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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Density

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Administrative data

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Endpoint:
relative density
Type of information:
not specified
Adequacy of study:
weight of evidence
Study period:
no data
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Remarks:
Data comes from a handbook, cited in a secondary source. The substance is adequately identified, but without purity.
Qualifier:
no guideline followed
Principles of method if other than guideline:
no data
Dynamic viscosity of test material:
not applicable (solid)
Type:
density
Density:
1.93 g/cm³
Temp.:
20 °C
Type:
relative density
Density:
ca. 1.93 other: relative density is dimensionless
Temp.:
20 °C

Crystal density at 20oC/g.cm-3 1.93

Executive summary:

Some properties of TATB are presented in this publication, cited from a handbook. A crystal density value of 1.93 g/cm3, at 20°C, is given for the substance.

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
no data
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Remarks:
Data comes from a review publication, as a secondary source citing various references. Test conditions are not specified. The substance is adequately identified, but without purity. Therefore validity cannot be granted.
Qualifier:
no guideline followed
Principles of method if other than guideline:
see Results below for the methods used
Dynamic viscosity of test material:
not applicable (solid)
Type:
density
Density:
>= 1.915 - <= 1.937 g/cm³
Remarks on result:
other: (temperature not specified)
Type:
relative density
Density:
ca. 1.915 - ca. 1.937 other: relative density is dimensionless
Remarks on result:
other: (temperature not specified)

Density (g/cm3).

1.915 (pressed, 22°C)

1.915 ±0.006 by flotation with Ba(ClO4)2 (Cady, Los Alamos National Laboratory, 1973)

1.925 (99.4% of TMD) by He gas pycnometry (Cady, LANL, 1980)

1.935 by He gas pycnometer (Cady, 1986)

1.937 ±0.004 by x-ray crystallography (Cady, LANL, 1981)

Executive summary:

Some properties of TATB are presented in this review publication, cited from various sources. Five values ranging between 1.915 and 1.937 g/cm3, obtained by different test methods, are provided.

Endpoint:
relative density
Type of information:
not specified
Adequacy of study:
weight of evidence
Study period:
no data
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 data
Dynamic viscosity of test material:
not relevant, solid
Type:
density
Density:
1.93 g/cm³
Remarks on result:
other: (temperature not specified)
Type:
relative density
Density:
ca. 1.93 other: relative density is dimensionless
Remarks on result:
other: (temperature not specified)
Conclusions:
The substance is much denser than water.
Executive summary:

The handbook provides some physico-chemical properties on explosive substances. A density of 1.93 g/cm3 is given for TATB.

Description of key information

The result relates to crystal density (in g/cm3).

The substance is much denser than water.

Key value for chemical safety assessment

Relative density at 20C:
1.93

Additional information

No experimental study is available for the substance.

From several literature sources (handbook and secondary sources), in a Weight-of-Evidence approach, the density values range between 1.915 and 1.937 g/cm/3, relating to crystal density, eg true, not bulk, density. The handbook value of 1.93 g/cm3 (giving a relative density D20/4 of 1.93, unitless, assuming water density at 4°C is ca 1.0) is retained as key data.