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Diss Factsheets

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

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

Materials and methods

Test guideline
Qualifier:
no guideline required
Principles of method if other than guideline:
Potassium tetrahydroiso-alpha acid resin, batch no. EXP 6. The resin was melted by placing in a drying cabinet at ca.60 - 75 oC. The resin was then introduced into pre-weighed 25-ml volumetric flasks. The gross weight of the flask plus resin was determined at 18.5 oC. Reverse osmosis water was then added to the flasks to bring the total volume up to 25 ml, and the weight measured again. The weights were used to calculate the density of the resin.
GLP compliance:
no
Type of method:
other: Similar to oycnometer method

Test material

Constituent 1
Reference substance name:
α-Bitter acids, hop, hydrogenated, isomerized
EC Number:
295-619-8
EC Name:
α-Bitter acids, hop, hydrogenated, isomerized
Cas Number:
92113-15-0
IUPAC Name:
α-Bitter acids, hop, hydrogenated, isomerized
Specific details on test material used for the study:
Batch no. EXP 6. Contains 75.81% w/w potassium salt of hop tetrahydroiso-alpha acids.

Results and discussion

Density
Key result
Type:
relative density
Density:
ca. 1.12 g/cm³
Temp.:
19.25 °C

Applicant's summary and conclusion

Conclusions:
The density of the UVCB potassium tetrahydroiso-alpha acid resin is ca. 1.12 g per cm^3.