Some are phenolic condensation products of formaldehyde like those we have been considering, but some use coal-tar compounds having no phenol groups, such as naphthalene sulfonic acid.
A phenolic condensation product closely related to bakelite and redmanol is condensite, the invention of Jonas Walter Aylesworth.
Auwers then concluded that the para compounds are phenolic and the ortho compounds are quinone hydrazones or act as such.
Condensation of Phenols Condensation of Hydroxybenzene Condensation of Dihydroxybenzene Trihydroxy benzene Polyhydroxybenzenes Quinone Phenolic Ethers Nitro Bodies Amino Bodies Aromatic Alcohols Aromatic Acids 3.
This conclusively proves that the blue coloration given by Neradol D with iron salts is no characteristic feature of the pure synthetic tannin, but is caused by the phenolic impurities accompanying the latter.
The above reactions show the similarity of this dinaphthyl derivative to the dicresyl derivative, and the absence in the former of characteristic reactions with iron salts is mainly accounted for by its lack of phenolic groups.
One of the hydroxyl groups has phenolic functions, the other alcoholic functions.
This interesting reaction points very decidedly to thephenolic character of morphine.
The reply was virtually an admission that the toxic, caustic, phenolic components of creosote were present in Creosote-Delson just as in the official creosote.
It has been said that the phenolic and amidic derivatives of naphthalene, i.
Large numbers of these acid azo-dyes are now made from various diazotised amido-compounds combined with different phenols and phenolic acids.
Resorcinol is a phenolic derivative of benzene containing two hydroxyl groups; it is therefore related to phenol in the same way that diamidobenzene is related to aniline or phthalic acid to benzoic acid.
The mode of procedure is to diazotise the amido-compound by sodium nitrite and hydrochloric acid in the manner already described, and then add the diazo-salt solution to the phenolic compound dissolved in alkali.
It was found that nitrosodimethylaniline reacted in a similar way with other phenolicor with amidic compounds.
The acid is a phenolic derivative of benzoic acid, viz.
The crude carbolic acid as separated from the alkaline solution is a mixture of several phenolic compounds, and all of these but the carbolic acid itself are gradually removed during the process of purification.
This is also an acid or phenolic dye, as a glance at its formula will show you.
The first group imparts phenolic characters, while the second gives true acid properties, and both of these acting together cause the dyes to be able to form colour lakes with metallic oxides.
The mordanting may be done either before or after the dyeing, the first plan being that commonly adopted with the phenolic colours, while the second method may be used and is the best to use with azo-mordant dyes.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "phenolic" in a variety of sentences. We hope that you will now be able to make sentences using this word.
