The physicochemical and technological principles underlying the production of potassium hydroxide through the causticisation of potassium carbonate with lime milk were studied. The influence of the K2CO3 solution concentration, the concentration of lime milk, and the Ca(OH)2 dosa...
Open access
Research Article10.9734/CSJI/2026/v35i61081
Background: Mineralized mass (MM), a low-grade by-product of phosphorite beneficiation, contains phosphorus with low laboratory solubility. Aims: To characterise the physicochemical composition of a composite organomineral fertiliser obtained by processing mineralized mass (MM),...
Open access
Research Article10.9734/CSJI/2026/v35i61080
ABDOULAYE Ibrahim Djabar, Mahamat Seid Ali Malloum, Mbai-yelkom Fidel Karnot, Djimassingar Golngar, AKOINA Moursal & AHMAT AL-TIDJANI Hissein·Chemical Science International Journal·2026
Bir-Hâmiya thermal spring, located in Ouaddaï Province, eastern Chad, is a hydromineral resource that local communities have used for therapeutic purposes for generations, although it remains poorly documented in the scientific literature. This study characterizes its physicochem...
Open access
Research Article10.9734/CSJI/2026/v35i61079
Lead (Pb(II)) contamination in aquatic systems requires analytical methods that are sensitive, rapid, and environmentally responsible. In this study, a Sequential Injection Analysis (SIA) system coupled with UV-Vis detection was developed using corn silk (Zea mays L.) extract as...
Open access
Research Article10.9734/CSJI/2026/v35i51078
This paper presents a comprehensive review of temperature measurement technologies for applications operating above 1000 °C. Accurate temperature measurement in this range is essential for gas turbines, combustion chambers, nuclear reactors, steelmaking, glass processing, and oth...
Open access
Research Article10.9734/CSJI/2026/v35i51075
Aim: This study investigated the feasibility of directly producing chlorate defoliants from secondary mother liquors (SML) via interaction with sodium chlorate. Study Design: Laboratory investigation of the effects of the SML:NaClO₃ ratio and reaction duration on conversion and p...
Open access
Research Article10.9734/CSJI/2026/v35i51076
Faecal sludge management is a major sanitation challenge in N’Djamena, Chad, where on-site sanitation systems are widely used and local design data for treatment facilities remain limited. This study quantified faecal sludge production and characterised selected physicochemical p...
Open access
Research Article10.9734/CSJI/2026/v35i51077
Background: Incorporating starch into plasticised polyvinyl chloride (PVC) can increase the renewable constituent fraction but may reduce tensile strength, deformability, and stiffness. Commercial glycerol monostearate may influence these properties through formulation-related ef...
Open access
Research Article10.9734/CSJI/2026/v35i51074
Aim: This study evaluates natural saline waters from the Bukhara region as magnesium-bearing raw materials and to establish a rational sodium hydroxide precipitation regime for recovering magnesium as a magnesium hydroxide-rich product. Study Design: A comparative laboratory stud...
Open access
Research Article10.9734/CSJI/2026/v35i51073
Djimassingar Golngar, Mbai-yelkom Fidel Karnot, Ahmat Al Tidjani Hissein, Al-Djazouli Ouchar Mahamat & Mahamat Seid Ali Malloum·Chemical Science International Journal·2026
Groundwater is the principal source of domestic water in the city of Léré and its surroundings, Mayo-Kebbi-West Province, south- western Chad, yet its quality had never been systematically assessed prior to this study. This work aimed to (i) characterize the physicochemical quali...
Open access
Research Article10.9734/CSJI/2026/v35i51072