| 单词 |
perboric |
| 释义 |
perboric, a. Chem.|pɜːˈbɔərɪk|
[ad. F. perborique (A. Étard 1880, in Compt. Rend. XCI. 931), f. per- per-1 5 b + borique boric a.]
perboric acid: the supposed parent acid of perborates, which was formerly thought to have the formula HBO3 and is only known in acidic solutions containing perborate anions.
1881Chem. News 14 Jan. 25/2 Whilst an equimolar mixture of magnesium sulphate, ammonium chloride, and ammonia is not rendered turbid either by oxygenated water or by boric acid, a mixture of the two precipitate it abundantly, acting as perboric acid. 1924J. W. Mellor Comprehensive Treat. Inorg. & Theoret. Chem. V. xxxii. 116 Perboric acid itself has not been made... In ethereal soln. and an excess of hydrogen peroxide, the partition coeff. of boric acid increases a little corresponding with the formation of free perboric acid in the etheral soln. 1973N. N. Greenwood Chem. Boron (1975) vi. 887 Reaction of orthoboric acid with hydrogen peroxide gives perboric (peroxoboric) acid solutions which probably contain the monoperborate anion [HOOB(OH)3-]. |
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