unprecipitableadj.
/ˌʌnprᵻˈsɪpᵻtəbl/, U.S. /ˌənprəˈsɪpədəb(ə)l/ Chiefly Chemistry.
Incapable of being precipitated (e.g. from solution in a liquid); not susceptible to precipitation.
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the world > matter > chemistry > chemical reactions or processes > [adjective] > of or relating to named chemical reactions or processes > of or relating to precipitation > incapable of being precipitated
unprecipitable1783
1783 Philos. Trans. (Royal Soc.) 73 76 Now this compound of calx of silver, and silver in its metallic form, may well be unprecipitable by iron.
1852 Med. Times & Gaz. 3 July 7/1 The solution, however, has been unprecipitable by chloride of sodium, proving that the albumen has not returned to its ordinary condition.
1914 Chem. Engineer 20 170/1 This amount of unprecipitable matter has been taken as 7 per cent of the wood oil.
2011 Plant Cell 23 1872/2 Yeast RNA..was precipitated with ethanol and sodium acetate at -20°C to remove the unprecipitable fraction.
This entry has been updated (OED Third Edition, December 2014; most recently modified version published online December 2021).
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adj.1783