Hydrogen Isotope Research Center - Toyama Univ.

Data Base for Tritium Solid Breeding Materials (Li₂O, Li₂TiO₃, Li₂ZrO₃ and Li₄SiO₄) of Fusion Reactor Blankets --- Yoshiaki FUTAMURA

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5. Database for Li₂TiO₃(β)

5.3 Chemical stability and compatibility

5.3.1 Compatibility with water

No.	Data and remark	Fig.	Refs.
1	Low solubility in water     ≪ 1% uptake after 6 months exposure to room air.	-	50
2	Excellent.     No interaction with water.     Difficult soluble in water.     No dissolution of Li is detectable after 40 days immersion.	-	50
3	At 100°C, ~20% of lithium dissolved in 3 months. At room temperature, ~4% of lithium dissolved in 5 months.	-	92

5.3.2 Compatibility with structural materials

No.	Data and remark	Fig.	Refs.
1	Interaction with 316SS, d : penetration depth, μm. d=3600t0.5exp(–9000/T)     0.1 MPa He, 823≦T≦923K, 410≦t≦1023 hr	-	64
2	A very extremely small amount of interaction with 316SS, HT9 and 316SS+Ni at 600 μm. Temperature range : 400~820°C	-	53

5.3.3 Compatibility with Beryllium

No.	Data and remark	Fig.	Refs.
1	No data	-	65

5.3.4 Compatibility with acid

No.	Data and remark	Fig.	Refs.
1	Li dissolution     90% after 4 hr in 95% aqua-regia+5% HF     84% after 15 hr in 1 M HNO3 at 323K	-	50, 64, 52, 65, 66

5.3.5 Compatibility with reprocessing liquid

No.	Data and remark	Fig.	Refs.
1	90% Li recovery after refluxing in 95% aqua-regia+5% HF for 4 hr.	-	53, 65, 66