Assertion: tellurium | /r/HasProperty | precipitated
Facets:
value: selectively
type: MANNER
Source sentences:
text: Also, when tellurium is precipitated by adjusting the pH of the solution to 1.5 to 2.5 after leaching, copper does not settle in this pH range and remains in the filtrate, so almost all of the leached copper is recovered from the filtrate.
text: Further, even if arsenic, selenium, and silver are eluted from the raw material, they do not precipitate in the pH range, but tellurium is selectively precipitated, so that these impurity metals and tellurium can be separated.
text: It not only readily reduces chlorine, bromine and iodine to the corresponding hydracids with simultaneous liberation of tellurium (which in the case of chlorine can further pass easily into the tetrachloride), but it also reduces solutions of such salts as ferric chloride and mercuric chloride to the lower chlorides, tellurium being precipitated.