Mushy peas Without the colourant the dish would be murky grey. In July 2010 an EU directive required the warning label "May have effects on activity and attention in children" to be applied to foods containing tartrazine. Mushy peas Mushy peas are dried marrowfat peas which are first soaked overnight in water with sodium bicarbonate (baking soda), then rinsed in fresh water and simmered with a little sugar and salt until they form a thick green lumpy mash. Sometimes mint is used as a flavouring. In Northern England and the Midlands they are a traditional accompaniment to fish and chips, although their
Freezing-point depression no longer as common a measurement method as it once was, but it was included in textbooks at the turn of the 20th century. As an example, it was still taught as a useful analytic procedure in Cohen's "Practical Organic Chemistry " of 1910, in which the molar mass of naphthalene is determined using a "Beckmann freezing apparatus". Freezing-point depression can also be used as a purity analysis tool when analysed by differential scanning calorimetry. The results obtained are in mol%, but the method has its place, where other methods of analysis fail. This is also the same principle acting