English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Chromates and polychromates with organic cations can be obtained by careful hydrolysis of mono-, di- or trichromate esters in the presence of organic bases. Mixtures of nitrobenzene and carbon tetrachloride are used as solvents. When nitrobenzene soluble chromates are reacted with chromate esters more condensed anions such as tri- and tetrachromates are formed. As tetra-n-butylammoniumsalt [(C 4 H 9 ) 4 N] 2 Cr 3 O 10  for the first time a trichromate was obtained that can be recrystallized undecomposed from water.

Neue Verfahren zur Darstellung von Chromaten und Polychromaten / New Methods for the Preparation of Chromates and Polychromates