n-heptane} = 67.6015 g

m_CD394                        = 5.214 g

m_heptane                      = 31.625 g

V_heptane                      = 46.2363 mL

Vtest item = 49.7064 mL- 46.2363 mL = 3.4701 mL

ρ_{test item}                          = 5.214 g / 3.4701 mL = 1.502 g/mL

 

2nd measurement:

m_pyc                               = 30.7629 g

m_{pyc + test item}                  = 35.5985 g

m_{pyc + test item + n-heptane} = 67.4023 g

m_{CD 394}                        = 4.8356 g

m_heptane                       = 31.8038 g

V_heptane                       = 46.4968 mL

V_{test item}                         = 49.7064 mL- 46.4968 mL = 3.2096 mL

ρ_{test item}                         = 4.8356 g / 3.2096 mL = 1.507 g/mL

relative density - calculation:

To calculate the relative density D₄²⁰at 20 °C, the measured density of the test itemρ_TIat 20 °C is divided by the density of waterρ_W4at 4 °C (0.9999750 g/cm³). The relative density at 20 °C D₄²⁰is calculated according to the following equation: D₄^{20 =}ρ_{TI /}ρ_W4

D₄²⁰:   Relative density (without dimension) of the test item measured at a temperature of 20 °C compared to the density of water at 4 °C

ρ_TI:      Density of the test item measured at a temperature of 20 °C ± 0.01 °C in g/cm³

ρ_W4:    Density of water at 4 °C in g/cm³

D₄^{20 = 1.5045 g/cm³ / 0.9999750 g/cm³ = 1 .5045}

Conclusions:

The relative density of the test substance is 1.5.

Key value for chemical safety assessment

Relative density at 20C:

1.5