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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Nov 2017 - Apr 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
Deviations:
no
GLP compliance:
yes
Type of method:
air comparison pycnometer (for solids)

Test material

Constituent 1
Chemical structure
Reference substance name:
L-Histidine Hydrochloride Monohydrate
EC Number:
611-821-4
Cas Number:
5934-29-2
Molecular formula:
C6-H9-N3-O2.Cl-H.H2-O
IUPAC Name:
L-Histidine Hydrochloride Monohydrate
Test material form:
solid: crystalline
Details on test material:
- Name: L-Histidine Hydrochloride Monohydrate (HHM)
- Appearance: White crystals or crystalline powder
- Batch: P817T011
- CAS no.: 5934-29-2
- Purity/Composition: 100.1%
- Molecular weight: 209.63 g/mol
- Test item storage: room temperature
- Expiry date: 31 October 2020
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Batch No.of test material: P817T011
- Expiration date of the lot/batch: 31 October 2020
- Purity: 100.1%


STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: At room temperature

Results and discussion

Density
Key result
Type:
relative density
Density:
1.49 g/cm³
Temp.:
20 °C

Any other information on results incl. tables

 Density of the Test Item
Density [g/cm3] Test 1 Test 2 Mean
1.487 1.488 1.49

Applicant's summary and conclusion

Conclusions:
The density of the test item at 20ºC was 1.49 g/cm3 (1.49 × 103 kg/m3)..
Executive summary:

A gas comparison stereopycnometer was used for the determination of the density and relative density of L-Histidine Hydrochloride Monohydrate (HHM).

The density of the test item at 20ºC was 1.49 g/cm3 (1.49 × 103 kg/m3).

The relative density was 1.49.