170135_inorganicventures_flipping

13.6 Sample Preparation by Fusion

Sodium carbonate fusions:

Flux - Na 2 CO 3 Crucible - Pt 0 Flux:Sample ra9o - 20:1

Temperature - 1000 0 C Most Popular Applica9ons - Na 2

CO 3 fusions are very popular in the decomposi9on of minerals,

silicates, refractories, insoluble metal fluorides, etc. for example, brookite TiO 2

will not be

aBacked by acids, and α Al 2 O 3

is very resistant to acid aBack.

13.7 Sample Preparation by Fusion

Lithium carbonate fusions:

Flux - Li 2 CO 3 Crucible - Graphite. CAUTION Li 2

CO 3

will a=ack Pt crucibles.

Flux:Sample raDo - 5:1 Temperature - 700 0 C Most Popular ApplicaDons - Similar to Na 2 CO 3 .