Polyurethanes, formed through the reaction of raw polyols with isocyanates, are one of the most widely used types of plastics today. By varying the starting materials, a diverse range of plastics can ...

The quantity of potassium hydroxide needed for neutralization of half of the anhydride groups, all free acids and all carboxyl-terminated groups of an unsaturated polyester resin (UPR), is indicated ...

UNDER this title McHenry and Graham 1 have published an investigation on the ascorbic acid content of raw and cooked foodstuffs. They found in the case of cauliflowers, carrots, parsnips, beets and ...

ON adding hydrochloric acid to a solution of ascorbic acid, reversible oxidation with 2: 6-dichloro-phenolindophenol and iodine becomes progressively slower as the mineral acid content increases. When ...

The process of carrying out a titration allows us to accurately measure the volumes of an acid and an alkali required for neutralisation. An indicator will be used to determine the exact volume ...

Soap is used extensively in everyday life. Industrial production of this product is a complicated process that first begins with saponification and then purification to eliminate by-products and ...

THROMBOCYTOPENIA may result from impaired production of platelets, increased destruction of platelets or a combination of these factors. At the present time this etiologic distinction is generally ...