Introduction Congeners are biologically active chemicals and are often contained in alcoholic beverages, in addition to ethanol, the key biologically active ingredient of alcohol. They are produced in the process …
Phosphate rock denotes the product obtained from the mining and subsequent metallurgical processing of P-bearing ores. In addition to the main phosphate-bearing mineral, Phosphate rock deposits also contain accessory or …
Abstract: About 70 years ago it was coined that there were two types of Bacteria one Gram – Positive and one Gram-Negative (according to Dr. Hans Christian Gram) both of …
PART I – FERRO MANGANESE Slag is a partially vitreous byproduct of metal smelting to separate the metal fraction from the unwanted fraction. Ores often have unwanted minerals associated with …
Gypsum is used as a building material for different purposes like setting retarder for portland cement, gypsum board, ceramic molding tools etc. However before using, it is important to know …
Melamine is an organic base and a trimer of cyanamide, with a 1,3,5-triazineskeleton. Like cyanamide, it contains 66% nitrogen by mass and, if mixed with resins, has fire retardant properties due to its release of nitrogen gas when burned or …
Pyroxinite is naturally occurring Magnesium Silicate mineral. It is an ultrabasic igneous rock consisting essentially of minerals of the Pyroxene group. The types of Pyroxene and the ore minerals present …
Principle: Urea is converted to biuret in the range 132 to 135°C (depending on purity) associated with loss in weight. Measuring the loss in weight of unknown samples and comparing …
In the past decade urea has surpassed and nearly replaced ammonium nitrate as a fertilizer. This has brought about new questions on urea and its use. Biuret [(H2N-CO-)2NH] is one …
ABSTRACT: Occurrence of potentially toxic formaldehyde and other carbonyl compounds in indoor air is threat to human life. Woodwork and cigarette smoking are known as extensive sources of emission of …
