Meaning of quercitannoform | Babel Free
Definitions
Tannoform derived from quercitannin or quercitannic, rather than gallotannic, acid.
Examples
“Quercitannoform, CH2(C1, H13O7)2 + H2O, from quercitannic acid and formaldehyde, is a reddish - yellow powder which blackens at 275°; it is insoluble in water, ammonia, and soda, and its solution in sulphuric acid, which[…]”
“QUERCITANNOFORM is prepared in the same oak-bark, forming a yellowish-red powder, insoluble in water, alkalies and other organic solvents. In addition, Quecitannoform […]”
CEFR level
C2
Mastery
This word is part of the CEFR C2 vocabulary — mastery level.
This word is part of the CEFR C2 vocabulary — mastery level.
See also
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