Chalk from Bologna (light)

 
Sample ID:
PK58150
Origin:
Mineral; Provenance: Bologna, Italy
Chemical Information:
Natural calcium sulphate, CaSO4 x n H2O
Sample Type:
Reference material
Description:
Powder sample (50-60 µ)
History of use:
Since antiquity
Sample Source:
Kremer Pigments
Alternative names:
C.I. Pigment White 18, PW18, Biancho Secco, Lime White
Material Class:
Mineral pigments
Acquisition Conditions:
Current intensity: 10.60 µA
Tube voltage: 40 kV
Analysis time: 300 s
No filtering, air atmosphere