Assertion: tungsten | /r/CapableOf | attack by acid
Facets:
Source sentences:
text: Tungsten is rather resistant to attack by acids, except for mixtures of concentrated nitric and hydrofluoric acids, and it can be attacked rapidly by alkaline oxidizing melts, such as fused mixtures of potassium nitrate and sodium hydroxide or sodium peroxide; aqueous alkalies, however, are without effect.
text: Tungsten is resistant to attack by alkalis, oxygen, and acids.