- Database
- Experimentalists
- Date
- 2022-01-01
- Provider
- JAXA - remaining sample given back in June 2022
- Parent sample
- A0108_6
- Substrate material
- synthetic type IIa diamond windows
- Substrate comments
- between two 3 x 0.5 mm diamond windows
- Temperature
- 22.0 $\pm$ 2.0 $^{\circ}C$
- Temperature max
- 22.0 $\pm$ 2.0 $^{\circ}C$
- Comments
- IOM sample stored in dessicator under vacuum
- Type
- ambient air
- Fluid temperature
- 22.0 $^{\circ}C$
- Fluid pressure
- 1.0 $atm$
- Number
- 1
- Layers
- Title
- selection of the grains
- Matters
- Materials
- Processing steps
-
Step Chronology Date Type Process Changes #1 before layer formation 2022-01-01 chemical Ultrapure water (Milli-Q water, 18.2 M$\omega$) and CH3OH:CH3Cl (2/1 v/v) leaching sequences were applied to extract soluble organic molecules (SOM) removal of soluble organic molecules #2 before layer formation 2022-01-01 chemical HCl 6N was used to remove carbonates, sulfides (pyrrhotite and pentlandite) and other minerals, as one step of 2 h, followed by ultrapure water rinsing and a second step overnight. removal of minerals #3 before layer formation 2022-01-01 chemical A similar sequence with HF(48%):HCl(37%) (2/1 v/v) was run, followed by a short HCl 6N sequence (2 h), to remove any cations that might subsequently react with F- to form insoluble fluorides. removal of cations #4 before layer formation 2022-01-01 chemical The sample was rinsed again with ultrapure water and CH3OH:CH3Cl (2/1 v/v), for removing encaged free molecules. removing of free molecules #5 before layer formation 2022-01-01 thermal After having purged the remaining reagents, the sample holder was dismounted and the filter was dried. removal of reagents and water => dried IOM #6 during layer formation 2022-01-01 mechanical Grains pressed between two diamond windows IOM grains crushed down to a thickness of about 10 microns