Oak Apples

 
Sample ID:
PK37400
Origin:
Vegetable (Quercus infectoria)
Chemical Information:
Oak galls
Sample Type:
Reference material
Description:
Dried gallnuts
History of use:
Since antiquity
Sample Source:
Kremer Pigments
Alternative names:
C.I. Natural Brown 6, NBr6, Noix de Galle
Material Class:
Natural organic dyes and pigments
Acquisition Conditions:
Current intensity: 10.60 µA
Tube voltage: 40 kV
Analysis time: 300 s
No filtering, air atmosphere