Determination of Water Hardness
Chemical analysis of water for determination of hardness by EDTA titrimetric method. Distinguishing temporary and permanent hardness.
Determination of Water Alkalinity
Chemical analysis of water for determination of total alkalinity (carbonate, bicarbonate) by double indicator method.
Determination of Residual Chlorine
Chemical analysis of water for residual chlorine by iodometric / DPD method. Significance for drinking water safety.
Synthesis of Urea-Formaldehyde Resin
Step-by-step synthesis of UF resin — a thermosetting polymer. Study of curing, properties and sustainable alternatives.
Determination of Dissolved Oxygen
Winkler's iodometric method for determination of dissolved oxygen in water. Critical for aquatic ecosystem health.
Determination of Surface Tension
Determination of surface tension of a given liquid by drop-weight method / stalagmometer. Industrial applications in lubrication & coatings.
Paper Chromatography of Plant Pigments
Separation and identification of plant pigments (chlorophyll, carotenoids) by ascending paper chromatography. Rf value calculation.
Viscosity vs. Temperature (Redwood Viscometer)
Effect of temperature on the viscosity of an oil sample using Redwood viscometer. Significance in engine oils and lubricants.
Water of Crystallization in Mohr's Salt
Gravimetric determination of the number of water molecules (x) in Mohr's salt [(NH₄)₂Fe(SO₄)₂·xH₂O] by heating to constant weight.
Proximate Analysis of Coal
Determination of moisture content, volatile matter, fixed carbon & ash content. Assessment of coal quality for industrial applications.
Oxalic & Sulphuric Acid Determination
Determination of amounts of oxalic acid (H₂C₂O₄) and sulphuric acid (H₂SO₄) in one litre of solution by permanganate and NaOH titrations.
Flash Point & Fire Point (Pensky Martin's)
Determination of flash point and fire point of a given oil sample using Pensky Martin's closed cup apparatus. Safety implications.
Determination of Iodine Value of an Oil
Wijs method for iodine value determination. Assesses the degree of unsaturation in fatty acids — quality measure for edible & industrial oils.
Determination of Water Acidity
Determination of total acidity (mineral & CO₂ acidity) of a water sample by NaOH titration. Environmental significance.
Strength of K₂Cr₂O₇ by Iodometric Titration
Determination of strength of K₂Cr₂O₇ using provided N/10 Na₂S₂O₃ and N/10 K₂Cr₂O₇. Iodometric titration with starch indicator.