Evidently, the diffusion coefficient is delicate to impurities or structural problems from the crystal, but that remains for being quantified. For our tough estimates of the time at temperature necessary to remove the hydrogen from our samples, the hydrogen diffusion coefficient selected is always that provided by Belonoshko et al. https://socialbuzzmaster.com/story3569335/new-step-by-step-map-for-buy-sri-lanka-pukhraj-in-india