Results 1 to 10 of about 608 (80)

Violet dyes of the 1860s: Hofmann, Britannia, violet de Paris, Wanklyn’s, and Crystal violet (1883)

Journal of Chemical Research, 2023
Two 19th-century historical violet dyes from the Historische Farbstoffsammlung, Technical University of Dresden, have been analysed by liquid chromatography–mass spectrometry (LC-MS).
M John Plater, Andrea Raab, Horst Hartmann   +2 more
doaj   +2 more sources

A State‐of‐Art Review of the Metal Oxide‐Based Nanomaterials Effect on Photocatalytic Degradation of Malachite Green Dyes and a Bibliometric Analysis

Global Challenges, Volume 7, Issue 6, June 2023., 2023
This review article describes the photocatalytic technique, reaction mechanisms, kinetics, recyclability, and stability in literature from 2017 to 2022 to degrade malachite green (MG) dye using various metal‐oxide‐based nanomaterials. The bibliometric analysis looks at the publication, citations, author collaboration to evaluate research impact ...
Ehtisham Umar, Muhammad Ikram, Junaid Haider, Walid Nabgan, Muhammad Imran, Ghazanfar Nazir   +5 more
wiley   +1 more source

A timeline for the introduction of synthetic dyestuffs in Japan during the late Edo and Meiji periods

Heritage Science, 2018
A widespread belief among scholars and connoisseurs of the Japanese color woodblock print (nishiki-e) holds that synthetic dyes were imported from the West in the 1860s, and soon came to be used for all nishiki-e colorants during the Meiji period. These “
Anna Cesaratto, Yan-Bing Luo, Henry D. Smith, Marco Leona   +3 more
doaj   +1 more source

Evaluation of Antiulcer and Cytotoxic Potential of the Leaf, Flower, and Fruit Extracts of Calotropis procera and Isolation of a New Lignan Glycoside

Evidence-Based Complementary and Alternative Medicine, Volume 2017, Issue 1, 2017., 2017
Calotropis procera is traditionally used for treating many diseases including ulcers and tumors. It was thus deemed of interest to investigate and compare the antiulcer and cytotoxic activities of C. procera leaf, flower, and fruit extracts in an attempt to verify its traditional uses.
Areej Mohammad Al-Taweel, Shagufta Perveen, Ghada Ahmed Fawzy, Attiq Ur Rehman, Afsar Khan, Rashad Mehmood, Laila Mohamed Fadda, Michał Tomczyk   +7 more
wiley   +1 more source

Modified Cenospheres as an Adsorbent for the Removal of Disperse Dyes

Advances in Environmental Chemistry, Volume 2015, Issue 1, 2015., 2015
The main objective of this investigation was to use modified cenospheres for the removal of disperse blue 79:1 (DB) and disperse orange 25 (DO) dyes from aqueous solution by batch adsorption process under different conditions (pH, adsorbent dose, adsorbate concentration, agitation speed, contact time, and temperature).
Markandeya Tiwari, S. P. Shukla, D. Mohan, D. S. Bhargava, G. C. Kisku, Jesus Simal-Gandara   +5 more
wiley   +1 more source

Micellar Effects on Nucleophilic Addition Reaction and Applicability of Enzyme Catalysis Model

Journal of Chemistry, Volume 9, Issue 3, Page 1181-1187, 2012., 2012
This study describes the effect of anionic and cationic micelles on nucleophilic addition reaction of rosaniline hydrochloride (RH) with hydroxide under pseudo‐first order condition. Strong inhibitory effect is observed due to SDS micelle, whereas CTAB catalysed the reaction.
R. K. London Singh
wiley   +1 more source

Rapid Spectrophotometric Determination of Trace Amounts of Nitrate‐Nitrogen Using Dapsone and α‐Naphthol

Journal of Chemistry, Volume 3, Issue 3, Page 146-153, 2006., 2006
A simple, rapid and sensitive spectrophotometric method has been developed for the trace determination of nitrite using Dapsone and α‐Naphthol. The proposed method is based on the diazotization of Dapsone followed by coupling with α‐Naphthol in sodium hydroxide medium to give an intense pink coloured azo dye. The dye shows absorption maximum at 540 nm.
Padmarajaiah Nagaraja, Jainara S. Prakash, Besagarahally L. Bhaskara   +2 more
wiley   +1 more source

Comparison of Apical Leakage Patterns Shown by Two Different Methods [PDF]

Pesquisa Brasileira em Odontopediatria e Clínica Integrada, 2007
Purpose: To compare the apical leakage using dye penetration and electrochemical methods each successively used on the same teeth.Methods: 31 freshly extracted anterior single root human teeth with straight root canals were selected.
Jalil MODARESI, Abdorahim DAVARI, Alireza DANESHKAZEMI   +2 more
doaj  

Liquid Chromatography-Mass Spectrometry analysis of some early green dyes

Journal of Chemical Research
Five historical green dyes from the Historische Farbstoffsammlung, Technical University of Dresden, have been analysed by liquid chromatography – mass spectrometry (LC-MS).
Michael John Plater, Andrea Raab, Horst Hartmann   +2 more
doaj   +1 more source

Chlorate‐based homemade explosives: A review

WIREs Forensic Science, Volume 6, Issue 2, March/April 2024.
Chlorate and perchlorate‐based homemade explosives: Criminal use, forensic analysis, and future directions. Abstract Chlorates and perchlorates, inorganic salts known for their potent oxidizing properties, find utility in various products such as pyrotechnics, matches, and disinfectants.
Aaron J. Horrocks, David Detata, Kari Pitts, Simon W. Lewis   +3 more
wiley   +1 more source