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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The physico-chemical parameters in the equation were calculated by PBILC (Principle of Balance of Identical Like Charges) proposed by COBBLE et al. or assumed to be identical with those for HC1-1NaC1 aqueous solutions. The calculation of the pH of high temperature and high pressure sour environments was enabled by using this equation. A Nb-doped TiO2 semiconductor electrode of n-type was well applied to measure the pH of the environments and underwent no interference with NaCl, H2S and CO2. The measured pH values agreed well with those estimated by the newly proposed technique at the temperature up to 473 K and at partial pressures of H25 and CO2 up to 4 MPa. It was ascertained by pH measurements for HCI NaC1 aqueous solutions at elevated temperatures that the assumption made for physicochemical parameters in the pH estimation was valid.

Estimation and Measurement for pH of High Pressure and High Temperature Sour Environments