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Physical & Chemical properties

Density

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Reference
Endpoint:
relative density
Type of information:
other: Handbook
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Principles of method if other than guideline:
No details are available on the guideline used to determine this result.
GLP compliance:
not specified
Type of method:
other: Not stated
Key result
Type:
relative density
Density:
1.33 other: unitless
Temp.:
20 °C
Conclusions:
A relative density value of 1.33 at 20°C was reported for ATMP-H in a handbook and collection of reliable data to which the original sources are traceable.

Description of key information

Relative density [ATMP-H]: 1.33 at 20°C

Key value for chemical safety assessment

Relative density at 20C:
1.33

Additional information

No relative density values are available for the solid form of ATMP-H, but this does not constitute a data gap since no solid ATMP acid products are known. A number of specific gravity values of individual commercial products (aqueous solutions) are known. While the individual sources are secondary literature, meaning that in most cases the reliabilities are not assignable, overall the weight of evidence is taken to be adequately reliable for the purpose of registration, particularly in view of the acceptance of the data in the HPV program.

 

1) A relative density of 1.33 at 20°C was reported in a handbook or collection of reliable reference sources for ATMP-H. The same result was reported in a peer-reviewed data profile published through the OECD HPV program, which is considered reliable with restrictions. The result is considered to be reliable and assigned as key study.

 

The key study is supported by the following company data of non-assignable reliability:

 

2) Values of 1.3 g/cm³ at 20°C were reported for four separate commercial forms of ATMP-H in the online product specification data for a major European producer.

 

3) A specific gravity of 1320-1360 kg/m³ at 20°C was reported in a company MSDS for ATMP-H for a major European producer. The original reference was not available for review and no further information is available.

 

4) A typical specific gravity of 1.33 ± 0.02 was reported in a company product data sheet for ATMP-H for a major European importer. The original reference was not available for review and no further information is available.

 

5) A specific gravity of 1.33 at 20°C was reported in a company MSDS for ATMP-H for a major European producer. The original reference was not available for review and no further information is available.

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